CN105642895A - Plasma 3D printing remanufacturing equipment and method for mold - Google Patents

Plasma 3D printing remanufacturing equipment and method for mold Download PDF

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Publication number
CN105642895A
CN105642895A CN201610121787.6A CN201610121787A CN105642895A CN 105642895 A CN105642895 A CN 105642895A CN 201610121787 A CN201610121787 A CN 201610121787A CN 105642895 A CN105642895 A CN 105642895A
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China
Prior art keywords
mould
plasma
printing
distance
plasma generator
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CN201610121787.6A
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Chinese (zh)
Inventor
华云峰
程国君
郝勇
魏志宇
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Sinoadditive Manufacturing Equipment Co Ltd
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Sinoadditive Manufacturing Equipment Co Ltd
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Priority to CN201610121787.6A priority Critical patent/CN105642895A/en
Publication of CN105642895A publication Critical patent/CN105642895A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/50—Means for feeding of material, e.g. heads
    • B22F12/53—Nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20—Direct sintering or melting
    • B22F10/22—Direct deposition of molten metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/70—Gas flow means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/90—Means for process control, e.g. cameras or sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/007—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/30—Process control
    • B22F10/32—Process control of the atmosphere, e.g. composition or pressure in a building chamber
    • B22F10/322—Process control of the atmosphere, e.g. composition or pressure in a building chamber of the gas flow, e.g. rate or direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Automation & Control Theory (AREA)

Abstract

The invention discloses plasma 3D printing remanufacturing equipment and method for a mold. The equipment comprises a monitoring system, a plasma beam processing system, a machining device for machining a to-be-repaired mold, a horizontal printing table for accommodating the to-be-repaired mold and a temporary fixing element for fixing the to-be-repaired mold temporarily, wherein the plasma beam processing system comprises a plasma generator, a printing position adjusting device, a gas supply device and a powder feeder; the monitoring system comprises a horizontal motion controller, a temperature detection unit, a distance detection unit, a printing distance adjusting controller and a rotation controller, and the temperature detection unit and the printing distance adjusting controller constitute a temperature regulation device. The remanufacturing method comprises steps of 1, mold defect detection and 2, mold repair. The plasma 3D printing remanufacturing equipment and method for the mold have the advantages that the design is reasonable, the operation is simple, convenient and high in efficiency, the use effect is good, a molding cavity is not needed to be closed, a repair process is performed directly in an atmospheric environment, and the quality of the repaired mold is good.

Description

A kind of mould plasma 3D prints and remanufactures Apparatus and method for
Technical field
The invention belongs to rapid shaping technique field, especially relate to a kind of mould plasma 3D printing and remanufacture Apparatus and method for.
Background technology
Mould refers to the various moulds and the instrument that obtain required product in commercial production in order to methods such as injection moulding, blowing, extrusion, die casting or forging forming, smelting, punching presses. In brief, mould is used to the instrument of shaped article. The forming surface of mould refers to the surface in order to moulded products (also referred to as product), and forming surface is the surface directly contacted with institute moulded products. Wherein, the forming surface of die cavity refers to the outer surface in order to moulded products, and the forming surface of core is then the inner surface in order to moulded products. The crudy of mould surface, machining accuracy and serviceability all require higher, directly determine crudy and the machining accuracy of institute moulded products, and multiple operations such as in machining, mould surface need to be machined, cleans, polishing just can machine. In mould use procedure, forming surface effectively need to be protected, once the defects such as breakage, cracking, abrasion occurs in forming surface, then directly affect the molding effect of mould, even result in mould and scrap.
Owing to mould is the important tool in formed product processing, expense accounts for the 10%��30% of product cost. The failure mode of mould has surface abrasion, surfacial spalling, collapses angle, face crack etc., and mould invalidation causes that product is defective and scraps with mould. Product is defective makes direct production cost improve; Manufacturing new mould and replace that the expense of inefficacy mould is huge, the production cycle is long, mould invalidation part only accounts for a little part for mould, and mould is scrapped and caused the huge wasting of resources. In order to reduce product cost, economize on resources, mould invalidation position is remanufactured be mould use unit common method.
At present, when mould is remanufactured, main employing is laser cladding method. Publication number as disclosed in 11 days October in 2007 is in the Chinese invention patent " material of laser repairing high-hardness engine parts scrap mould and method for making and application " of CN101054667A, discloses a kind of method adopting laser melting coating to remanufacture and repairs high-hardness engine parts scrap mould.Publication number disclosed in 4 days Mays in 2011 is in the Chinese invention patent " application in mould repair of the surface cladding technology " of CN102041502A, discloses a kind of method adopting laser melting coating to remanufacture repairing mould. Publication number disclosed in JIUYUE in 2011 14 days is in the Chinese invention patent " a kind of method of remanufacturing die with gradient function by repairing micro zone through laser " of CN102248164A, discloses a kind of method adopting coaxial powder-feeding laser melting coating to remanufacture composition gradient functional layer repairing mould. Publication number disclosed in 25 days January in 2012 is a kind of method adopting laser melting coating repairing mould disclosed in the Chinese invention patent application file of CN102330084A. Publication number disclosed in 14 days March in 2012 is in the Chinese invention patent application file of CN102373468A, discloses and a kind of adopts broadband laser cladding reparation or the method carrying out surface peening mould. Publication number disclosed in 17 days October in 2012 is the technique of a kind of laser repairing automobile die disclosed in the Chinese invention patent application file of CN102732831A, first mould is carried out low-temperature prewarming, then abrading section die cavity is programmed reenact technique to repair, also discloses that a kind of Fe base alloy powder repaired simultaneously. Publication number disclosed in 27 days March in 2013 is a kind of method adopting laser melting coating repairing mould fatigue crack disclosed in the clearly demarcated patent application document of China of CN102995001A, adopts different crackle Treatment technique for processings and laser melting and coating process with the crackle be more than or equal to 0.5mm to less than 0.5mm. Publication number disclosed in December in 2013 25 days is a kind of automobile gearbox gear hot forged mould laser remanufacturing renovation technique disclosed in the Chinese invention patent application file of CN103469198A, adopts alloy powder, to carrying out flaw detection after mould cladding. Publication number disclosed in 22 days January in 2014 is a kind of method of laser fuse repairing mould disclosed in the Chinese invention patent application file of CN103521923A, it is necessary to mould is preheated. Publication number disclosed in December in 2014 24 days is a kind of method adopting high-wearing feature laser cladding of material repairing mould disclosed in the Chinese invention patent application file of CN104233289A, it is necessary to mould is preheated, adopts CW CO after cladding2Laser machine carries out laser irradiation process, in laser cladding process, mould is carried out vibrating failure process.
But at present, the laser melting coating adopted remanufactures the method for mould, is primarily present following three aspect problems:
The first, laser cladding equipment is expensive, simultaneously as the life-span of device core device Optical Maser System is short, price is high, and replacing, maintenance cost height so that the cost that employing laser melting coating remanufactures mould is very high;
The second, the mechanical property requirements of mould is significantly high, in order to reach good performance after laser melting coating, it is desirable to metal dust has good mobility, generally should adopt globular metallic powder, causes that laser melting coating remanufactures the material cost height of mould;
3rd, laser melting coating remanufactures in mold process, it is necessary to molten bath is carried out inert atmosphere protection or all processes and carries out in protective atmosphere. If molten bath is carried out inert atmosphere protection, molten bath cooling is too fast, makes cladding layer stress higher, meanwhile, is also easily caused dusty material and disperses, make fusing insufficient, cause that the mold performance remanufactured is poor, and even cracking is scrapped, and efficiency is low.
It addition, when nowadays mould being remanufactured, there is also welding method. As disclosed in 16 days June in 2010 publication number is a kind of method for quick repair welding, restoring and reproducing of high-alloy cold-working mould disclosed in the Chinese invention patent application file of CN101733512A, mould is carried out 300 DEG C��370 DEG C preheatings by it, then adopt welding wire tungsten argon arc soldering method to carry out Bead weld repair, after built-up welding, carry out the tempering destressing heat treatment of 300 DEG C��370 DEG C.Publication number disclosed in 16 days November in 2011 is a kind of hot forged mould Bead weld repair and remanufacture with special welding rod disclosed in the Chinese invention patent application file of CN102240872A, can not carrying out mould and die preheating and post weld heat treatment, after reparation, hardness is 35��45HRC. Publication number disclosed in 18 days July in 2012 is the restorative procedure of a kind of hot forged mould disclosed in the Chinese invention patent application file of CN102581543A, first the fatigue layer in mould thorax is removed, then with welding wire, impression heap is welded to full for impression filling, last machine-shaping. Publication number disclosed in December in 2012 26 days is the renovation technique of a kind of diel disclosed in the Chinese invention patent application file of CN102837106A, first mould is carried out heat treatment, then adopts welding rod built-up welding, finally carry out temper. Publication number disclosed in 3 days July in 2013 is a kind of roll forging die enabling surfacing manufacturing renovation technique disclosed in the Chinese invention patent application file of CN103182618A, first mould is carried out heat treatment, then prime coat, transition zone and the working lining that successively built-up welding hardness gradually rises, finally carry out temper, and cool to 90 DEG C��190 DEG C with the furnace and come out of the stove.
But at present, the built-up welding adopted remanufactures the method for mould, is primarily present following two aspect problems:
The first, built-up welding remanufactures mould owing to localized heat input quantity is high, poor process control, it is generally required to preheating and tempering heat treatment, simultaneously, it is difficult to built-up welding mechanical property exceedes the material of mold materials itself, cause that the mould process that built-up welding remanufactures is complicated, poor performance;
The second, built-up welding remanufactures mold surface roughness height, and particularly some mould needs to be welded to impression heap impression is filled full, last machine-shaping, and resurfacing welding material consumption is too high, cost is high, and allowance is big.
Publication number disclosed in December in 2014 24 days be disclosed in the Chinese invention patent application file of CN104233159A a kind of forging mold remanufacture technique, by mould is carried out surface treatment, then adopt plasma spraying Ni60A-ZrO2Coating carries out mould and remanufactures. Publication number disclosed in 25 days March in 2015 be disclosed in the Chinese invention patent application file of CN104451523A a kind of tire-mold remanufacture technique, by mould is carried out surface treatment, then adopt HVAF W-Cr-Co coating to carry out mould and remanufacture. But when mould is remanufactured by above-mentioned employing spraying method, spray-on coating and mould itself are physical bond, and interface bond strength is usually no more than 70MPa, and interface bond strength is low, in mold cold Thermal Cycling or when bearing greater impact power, the coating remanufactured easily is peeled off.
Publication number disclosed in December in 2014 24 days is the restorative procedure of a kind of automobile large-scale covering drawing die disclosed in the Chinese invention patent application file of CN104233238A, by mould is carried out surface treatment, then adopt chemical Ni-P plating to carry out mould and remanufacture. The surface abrasion of mould lost efficacy, and except overall wear also has the more heavy wear at local crowning position, the thickness of Electroless Ni-P Plating is thin, it is difficult to meet mould overall wear and demand is repaired in concentrated wear.
At present, domestic and international metal parts rapid shaping technique is mainly precinct laser fusion rapid molding technology (Selectivelasermelting, SLM). the basic functional principle of precinct laser fusion rapid molding equipment is: first utilize Pro/e on computers, UG, the 3D sculpting softwares such as CATIA design the three-dimensional entity model (i.e. three-dimensional stereo model) of part, then pass through Slice Software and this threedimensional model is carried out hierarchy slicing, obtain the outline data in each cross section, generated by outline data and fill scanning pattern, tile certain thickness powder in working cylinder, control according to computer, laser beam optionally melts fore-put powder layer by the mode of vibration mirror scanning according to the slicing treatment result of three-dimensional parts figure,Subsequently, working cylinder decline certain distance also spreads powder again, and laser beam completes the manufacture of next layer of parts under the drive of galvanometer again according to the 3-D graphic of parts; So repeat degradation operation under paving powder, scanning and working cylinder, thus realizing the manufacture of three-dimensional parts. Nowadays, precinct laser fusion rapid molding technology is primarily present following three aspect problems: the first, precinct laser fusion rapid molding technology needs protective atmosphere or vacuum environment, to avoid the oxidation of metal parts in forming process. This makes precinct laser fusion rapid molding device structure complicated, and forming part size is restricted, and energy source Optical Maser System price is high, and former is expensive; The second, precinct laser fusion rapid molding technology needs the moulding cylinder system of paving powder. This makes precinct laser fusion rapid molding device structure complicated, and not only forming part size is restricted, and shaping efficiency is relatively low; 3rd, in order to ensure part mechanical property, precinct laser fusion rapid molding technology needs the globular metallic powder of good fluidity. This makes precinct laser fusion rapid molding equipment operating cost significantly high.
It addition, metal parts rapid shaping technique also has electron beam rapid shaping technique. But at present, Selected area electron bundle rapid shaping technique is primarily present following three aspect problems: the first, electron beam rapid shaping technique needs vacuum environment, to form energy source electron beam and to avoid the oxidation of metal parts in forming process. This makes electron beam rapid forming equipment structure complicated, and forming part size is restricted, and former is expensive; The second, electron beam rapid shaping technique needs paving powder system or moulding material feed system. This makes electron beam rapid forming equipment structure complicated, and not only forming part size is restricted, and shaping efficiency is relatively low; 3rd, in order to ensure part mechanical property, electron beam rapid shaping technique needs the globular metallic powder of good fluidity. This makes precinct laser fusion rapid molding equipment operating cost significantly high.
Summary of the invention
The technical problem to be solved is in that for above-mentioned deficiency of the prior art, there is provided a kind of mould plasma 3D to print and remanufacture equipment, its simple in construction, reasonable in design and use easy and simple to handle, efficiency is high, result of use good, without airtight forming room, repair process directly carries out under atmospheric environment, repairs rear mold quality good.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of mould plasma 3D prints and remanufactures equipment, it is characterised in that: by monitoring system, plasma beam system of processing, treat machining set-up that repairing mould is machined out, the horizontal stamp pad placed for mould to be repaired and treat repairing mould and carry out interim fixing temporary fixing piece and form; Described machining tool is setting in above horizontal stamp pad; Described temporary fixing piece is laid on horizontal stamp pad;
Described plasma beam system of processing is by being provided with shower nozzle and for producing the plasma generator of beam-plasma, the print position adjusting apparatus that the position of described plasma generator is adjusted, providing the feeder of working gas for described plasma generator and for forming to the powder feeder sending into printed material in described plasma generator continuously, and described plasma generator is positioned at above horizontal stamp pad; Described feeder is connected with the air inlet opened on described plasma generator by air supply pipe; The powder flow paths of described powder circulation it is provided in described plasma generator, described powder flow paths with communicate inside the arc chamber in described plasma generator and it connects with described air inlet, the external port of described powder flow paths is powder inlet, and the powder feeding mouth of described powder feeder is connected with powder inlet by powder feeding pipe; Horizontally moving device that described print position adjusting apparatus includes driving described plasma generator to move in the horizontal plane and drive described plasma generator and described horizontally moving device synchronizing moving and tackle the printing distance adjusting means that the distance between the outlet of described shower nozzle and horizontal stamp pad is adjusted mutually, described plasma generator is arranged on described horizontally moving device, and described horizontally moving device is arranged in described printing distance adjusting means;
Described monitoring system includes moving horizontally controller to what described horizontally moving device was controlled, described plasma beam system of processing Working position place temperature on mould to be repaired is carried out the temperature detecting unit of detection in real time, the distance detection unit that distance between outlet and the horizontal stamp pad of described shower nozzle is carried out detection in real time and the printing distance regulable control device that described printing distance adjusting means is controlled, the described controller that moves horizontally is connected with described horizontally moving device, the described distance regulable control device that prints is connected with described printing distance adjusting means, described temperature detecting unit and distance detection unit are all connected apart from regulable control device with printing,Described temperature detecting unit forms temperature control device with printing distance regulable control device.
Above-mentioned a kind of mould plasma 3D prints and remanufactures equipment, it is characterized in that: described mould to be repaired is the mould that there is local defect and/or surface abrasion defect, described local defect is there is damaged or cracking in the forming surface of mould to be repaired, and the forming surface that described surface abrasion defect is mould to be repaired exists abrasion; Being provided above of described horizontal stamp pad treats ultrasonic detection device or the three-dimensional laser scanner that the defect existed on repairing mould carries out detecting.
Above-mentioned a kind of mould plasma 3D prints and remanufactures equipment, it is characterized in that: described powder feeder includes the shell that top has charging aperture and the powder feeding wheel being arranged in described shell, and described powder feeding wheel is driven by drive motor; Described powder feeding mouth is positioned at described outer casing underpart;
Detection of gas flow rate unit that plasma generator controller that described monitoring system also includes described plasma generator is controlled, gas flow to air supply pipe carry out detection in real time and the gas flow controller that the flow control valve installed on air supply pipe is controlled, described plasma generator controller is connected with described plasma generator, and described detection of gas flow rate unit is connected with gas flow controller.
Above-mentioned a kind of mould plasma 3D prints and remanufactures equipment, it is characterized in that: described plasma generator includes plasma gun, and described shower nozzle is the anode nozzle of plasma gun front end; Described plasma gun includes having the gun body of described air inlet, being positioned at the anode nozzle of gun body dead ahead and be plugged in the negative electrode of gun body, described anode nozzle is positioned on front side of negative electrode, described arc chamber is positioned on front side of negative electrode and it is positioned at the posterior medial of anode nozzle, and the front inner of described anode nozzle is spout.
Above-mentioned a kind of mould plasma 3D prints and remanufactures equipment, it is characterized in that: described anode nozzle, negative electrode and arc chamber are all laid in coaxial with gun body; Described powder flow paths and the inclined laying of gun body and its front end stretch in spout, described powder flow paths be straight channel and it include the back side walkway being laid in gun body and the front side channel being laid in anode nozzle.
Above-mentioned a kind of mould plasma 3D prints and remanufactures equipment, it is characterized in that: the angle between central axis and the vertical plane of the beam-plasma that described plasma generator produces is not more than 45 ��; Described printing distance adjusting means is the adjusting apparatus up and down described shower nozzle adjusted up and down along the central axis of described beam-plasma, and described distance detection unit is to the distance detection device carrying out detection in real time along the central axis of described beam-plasma from the distance exported between horizontal stamp pad of described shower nozzle;
Described horizontal stamp pad is be arranged on stamp pad position regulator and the mobile platform that can move up and down;
Described monitoring system also includes the position adjustment controller that described stamp pad position regulator is controlled, and described position adjustment controller is connected with described stamp pad position regulator.
Meanwhile, the invention discloses the mould plasma 3D that a kind of method step is simple, reasonable in design and realization is convenient, result of use is good and print reproducing method, it is characterised in that: the method comprises the following steps:
Step one, mold defect detect: be first positioned on horizontal stamp pad by mould to be repaired, and make the forming surface of mould to be repaired upward; Treat the defect existed on repairing mould again to detect, and the position detecting each defect is recorded respectively;
The defect existed on described mould to be repaired is local defect and/or surface abrasion defect, and described local defect is there is damaged or cracking in the forming surface of mould to be repaired, and the forming surface that described surface abrasion defect is mould to be repaired exists abrasion;
Step 2, mould repair: adopting described mould plasma 3D to print and remanufacture equipment, the defect that the mould to be repaired detected in step one exists is repaired respectively, process is as follows:
Step 201, local defect reparation judge: according to the mold defect testing result in step one, judge whether to carry out local defect reparation: when step one detects there is described local defect in mould to be repaired time, repairing mould need to be treated and carry out local defect reparation, and enter step 202; Otherwise, step 203 is entered;
Step 202, local defect reparation: according to the mold defect testing result in step one, treat each local defect existed on repairing mould and repair respectively, until completing the repair process of all local defects existed on mould to be repaired;
On described mould to be repaired, the restorative procedure of all local defects is all identical; Treat any one the described local defect existed on repairing mould when repairing, comprise the following steps:
Step 2021, rejected region are removed: adopt described machining set-up to treat region residing for current repaired local defect on repairing mould and be removed, it is thus achieved that the to be filled region corresponding with current repaired local defect;
Step 2022, plasma 3D print: adopt described plasma beam system of processing, region to be filled described in step 2021 is carried out plasma 3D printing, complete the repair process of current repaired local defect;
Step 203, surface abrasion defect repair judge: according to the mold defect testing result in step one, judge whether to carry out surface abrasion defect repair: when step one detects there is surface abrasion defect in mould to be repaired time, repairing mould need to be treated and carry out surface abrasion defect repair, and enter step 204; Otherwise, what complete mould to be repaired remanufactures process;
Step 204, surface abrasion defect repair: according to the mold defect testing result in step one, adopt described plasma beam system of processing, and the eroded area treated in the forming surface of repairing mould is repaired, and what complete mould to be repaired remanufactures process.
Above-mentioned plasma 3D that mould is carried out prints the method remanufactured, it is characterized in that: when carrying out mold defect detection in step one, ultrasonic detection device or three-dimensional laser scanner that the horizontal stamp pad of employing is provided above are treated the defect existed on repairing mould and are detected;
After step 2 completes mould repair, it is thus achieved that repair rear mold; Afterwards, adopt machining set-up that described reparation rear mold is carried out polish.
Above-mentioned plasma 3D that mould is carried out prints the method remanufactured, and it is characterized in that: when carrying out surface abrasion defect repair in step 204, process is as follows:
Step 2041, three-dimensional stereo model obtain and hierarchy slicing processes: adopt described data handling equipment and call the three-dimensional stereo model of eroded area in the forming surface of described image processing module acquisition mould to be repaired, recall the hierarchy slicing module three-dimensional stereo model to described eroded area and carry out hierarchy slicing, and obtain multiple layering cross-sectional image;
Multiple described layering cross-sectional images are the image obtaining multiple layering cross section after the three-dimensional stereo model to described eroded area carries out hierarchy slicing, and multiple described layering cross sections are uniformly laid from the inside to the outside;
Step 2042, scanning pattern are filled: adopt data handling equipment and call described image processing module, described layering cross-sectional images multiple in step 2041 are respectively processed, and complete the scanning pattern filling process in multiple described layering cross section, it is thus achieved that the scanning pattern in multiple described layering cross sections;
Step 2043, printing path obtain: the described data handling equipment scanning pattern according to the multiple described layering cross section obtained in step 2042, it is thus achieved that the printing path in multiple described layering cross sections;The printing path in each described layering cross section is all identical with the scanning pattern in this layering cross section;
Step 2044, from the bottom to top successively printing: the printing path according to the multiple described layering cross section obtained in step 2043, successively described eroded area is printed from the bottom to top, make described eroded area be filled with by multiple shape layers stacking from the bottom to top; The quantity of described shape layer is identical with the quantity being layered cross section described in step one, the installation position of multiple described shape layers is all identical with the installation position one_to_one corresponding in multiple described layering cross sections and its thickness respectively, distance between the thickness of described shape layer with adjacent two described layering cross sections is identical, the printing path of the printing path in multiple described layering cross sections respectively multiple described shape layers in step 3; When described eroded area is printed, process is as follows:
Step 401, bottom print: described in move horizontally the controller printing path according to current institute printing shaping layer acquired in step 2043, described horizontally moving device is controlled and drives described plasma generator to move in the horizontal plane; In described plasma generator moving process, the interior plasma beam with molten melt drop is sprayed onto on mould to be repaired by described plasma beam system of processing continuously; After sprayed molten melt drop all solidifies, complete the print procedure of current institute printing shaping layer;
In this step, current institute printing shaping layer is the shape layer being positioned at bottommost in multiple described shape layer;
Step 402, last layer print, and comprise the following steps:
Step 4021, printing are apart from regulating: horizontal stamp pad in the vertical direction is once moved down and moved down highly identical with the thickness of described shape layer, or drive described plasma generator in the vertical direction once to move up and move up highly identical with the thickness of described shape layer by printing apart from the regulable control device described printing distance adjusting means of control;
Step 4022, print and synchronize temperature control: described in move horizontally the controller printing path according to current institute printing shaping layer acquired in step 3, described horizontally moving device is controlled and drives described plasma generator to move in the horizontal plane; In described plasma generator moving process, the interior plasma beam with molten melt drop is sprayed onto on the upper surface of the current printed described shape layer of the next one by described plasma beam system of processing continuously; After sprayed molten melt drop all solidifies, complete the print procedure of current institute printing shaping layer;
In this step, in described plasma generator moving process, carry out detecting in real time and by detected temperature information synchronous driving to printing distance regulable control device to the upper surface temperature of the current printed described shape layer of the next one by temperature detecting unit, detect the distance between unit outlet and horizontal stamp pad to described shower nozzle by distance simultaneously and carry out detection in real time and by the range information synchronous driving detected to printing apart from regulable control device; Described print temperature information that distance regulable control device detects according to temperature detecting unit and be adjusted by controlling the distance between described printing distance adjusting means outlet and horizontal stamp pad to described shower nozzle, making 0.6 times of the upper surface temperature of the currently printed described shape layer of the next one material fusing point not higher than described printed material;
In plasma generator moving process described in step 401 and step 4022, described printed material is delivered in described plasma generator by described powder feeder continuously, and the printed material sent in described plasma generator is sent in described plasma generator in the beam-plasma of generation and is molten into molten melt drop under the effect of described working gas, described molten melt drop is uniformly distributed in described beam-plasma, and forms the interior plasma beam with molten melt drop; Described printed material is dusty material;
Step 403, repeatedly repetition step 402, until completing the print procedure of all shape layers of described eroded area.
Above-mentioned plasma 3D that mould is carried out prints the method remanufactured, and it is characterized in that: adopt described plasma beam system of processing in step 2022, and when region to be filled described in step 2021 carries out plasma 3D printing, process is as follows:
Step A, three-dimensional stereo model obtain and hierarchy slicing processes: the three-dimensional stereo model according to the mould finished product of mould to be repaired (3), adopt data handling equipment and call the three-dimensional stereo model in the described region to be filled of image processing module acquisition, recall the hierarchy slicing module three-dimensional stereo model to described region to be filled and carry out hierarchy slicing, and obtain multiple layering cross-sectional image;
In this step, multiple described layering cross-sectional images are the image obtaining multiple layering cross section after the three-dimensional stereo model to described region to be filled carries out hierarchy slicing, and multiple described layering cross sections are uniformly laid from the bottom to top;
Step B, scanning pattern are filled: adopt data handling equipment and call described image processing module, described layering cross-sectional images multiple in step A are respectively processed, and complete the scanning pattern filling process in multiple described layering cross section, it is thus achieved that the scanning pattern in multiple described layering cross sections;
Step C, printing path obtain: the described data handling equipment scanning pattern according to the multiple described layering cross section obtained in step B, it is thus achieved that the printing path in multiple described layering cross sections; The printing path in each described layering cross section is all identical with the scanning pattern in this layering cross section;
Step D, from the bottom to top successively printing: the printing path according to the multiple described layering cross section obtained in step C, successively described region to be filled is printed from the bottom to top, make described region to be filled be filled with by multiple shape layers stacking from the bottom to top; The quantity of described shape layer is identical with the quantity being layered cross section described in step A, the installation position of multiple described shape layers is all identical with the installation position one_to_one corresponding in multiple described layering cross sections and its thickness respectively, distance between the thickness of described shape layer two described layering cross sections adjacent with step A is identical, the printing path of multiple described shape layers in the printing path in multiple described layering cross sections respectively described region to be filled in step C; In described region to be filled, the Method of printing of multiple described shape layers is all identical; When described region to be filled is printed, process is as follows:
Step D1, bottom print: described in move horizontally the controller printing path according to current institute printing shaping layer acquired in step C, described horizontally moving device is controlled and drives described plasma generator to move in the horizontal plane; In described plasma generator moving process, the interior plasma beam with molten melt drop is sprayed onto in described region to be filled by described plasma beam system of processing continuously; After sprayed molten melt drop all solidifies, complete the print procedure of current institute printing shaping layer in described region to be filled;
In this step, current institute printing shaping layer is the shape layer being positioned at bottommost in described region to be filled in multiple described shape layers;
Step D2, last layer print, and comprise the following steps:
Step D21, printing are apart from regulating: horizontal stamp pad in the vertical direction is once moved down and moved down highly identical with the thickness of described shape layer, or drive described plasma generator in the vertical direction once to move up and move up highly identical with the thickness of described shape layer by printing apart from the regulable control device described printing distance adjusting means of control;
Step D22, printing and synchronize temperature control: described in move horizontally the controller printing path according to current institute printing shaping layer acquired in step C, described horizontally moving device is controlled and drives described plasma generator to move in the horizontal plane; In described plasma generator moving process, the interior plasma beam with molten melt drop is sprayed onto on the upper surface of the current printed described shape layer of the next one by described plasma beam system of processing continuously; After sprayed molten melt drop all solidifies, complete the print procedure of current institute printing shaping layer;
In this step, in described plasma generator moving process, carry out detecting in real time and by detected temperature information synchronous driving to printing distance regulable control device to the upper surface temperature of the described shape layer of the next one current printed in described region to be filled by temperature detecting unit, detect the distance between unit outlet and horizontal stamp pad to described shower nozzle by distance simultaneously and carry out detection in real time and by the range information synchronous driving detected to printing apart from regulable control device; Described print temperature information that distance regulable control device detects according to temperature detecting unit and be adjusted by controlling the distance between described printing distance adjusting means outlet and horizontal stamp pad to described shower nozzle, making 0.6 times of the upper surface temperature of the currently printed described shape layer of the next one material fusing point not higher than described printed material;
In plasma generator moving process described in step D1 and step D22, described printed material is delivered in described plasma generator by described powder feeder continuously, and the printed material sent in described plasma generator is sent in described plasma generator in the beam-plasma of generation and is molten into molten melt drop under the effect of described working gas, described molten melt drop is uniformly distributed in described beam-plasma, and forms the interior plasma beam with molten melt drop;
Step D3, repeatedly repetition step D2, until completing the print procedure of all shape layers in described region to be filled.
The present invention compared with prior art has the advantage that
1, it is convenient that the mould plasma 3D that adopts prints and remanufactures that device structure is simple, reasonable in design and input cost is relatively low, processing and fabricating and installing is laid.
2, the mould plasma 3D adopted prints and remanufactures equipment without airtight forming room, and does not need protective atmosphere or vacuum environment, and repair process (namely remanufactures process) directly to carry out under atmospheric environment. Thus, structure is very simple, and it is unrestricted to remanufacture accessory size, and equipment price is relatively low.
3, mould plasma 3D prints the printed material supply of the equipment that remanufactures in energy source beam-plasma (the drop plasma beam of material), the moulding cylinder system that need not spread powder need not spread powder system, only needing a powder feeder, structure significantly simplifies.
4, the mould plasma 3D printing adopted remanufactures equipment easy and simple to handle, the intelligence degree of use and efficiency is high, result of use is good, and institute's mould quality is good. The distance moving horizontally controller, printing position temperature being carried out between the temperature detecting unit of detection in real time, outlet and the horizontal stamp pad to shower nozzle that the monitoring system adopted includes that horizontally moving device is controlled carries out the real-time distance detected detection unit and to printing the printing distance regulable control device that distance adjusting means is controlled, printing and be connected with printing distance adjusting means apart from regulable control device, temperature detecting unit and distance detection unit are all connected apart from regulable control device with printing; Temperature detecting unit forms temperature control device with printing distance regulable control device.
In actually used process, printing distance regulable control device in temperature control device is controlled printing distance adjusting means according to the detected information of temperature detecting unit, make to print distance energy Automatic adjusument, so can prevent because printing the problem that hypotelorism causes the shape layer printed to occur fusing again, and the formed precision caused because of printing hypertelorism also can be prevented relatively low, there is the problems such as solidification before a printable layer outer surface in molten melt drop on being sprayed onto, make forming process easily controllable, and realize conveniently, can effectively prevent the surface of mould surface from aoxidizing simultaneously, because of without arranging airtight vacuum environment.It addition, the monitoring system adopted also includes gas flow Automatic adjusument and powder mass flow Automatic adjusument function, intelligence degree is high.
5, mould plasma 3D prints the energy source remanufacturing equipment employing is beam-plasma, and beam-plasma power is up to tens of kilowatt, energy molten ceramic material, it is achieved the plasma casting rapid shaping of metal, ceramic metal and ceramic part. Producing plasma generator (specifically plasma gun) simple in construction of beam-plasma, operation expense is low, and plasma casting rapid forming equipment cost is low.
6, mould plasma 3D prints the drop remanufacturing equipment institute printed material in plasma beam; beam-plasma itself has protective effect; add the effect of working gas; can effectively prevent the oxidation of printed material; this equipment does not need protective atmosphere or vacuum environment; directly use under atmospheric environment, the advantage such as have that device structure is simple, operating cost is low, to remanufacture accessory size unrestricted.
7, mould plasma 3D prints and remanufactures equipment employing direct current generator drive powder wheel rotation and deliver in beam-plasma by working gas auxiliary by powder, can use a powder or prilling powder, it is not necessary to spherical powder. This equipment printed material cost is low.
8, when mould plasma 3D printing remanufactures equipment printing, materials behavior is become solid-state by settable liquid, and technical process simplifies, and reduces the 3D technology difficulty printed and cost. Simultaneously, under the effect of working gas (beam-plasma includes unionized working gas), powder enters in beam-plasma, and accelerate in described beam-plasma, heat and be fused into molten condition and form small drop, this drop sprays in the lump with beam-plasma, forms the interior plasma beam with molten melt drop; After the molten melt drop that powder is formed after fusing sprays with beam-plasma, formed by the microstream of the molten melt drop being evenly distributed with printed material, form casting type molding, the rounded constrictions phenomenon produced when avoiding molten drop cooled and solidified molding, part mechanical property is high, smooth surface, reduces the technology difficulty of rapid shaping.
9, adopted mould plasma 3D print remanufacture functions of the equipments comprehensively and use easy and simple to handle, occupation mode flexible, and has defects detection and machining function. This equipment less costly, in adopted plasma beam system of processing, plasma gun price is low, change, maintenance cost low, and use cost is low. Adopt the local defect that the present invention can treat repairing mould to carry out printing to remanufacture, it is also possible to die surface wear-out defect is carried out printing and remanufactures, additionally it is possible to carry out polish to printing the mould remanufactured, make the mould that printing remanufactures be directly used in production.
10, the mould plasma 3D printing reproducing method adopted is simple, reasonable in design and realization is convenient, result of use is good, and the local defect that mould exists and surface abrasion defect can carry out simplicity, quick and high-quality reparation.
11, the plasma 3D Method of printing step of adopted plasma beam system of processing simple, reasonable in design and realize convenient, result of use is good, improved by plasma gun structure and powder is sent directly in beam-plasma and makes powder smelting, the drop plasma beam of formation institute printed material. Beam-plasma has protective effect, it is not necessary to protective atmosphere or vacuum environment, directly prints under atmospheric environment. Further, printed material supplies in energy source beam-plasma (the drop plasma beam of material), it is not necessary to the moulding cylinder system of paving powder.It addition, adopt direct current generator drive powder wheel to rotate and deliver in beam-plasma by working gas auxiliary by powder, a powder or prilling powder can be used, it is not necessary to spherical powder. During printing, materials behavior is become solid-state by settable liquid, and technical process simplifies, and reduces the 3D technology difficulty printed and cost, and it is no longer size-limited to print part. As shown in the above, traditional plasma surfacing method is substantially improved by the present invention, the generally individually plasma arc voltage Height-adjusting device that is provided with of existing plasma surfacing method, and the distance of plasma gun and surface of the work is not more than 15mm, and the scope of application is limited. And in the present invention, print distance can on a large scale in be adjusted, adapting to unlike material prints demand, and can be effectively ensured workpiece (i.e. mould) Forming Quality.
Adopt energy efficient solution of the present invention to determine the problems referred to above that precinct laser fusion rapid molding technology and electron beam rapid shaping technique exist, and provide a kind of brand-new mould reproducing method for mould, can effectively solve the various problems that existing laser cladding method exists, have that efficiency height, Forming Quality be good, between printing shaping layer and mould to be repaired, bonding strength is high, repair the advantages such as rear mold quality is good.
12, the printed material material of similar nature (namely identical with mould material therefor or) fusing in beam-plasma forms drop, beam-plasma has protection and purification effect, it is to avoid material contamination, and mold performance is stable; Further, printed material in beam-plasma and beam-plasma power high, fusing is fully, in printed material layering print procedure, droplet solidification speed is fast, and material grains is tiny, without causing element segregation, the performance remanufacturing mould is good, does not have cracking and even scraps phenomenon; When adopting print die of the present invention, in next layer of printed material print procedure, last layer printed material can be carried out synchronizing heat treatment by plasma beam, thermal stress is little, not havinging micro-crack or cracking, yield rate can reach absolutely, thus remanufactures the function admirable of mould; When adopting the present invention to remanufacture mould, technical process is simple, and technological process is short, and equipment cost is low, compared with existing mold reproducing method, reduces technology difficulty and cost. Owing to beam-plasma power is high, printing remanufactures process control, different metal, ceramic metal or ceramic powders can being selected to carry out printing and remanufacture for different moulds, it is unrestricted that selected printing remanufactures material, remanufactures material and mold materials similar nature; Remanufacturing it is also possible to carry out the printing of high performance material for position easy to wear, improve service life further, plasma 3D prints that the mould designability remanufactured is strong, technique is simple, stable and reliable for performance. It addition, plasma beam system of processing disclosed in this invention can directly use under atmospheric environment, during molding, printed material can be fused into liquid stream, realize continuous micro-casting rapid shaping, technical process simplifies, and reduces technology difficulty and cost that traditional moulds manufactures, improves the performance of mould.
13, printing and remanufacture process and can carry out under atmospheric environment, the handling treating repairing mould are easy, and remediation efficiency is high. Adopt the present invention can effectively reduce technology difficulty and the cost that traditional moulds remanufactures, improve the efficiency and performance that remanufacture mould, and printing can be remanufactured mould and carry out polish, enable to directly apply in production.
Below by drawings and Examples, technical scheme is described in further detail.
Accompanying drawing explanation
Fig. 1 is the inventive die plasma 3D structural representation printing the equipment that remanufactures.
Fig. 2 is the structural representation of plasma gun in the embodiment of the present invention 1.
Fig. 3 is the schematic block circuit diagram that the present invention monitors system.
Fig. 4 is the structural representation of air inlet ring of the present invention.
Fig. 5 is the structural representation of air inlet ring body of the present invention.
Fig. 6 is the inventive die plasma 3D FB(flow block) printing reproducing method.
Fig. 7 is the structural representation of plasma gun in the embodiment of the present invention 2.
Description of reference numerals:
1 feeder; 2 powder feeders; 3 moulds to be repaired;
4 horizontal stamp pads; 5 air supply pipes; 6 powder feeding pipe;
7 plasma generator controllers; 8 distance detection unit; 9 temperature detecting units;
10 print distance regulable control device; 11 detection of gas flow rate unit;
12 gas flow controllers; 13 plasma guns; 13-1 gun body;
13-2 anode nozzle; 13-3 negative electrode; 13-4 arc chamber;
13-5 spout; 13-6 insulating barrier; 14 powder flow paths;
15 position adjustment controllers; 16 three axis numerically controlled machines; About 17 adjusting apparatus;
18 powder mass flow detection unit; 19 drive motors; 20 powder feeding flow controllers;
21 air inlet rings; 21-1 air inlet ring body; 21-2 annular sealing cover;
21-3 annular air inlet duct; Air inlet outside 21-4; Air inlet inside 21-5;
22 powder inlets; 23 PCs; 24 move horizontally controller;
24-1 X-axis travel mechanism; 24-2 Y-axis moving mechanism;
25 flow control valves; 27 machining set-ups; 28 ultrasonic detection devices;
29 3 axle travel mechanisms.
Detailed description of the invention
Embodiment 1
A kind of mould plasma 3D as shown in Figure 1 prints and remanufactures equipment, by monitoring system, plasma beam system of processing, treat machining set-up 27 that repairing mould 3 is machined out, the horizontal stamp pad 4 placed for mould 3 to be repaired and treat repairing mould 3 and carry out interim fixing temporary fixing piece and form; Described machining set-up 27 is positioned at above horizontal stamp pad 4; Described temporary fixing piece is laid on horizontal stamp pad 4.
Described plasma beam system of processing is by being provided with shower nozzle and for producing the plasma generator of beam-plasma, the print position adjusting apparatus that the position of described plasma generator is adjusted, providing the feeder 1 of working gas for described plasma generator and for forming to the powder feeder 2 sending into printed material in described plasma generator continuously, and described plasma generator is positioned at above horizontal stamp pad 4. Described feeder 1 is connected with the air inlet opened on described plasma generator by air supply pipe 5. The powder flow paths 14 of described powder circulation it is provided in described plasma generator, described powder flow paths 14 with communicate inside the arc chamber 13-4 in described plasma generator and it connects with described air inlet, the external port of described powder flow paths is powder inlet 22, and the powder feeding mouth of described powder feeder 2 is connected with powder inlet 22 by powder feeding pipe 6; Horizontally moving device that described print position adjusting apparatus includes driving described plasma generator to move in the horizontal plane and drive described plasma generator and described horizontally moving device synchronizing moving and tackle the printing distance adjusting means that the distance between the outlet of described shower nozzle and horizontal stamp pad 4 is adjusted mutually, described plasma generator is arranged on described horizontally moving device, and described horizontally moving device is arranged in described printing distance adjusting means. Described printed material is dusty material (i.e. powder).
As shown in Figure 3, what described monitoring system included described horizontally moving device is controlled moves horizontally controller 24, described plasma beam system of processing Working position place temperature on mould 3 to be repaired is carried out the temperature detecting unit 9 of detection in real time, the distance detection unit 8 that distance between outlet and the horizontal stamp pad 4 of described shower nozzle is carried out detection in real time and the printing distance regulable control device 10 that described printing distance adjusting means is controlled, the described controller 24 that moves horizontally is connected with described horizontally moving device, the described distance regulable control device 10 that prints is connected with described printing distance adjusting means, described temperature detecting unit 9 and distance detection unit 8 are all connected apart from regulable control device 10 with printing, described temperature detecting unit 9 forms temperature control device with printing distance regulable control device 10.
In the present embodiment, described temporary fixing piece is clamping device (being not drawn in Fig. 1). Time actually used, described temporary fixing piece can also adopt other temporary securing mechanism such as fixture.
In the present embodiment, described temperature detecting unit 9 is that described plasma beam system of processing Working position place on mould 3 to be repaired (i.e. print position place or repair position) temperature is carried out the infrared temperature sensor of detection in real time. Described distance detection unit 8 is laser range sensor.
When actual laying is installed, described temperature detecting unit 9 is positioned at above mould 3 to be repaired. In the present embodiment, described temperature detecting unit 9 is positioned at the surface of mould 3 to be repaired.
In the present embodiment, described mould to be repaired 3 is the mould that there is local defect and/or surface abrasion defect, described local defect is there is damaged or cracking in the forming surface of mould 3 to be repaired, and the forming surface that described surface abrasion defect is mould 3 to be repaired exists abrasion.
Time actually used, being provided above of described horizontal stamp pad 4 treats ultrasonic detection device 28 or the three-dimensional laser scanner that the defect existed on repairing mould 3 carries out detecting.
During actual installation, described machining set-up 27 is installed in same three axle travel mechanisms 29, described three axle travel mechanisms 29 can drive ultrasonic detection device 28 and machining set-up 27 to synchronize the travel mechanism moved in X-axis, Y-axis and Z-direction, as three axle mobile platforms, three-dimensional mechanical hand, three axles regulate support, gimbal etc. In the present embodiment, described three axle travel mechanisms 29 are positioned at above horizontal stamp pad 4.
In the present embodiment, described three axle travel mechanisms 29 are that three axles regulate support, described three axles regulate supports include base, the Z axis regulating arm being arranged on described base, the X-axis regulating arm being arranged on described Z axis regulating arm and the Y-axis regulating arm that is arranged on described X-axis regulating arm, described Y-axis regulating arm is provided with a vertical mounting rod, and described machining set-up 27 is arranged on described vertical mounting rod.
During actual installation, described ultrasonic detection device 28 or three-dimensional laser scanner can also be arranged in three axle travel mechanisms 29, and are arranged on described vertical mounting rod.
In the present embodiment, X-axis travel mechanism 24-1 that described horizontally moving device includes driving described plasma generator to carry out in the X-axis direction moving horizontally and drive described plasma generator to carry out the Y-axis moving mechanism 24-2 moved horizontally in the Y-axis direction, thus described horizontally moving device is X-Y shaft moving device.
Further, described plasma generator is arranged on Y-axis moving mechanism 24-2, and described Y-axis moving mechanism 24-2 is arranged on X-axis travel mechanism 24-1, and described X-axis travel mechanism 24-1 is arranged in described printing distance adjusting means.In actually used process, described plasma generator is driven to move horizontally in the Y-axis direction by Y-axis moving mechanism 24-2, driven by X-axis travel mechanism 24-1 that Y-axis moving mechanism 24-2 is Tong Bu with described plasma generator moves horizontally in the X-axis direction, and described horizontally moving device is Tong Bu with described plasma generator moves on the central axis of described beam-plasma by the drive of described printing distance adjusting means.
In the present embodiment, (specifically plasma gun 13 carries out the mechanical hand of three-dimensional motion for described Y-axis moving mechanism 24-2, X-axis travel mechanism 24-1 and the described printing distance adjusting means composition described plasma generator of drive.
In the present embodiment, detection of gas flow rate unit 11 that plasma generator controller 7 that described monitoring system also includes described plasma generator is controlled, gas flow to air supply pipe 5 carry out detection in real time and the gas flow controller 12 that the flow control valve 25 installed on air supply pipe 5 is controlled, described plasma generator controller 7 is connected with described plasma generator, and described detection of gas flow rate unit 11 is connected with gas flow controller 12.
In the present embodiment, as in figure 2 it is shown, described plasma generator includes plasma gun 13, described shower nozzle is the anode nozzle 13-2 of plasma gun 13 front end; Described plasma gun 13 includes having the gun body 13-1 of described air inlet, being positioned at the anode nozzle 13-2 of gun body 13-1 dead ahead and be plugged in the negative electrode 13-3 of gun body 13-1, described anode nozzle 13-2 is positioned on front side of negative electrode 13-3, described arc chamber 13-4 is positioned on front side of negative electrode 13-3 and it is positioned at the posterior medial of anode nozzle 13-2, and the front inner of described anode nozzle 13-2 is spout 13-5.
Time actually used, described plasma gun 13 is arranged on Y-axis moving mechanism 24-2.
Time actually used, described horizontally moving device may also be only and drives described plasma generator to carry out the X-axis travel mechanism 24-1 moved horizontally in the X-axis direction. Now, described plasma gun 13 is arranged on X-axis travel mechanism 24-1.
In the present embodiment, described anode nozzle 13-2, negative electrode 13-3 and arc chamber 13-4 all lay in coaxial with gun body 13-1; Described powder flow paths 14 stretches in spout 13-5 with the inclined laying of gun body 13-1 and its front end, described powder flow paths 14 be straight channel and it include the back side walkway being laid in gun body 13-1 and the front side channel being laid in anode nozzle 13-2.
Further, described air inlet is positioned on rear side of gun body 13-1, and described spout 13-5 and gun body 13-1 lays in coaxial or lay in coaxial with powder flow paths 14.
In the present embodiment, between described anode nozzle 13-2 and gun body 13-1, it is provided with insulating barrier 13-6.
In the present embodiment, as in figure 2 it is shown, described spout 13-5 and gun body 13-1 lays in coaxial.
In the present embodiment, described air supply pipe 5 is connected with the air inlet opened on described plasma generator by air inlet ring 21. Further, uniformly supplied in described plasma generator by air inlet ring 21.
Such as Fig. 4, shown in Fig. 5, described air inlet ring 21 be annular and it include air inlet ring body 21-1 and lid be contained on air inlet ring body 21-1 annular sealing cover 21-2, described air inlet ring body 21-1 has an annular air inlet duct 21-3 on annular and its medial wall, described air inlet ring body 21-1 has an outside air inlet 21-4 connected with air supply pipe 5 and its inside have multiple inner side air inlet 21-5, multiple described inner side air inlet 21-5 along the circumferential direction uniformly lay and it is respectively positioned on inside annular air inlet duct 21-3, described outside air inlet 21-4 is positioned at outside annular air inlet duct 21-3, described outside air inlet 21-4 and multiple described inner side air inlet 21-5 all communicates with inside annular air inlet duct 21-3.
Further, described gun body 13-1 along the circumferential direction has multiple respectively with multiple described inner side air inlet 21-5 gun body air inlet communicated.
Time actually used, described powder flow paths 14 can also adopt same passage with the inlet channel of described working gas.
In the present embodiment, the meal outlet of described powder flow paths 14 is positioned on front side of arc chamber 13-4 and it is positioned at the inner back side of spout 13-5.
In plasma gun 13 use procedure as shown in Figure 2, producing plasma in described arc chamber 13-4, produced plasma forms beam-plasma and sprays through spout 13-5; Meanwhile, described powder is tilted towards entering spout 13-5 by powder flow paths 14, and described powder enters in described beam-plasma under the effect of described working gas, and accelerate in described beam-plasma, heat and be fused into molten condition and form small drop, this drop sprays in the lump with beam-plasma, forms the interior plasma beam with molten melt drop; After the molten melt drop that powder is formed after fusing sprays with beam-plasma, formed by the microstream of the molten melt drop being evenly distributed with printed material. Thus, described printed material is powder, to the shape of powder without particular/special requirement.
In the present embodiment, described working gas is noble gas or H2Gas.
Wherein, noble gas is Ar gas, He gas and N2Gas.
In the present embodiment, described horizontal stamp pad 4 is be arranged on stamp pad position regulator and the mobile platform that can move up and down.
Described monitoring system also includes the position adjustment controller 15 that described stamp pad position regulator is controlled, and described position adjustment controller 15 is connected with described stamp pad position regulator.
In the present embodiment, described stamp pad position regulator is three axis numerically controlled machine 16.
Further, described position adjustment controller 15 is the controller of three axis numerically controlled machine 16.
Time actually used, described stamp pad position regulator can also adopt other can complete the device of X, Y and the motion of three directions of Z axis or can the vertically movable device that moves up and down of in the vertical direction.
In actually used process, described horizontal stamp pad 4 can also adopt the fixed fixed platform in position.
In actually used process, the angle between central axis and the vertical plane of the beam-plasma that described plasma generator produces is not more than 45 ��; Described printing distance adjusting means is adjusting apparatus 17 up and down described shower nozzle adjusted up and down along the central axis of described beam-plasma, and described distance detection unit 8 be to the distance detection device carrying out from the distance exported between horizontal stamp pad 4 of described shower nozzle detecting in real time along the central axis of described beam-plasma.
In the present embodiment, described upper and lower adjusting apparatus 17 is Z-direction adjusting apparatus.
Further, described upper and lower adjusting apparatus 17 is telescopic hydraulic cylinder.
In the present embodiment, the central axis of the beam-plasma that described plasma generator produces is in vertically to laying. Time actually used, can according to specific needs, the angle between central axis and the vertical plane of the beam-plasma that described plasma generator produces be adjusted accordingly.
In the present embodiment, described powder feeder 2 includes the shell that top has charging aperture and the powder feeding wheel being arranged in described shell, and described powder feeding wheel is driven by drive motor 19; Described powder feeding mouth is positioned at described outer casing underpart.
As shown in Figure 3, described monitoring system also includes the powder mass flow detection unit 18 that the powder feeding flow of powder feeding pipe 6 carries out detection in real time and the powder feeding flow controller 20 that drive motor 19 is controlled, and described powder mass flow detection unit 18 is connected with powder feeding flow controller 20.
In the present embodiment, described drive motor 19 is direct current generator. In actually used process, by changing the rotating speed of described direct current generator, the powder feeding flow of powder feeding pipe 6 is carried out simplicity, quickly adjusts.
In the present embodiment, described monitoring system also includes the displacement in X-axis, Y-axis and Z-direction of the horizontal stamp pad 4 carries out the first displacement detecting unit of detection, the second displacement detecting unit and triple motion detection unit respectively in real time, and described first displacement detecting unit, the second displacement detecting unit and triple motion detection unit are all connected with position adjustment controller 15.
In the present embodiment, described monitoring system also includes respectively to Y-axis moving mechanism 24-2 horizontal displacement in the Y-axis direction, carry out the 4th displacement detecting unit of detection, the 5th displacement detecting unit and the 6th displacement detecting unit in real time to X-axis travel mechanism 24-1 horizontal displacement in the X-axis direction with to the displacement in the Z-axis direction of upper and lower adjusting apparatus 17, described 4th displacement detecting unit and the 5th displacement detecting unit all with move horizontally controller 24 and be connected, described 6th displacement detecting unit is connected with printing distance regulable control device 10.
In the present embodiment, described plasma generator controller 7, gas flow controller 12, position adjustment controller 15, printing distance regulable control device 10, powder feeding flow controller 20 and move horizontally controller 24 and all connect with described data handling equipment, described data handling equipment is PC 23. Described feeder 1 is carried out on off control by PC 23.
In the present embodiment, described ultrasonic detection device 28, three-dimensional laser scanner and machining set-up 27 are all connected with described data handling equipment, described ultrasonic detection device 28 and three-dimensional laser scanner are by its testing result synchronous driving to described data handling equipment, and described machining set-up 27, ultrasonic detection device 28 and three-dimensional laser scanner are controlled by described data handling equipment. Described three axle travel mechanisms 29 are controlled by described data handling equipment and it is connected with data handling equipment.
In the present embodiment, described machining set-up 27 includes polishing utensil and removal tool, and described removal tool is drilling tool or cutting tool.
During actual installation, described polishing utensil and removal tool can be installed on a Multifunctional knife rack dish.
A kind of mould plasma 3D as shown in Figure 6 prints reproducing method, comprises the following steps:
Step one, mold defect detect: be first positioned on horizontal stamp pad 4 by mould 3 to be repaired, and make the forming surface of mould 3 to be repaired upward; Treat the defect existed on repairing mould 3 again to detect, and the position detecting each defect is recorded respectively;
The defect existed on described mould to be repaired 3 is local defect and/or surface abrasion defect, and described local defect is there is damaged or cracking in the forming surface of mould 3 to be repaired, and the forming surface that described surface abrasion defect is mould 3 to be repaired exists abrasion;
Step 2, mould repair: adopting described mould plasma 3D to print and remanufacture equipment, the defect that the mould to be repaired 3 detected in step one exists is repaired respectively, process is as follows:
Step 201, local defect reparation judge: according to the mold defect testing result in step one, judge whether to carry out local defect reparation: when step one detects there is described local defect in mould 3 to be repaired time, repairing mould 3 need to be treated and carry out local defect reparation, and enter step 202;Otherwise, step 203 is entered;
Step 202, local defect reparation: according to the mold defect testing result in step one, treat each local defect existed on repairing mould 3 and repair respectively, until completing the repair process of all local defects existed on mould 3 to be repaired;
On described mould to be repaired 3, the restorative procedure of all local defects is all identical; Treat any one the described local defect existed on repairing mould 3 when repairing, comprise the following steps:
Step 2021, rejected region are removed: adopt described machining set-up 27 to treat region residing for current repaired local defect on repairing mould 3 and be removed, it is thus achieved that the to be filled region corresponding with current repaired local defect;
Step 2022, plasma 3D print: adopt described plasma beam system of processing, region to be filled described in step 2021 is carried out plasma 3D printing, complete the repair process of current repaired local defect;
Step 203, surface abrasion defect repair judge: according to the mold defect testing result in step one, judge whether to carry out surface abrasion defect repair: when step one detects there is surface abrasion defect in mould 3 to be repaired time, repairing mould 3 need to be treated and carry out surface abrasion defect repair, and enter step 204; Otherwise, what complete mould 3 to be repaired remanufactures process;
Step 204, surface abrasion defect repair: according to the mold defect testing result in step one, adopt described plasma beam system of processing, and the eroded area treated in the forming surface of repairing mould 3 is repaired, and what complete mould 3 to be repaired remanufactures process. Wherein, when the eroded area in described forming surface is repaired, adopt described plasma beam system of processing that the eroded area in described forming surface carries out plasma 3D printing.
In the present embodiment, when carrying out mold defect detection in step one, ultrasonic detection device 28 or three-dimensional laser scanner that the horizontal stamp pad 4 of employing is provided above are treated the defect existed on repairing mould 3 and are detected.
Further, carrying out in mold defect detection process in step one, adopt ultrasonic detection device 28 to treat the defect existed on repairing mould 3 when detecting, ultrasonic detection method conventionally detects. Correspondingly, adopting described three-dimensional laser scanner to treat the defect existed on repairing mould 3 when detecting, Laser Scanning conventionally detects.
In the present embodiment, after step 2 completes mould repair, it is thus achieved that repair rear mold; Afterwards, adopt machining set-up 27 that described reparation rear mold is carried out polish.
The structure of described reparation rear mold is all identical with the structure of the mould finished product of mould 3 to be repaired and size with size, and the mould finished product of mould 3 to be repaired is the mould being absent from any defect. Thus, when adopting machining set-up 27 that described reparation rear mold is carried out polish, specifically the size of described reparation rear mold is carried out polish or the outer surface (specifically described forming surface) of described reparation rear mold is polished, by the size of described reparation rear mold is carried out the dimensional requirement that polish makes its size can meet mould finished product, by the requirement making its surface roughness can meet mould finished product that the outer surface of described reparation rear mold is polished, so that described reparation rear mold prodigiosin directly applies in production.
In the present embodiment, when adopting machining set-up 27 that described reparation rear mold is carried out polish, machining set-up 27 is adopted only the outer surface of described reparation rear mold to be polished so that it is surface roughness can meet the requirement of mould finished product.
In the present embodiment, when carrying out surface abrasion defect repair in step 204, process is as follows:
Step 2041, three-dimensional stereo model obtain and hierarchy slicing processes: adopt described data handling equipment and call the three-dimensional stereo model of eroded area in the forming surface of described image processing module acquisition mould 3 to be repaired, recall the hierarchy slicing module three-dimensional stereo model to described eroded area and carry out hierarchy slicing, and obtain multiple layering cross-sectional image;
Multiple described layering cross-sectional images are the image obtaining multiple layering cross section after the three-dimensional stereo model to described eroded area carries out hierarchy slicing, and multiple described layering cross sections are uniformly laid from the inside to the outside;
Step 2042, scanning pattern are filled: adopt data handling equipment and call described image processing module, described layering cross-sectional images multiple in step 2041 are respectively processed, and complete the scanning pattern filling process in multiple described layering cross section, it is thus achieved that the scanning pattern in multiple described layering cross sections;
Step 2043, printing path obtain: the described data handling equipment scanning pattern according to the multiple described layering cross section obtained in step 2042, it is thus achieved that the printing path in multiple described layering cross sections; The printing path in each described layering cross section is all identical with the scanning pattern in this layering cross section;
Step 2044, from the bottom to top successively printing: the printing path according to the multiple described layering cross section obtained in step 2043, successively described eroded area is printed from the bottom to top, make described eroded area be filled with by multiple shape layers stacking from the bottom to top; The quantity of described shape layer is identical with the quantity being layered cross section described in step one, the installation position of multiple described shape layers is all identical with the installation position one_to_one corresponding in multiple described layering cross sections and its thickness respectively, distance between the thickness of described shape layer with adjacent two described layering cross sections is identical, the printing path of the printing path in multiple described layering cross sections respectively multiple described shape layers in step 3; When described eroded area is printed, process is as follows:
Step 401, bottom print: described in move horizontally the controller 24 printing path according to current institute printing shaping layer acquired in step 2043, described horizontally moving device is controlled and drives described plasma generator to move in the horizontal plane; In described plasma generator moving process, the interior plasma beam with molten melt drop is sprayed onto on mould 3 to be repaired by described plasma beam system of processing continuously; After sprayed molten melt drop all solidifies, complete the print procedure of current institute printing shaping layer;
In this step, current institute printing shaping layer is the shape layer being positioned at bottommost in multiple described shape layer;
Step 402, last layer print, and comprise the following steps:
Step 4021, print distance regulate: horizontal stamp pad 4 in the vertical direction is once moved down and moves down height identical with the thickness of described shape layer, or by print distance regulable control device 10 control described printing distance adjusting means drive described plasma generator in the vertical direction once move up and move up height identical with the thickness of described shape layer;
Step 4022, print and synchronize temperature control: described in move horizontally the controller 24 printing path according to current institute printing shaping layer acquired in step 3, described horizontally moving device is controlled and drives described plasma generator to move in the horizontal plane;In described plasma generator moving process, the interior plasma beam with molten melt drop is sprayed onto on the upper surface of the current printed described shape layer of the next one by described plasma beam system of processing continuously; After sprayed molten melt drop all solidifies, complete the print procedure of current institute printing shaping layer;
In this step, in described plasma generator moving process, carry out detecting in real time and by detected temperature information synchronous driving to printing distance regulable control device 10 to the upper surface temperature of the current printed described shape layer of the next one by temperature detecting unit 9, detect the distance between the unit 8 outlet and horizontal stamp pad 4 to described shower nozzle by distance simultaneously and carry out detection in real time and by the range information synchronous driving detected to printing apart from regulable control device 10; Described print temperature information that distance regulable control device 10 detects according to temperature detecting unit 9 and be adjusted by controlling the distance between described printing distance adjusting means outlet and horizontal stamp pad 4 to described shower nozzle, making 0.6 times of the upper surface temperature of the currently printed described shape layer of the next one material fusing point not higher than described printed material;
In plasma generator moving process described in step 401 and step 4022, described printed material is delivered in described plasma generator by described powder feeder 2 continuously, and the printed material sent in described plasma generator is sent in described plasma generator in the beam-plasma of generation and is molten into molten melt drop under the effect of described working gas, described molten melt drop is uniformly distributed in described beam-plasma, and forms the interior plasma beam with molten melt drop; Further, described molten melt drop moves along the central axis of described beam-plasma under the effect of described working gas (beam-plasma includes unionized working gas); Described printed material is dusty material;
Step 403, repeatedly repetition step 402, until completing the print procedure of all shape layers of described eroded area.
In actually used process, when step 4021 carries out printing distance adjustment, controlling described printing distance adjusting means by printing distance regulable control device 10 drives described plasma generator in the vertical direction once to move up, after described plasma generator moves into place, the height of described plasma generator is recorded, and now the height of described plasma generator is the basis printing height of current institute printing shaping layer; When step 402 carries out next layer of printing, after step 4022 completing print and synchronize temperature control, also need to control described printing distance adjusting means by printing distance regulable control device 10, described plasma generator in the vertical direction is driven to move up and down, until being that in step 4021, the basis of current institute printing shaping layer prints height by the height adjustment of described plasma generator.
In the present embodiment, when mould 3 to be repaired is positioned on horizontal stamp pad 4 by step one, also needs to treat repairing mould 3 by described temporary fixing piece and fix temporarily.
Actual add man-hour, described printed material is that mould 3 material to be repaired is identical or the material of similar nature, such as the composite of aluminium alloy, copper alloy, cast iron, steel, titanium alloy, hard alloy or enhancing, the composite of described enhancing is that granule strengthens or the aluminum matrix composite of whisker reinforcement, Cu-base composites, iron base composite material, base steel composite material or titanium matrix composite.
Thus, described printed material is aluminium alloy, copper alloy, cast iron, steel, titanium alloy or hard alloy.Further, described printed material can also strengthen or the aluminum matrix composite of whisker reinforcement (i.e. whisker dispersion-strengtherning), Cu-base composites, iron base composite material, base steel composite material or titanium matrix composite for granule.
When the plasma beam of melted for interior band liquid stream is sprayed onto on mould 3 to be repaired by plasma beam system of processing continuously described in step 401, the melted liquid stream of interior band synchronizes to flow on the outer surface of mould 3 to be repaired. When the plasma beam of melted for interior band liquid stream is sprayed onto on the outer surface of a current printed upper described shape layer by plasma beam system of processing continuously described in step 4022, the melted liquid stream of interior band synchronizes to flow on the outer surface of a current printed upper described shape layer.
In the present embodiment, when step 2041 obtains the three-dimensional stereo model of described eroded area, three-dimensional stereo model according to mould 3 to be repaired and the three-dimensional stereo model of the mould finished product (i.e. certified products) of mould to be repaired 3, obtain the three-dimensional stereo model of described eroded area.
In the present embodiment, when step 2044 successively prints from the bottom to top, process is as follows: the printing path according to the multiple described layering cross section obtained in step 2041, described eroded area is successively printed by mould 3 to be repaired from the bottom to top, it is thus achieved that the eroded area stacking from the inside to the outside by multiple shape layers repairs structure; Shape layer described herein is the shape layer that described eroded area repairs in structure, the quantity of described shape layer is identical with the quantity being layered cross section described in step 2041, the installation position one_to_one corresponding in multiple described layering cross sections and its thickness are all identical with step 2041 respectively for the installation position of multiple described shape layers, distance between the thickness of described shape layer two described layering cross sections adjacent with step 2041 is identical, the printing path of the printing path in multiple described layering cross sections respectively multiple described shape layers in step 2043.
In the present embodiment, before step 2044 successively prints from the bottom to top, data handling equipment described in step 2041 is first according to the material fusing point pre-build and printing range data storehouse, and combine the Material Name of described printed material pre-entered by parameter input unit, the basis of described printed material is printed distance and is determined; Described parameter input unit connects with described data handling equipment;
In described material fusing point and printing range data storehouse, storage has the material fusing point of various material and prints range information, and the material fusing point of every kind of described material and printing range information all include the title of this kind of material, fusing point and basis printing distance; It is 5mm��1000mm that described basis prints distance, and material fusing point is more high, and it is more near that basis prints distance;
Carrying out in step 401 before bottom printing, the distance exported between horizontal stamp pad 4 of described shower nozzle is adjusted to described basis printing distance according to the range information detected apart from detection unit 8 and by controlling described printing distance adjusting means by described printing distance regulable control device 10; In step 401 in bottom print procedure, the distance between outlet and the horizontal stamp pad 4 of described shower nozzle is that described basis prints distance;
When step 4021 carries out printing distance adjustment, horizontal stamp pad 4 in the vertical direction is once moved down and is moved down height identical with the thickness of described shape layer; Before step 4022 carrying out print and synchronize temperature control, described printing distance regulable control device 10 detects, according to distance, range information the moving down number of times and moving down highly every time in conjunction with horizontal stamp pad 4 that unit 8 detects, and by controlling described printing distance adjusting means, the distance between outlet and the upper surface of the currently printed described shape layer of the next one of described shower nozzle is adjusted to described basis printing distance;When distance between outlet and the horizontal stamp pad 4 of described shower nozzle is adjusted by step 4022, described print temperature information that distance regulable control device 10 detects according to temperature detecting unit 9 and combine the range information that distance detection unit 8 detects the distance between outlet and the horizontal stamp pad 4 of described shower nozzle is adjusted, making the upper surface temperature of the current printed described shape layer of the next one control between 0.1 times��0.6 times of the material fusing point at described printed material; Further, when the distance between outlet and the horizontal stamp pad 4 of described shower nozzle is adjusted, the amplitude of accommodation is 5mm��60mm, and material fusing point is more high, and the amplitude of accommodation is more little.
In the present embodiment, before step 2044 successively prints from the bottom to top, data handling equipment described in step 2041 is first according to the gas pre-build and powder mass flow data base, and in conjunction with the thickness of described shape layer set in advance, the base gas flow of air supply pipe 5 and the powder feeding flow of powder feeding pipe 6 are determined;
Described gas and powder mass flow databases contain the powder feeding flow needed for the shape layer of multiple different thickness and base gas flow; Described base gas flow is 50ml/min��15000ml/min, and the powder feeding flow of powder feeding pipe 6 is more big, and described base gas flow is more big;
In plasma generator moving process described in step 401 and step 4022, the powder feeding flow of powder feeding pipe 6 is carried out detection in real time and detected synchronizing information is sent to powder feeding flow controller 20 by described powder mass flow detection unit 18, drive motor 19 is controlled by described powder feeding flow controller 20 according to powder feeding flow 18 detection information of combining powder flow detection unit of predetermined powder feeding pipe 6, and the powder feeding flow making powder feeding pipe 6 is all identical with predetermined powder feeding flow;
Carrying out in step 401 before bottom printing, the gas flow of air supply pipe 5 is adjusted to described base gas flow according to 11 detection information of detection of gas flow rate unit and by controlling flow control valve 25 by described gas flow controller 12; In step 401 in bottom print procedure, the gas flow of described air supply pipe 5 is described base gas flow;
Step 4022 carries out print and synchronize in temperature control process, described gas flow controller 12 is according to 11 detection information of detection of gas flow rate unit and combines distance detection 8 detecting distance information of unit, and by controlling flow control valve 25, the gas flow of air supply pipe 5 carries out increase and decrease adjustment; Further, the distance between outlet and the horizontal stamp pad 4 of described shower nozzle is more big, and the gas flow of described air supply pipe 5 is more big.
In the present embodiment, hierarchy slicing module described in step 2041 is hierarchy slicing software. Described hierarchy slicing software is that 3D prints the conventional batch Slice Software adopted, such as Cura, Xbuilder, Makerbot etc.
In the present embodiment, when obtaining the three-dimensional stereo model of described eroded area, utilize the three-dimensional graphics software such as pro/e, UG, CATIA to design the three-dimensional stereo model (i.e. three-dimensional entity model) of described eroded area, or utilize reverse engineering to solve the three-dimensional stereo model of described eroded area; Again through described hierarchy slicing module, this three-dimensional stereo model is carried out hierarchy slicing, and obtain the outline data in each cross section, generated by outline data and fill scanning pattern, the corresponding printing path (i.e. the printing path in each layering cross section) obtaining described plasma beam system of processing.Thus, the method adopted in step 2041 and step 2042 is identical with the method that conventional laser selective melting molding or electron beam selective melting molding adopt. Afterwards, carry out in X and Y direction motor process in the horizontal plane according to the printing path obtained, the interior plasma beam with molten melt drop is sprayed onto on mould 3 to be repaired or on the upper surface of the current printed described shape layer of the next one by described plasma beam system of processing continuously; After sprayed molten melt drop all solidifies, complete the print procedure of a shape layer; Then, described three axis numerically controlled machine 16 declines in the Z-axis direction, successively prints, thus completing the print procedure of 3 d part.
Owing to horizontal stamp pad 4 is the mobile platform being arranged on stamp pad position regulator, thus the printing path in each described layering cross section acquired in step 2043 can also be the machining path of three axis numerically controlled machine 16, now described plasma beam system of processing is not moved in the horizontal plane, but by horizontal stamp pad 4 in horizontal on be moved, thus completing the print procedure of each shape layer.
In the present embodiment, adopting described plasma beam system of processing in step 2022, when region to be filled described in step 2021 carries out plasma 3D printing, process is as follows:
Step A, three-dimensional stereo model obtain and hierarchy slicing processes: the three-dimensional stereo model according to the mould finished product of mould 3 to be repaired, adopt data handling equipment and call the three-dimensional stereo model in the described region to be filled of image processing module acquisition, recall the hierarchy slicing module three-dimensional stereo model to described region to be filled and carry out hierarchy slicing, and obtain multiple layering cross-sectional image;
In this step, multiple described layering cross-sectional images are the image obtaining multiple layering cross section after the three-dimensional stereo model to described region to be filled carries out hierarchy slicing, and multiple described layering cross sections are uniformly laid from the bottom to top;
Step B, scanning pattern are filled: adopt data handling equipment and call described image processing module, described layering cross-sectional images multiple in step A are respectively processed, and complete the scanning pattern filling process in multiple described layering cross section, it is thus achieved that the scanning pattern in multiple described layering cross sections;
Step C, printing path obtain: the described data handling equipment scanning pattern according to the multiple described layering cross section obtained in step B, it is thus achieved that the printing path in multiple described layering cross sections; The printing path in each described layering cross section is all identical with the scanning pattern in this layering cross section;
Step D, from the bottom to top successively printing: the printing path according to the multiple described layering cross section obtained in step C, successively described region to be filled is printed from the bottom to top, make described region to be filled be filled with by multiple shape layers stacking from the bottom to top; The quantity of described shape layer is identical with the quantity being layered cross section described in step A, the installation position of multiple described shape layers is all identical with the installation position one_to_one corresponding in multiple described layering cross sections and its thickness respectively, distance between the thickness of described shape layer two described layering cross sections adjacent with step A is identical, the printing path of multiple described shape layers in the printing path in multiple described layering cross sections respectively described region to be filled in step C; In described region to be filled, the Method of printing of multiple described shape layers is all identical; When described region to be filled is printed, process is as follows:
Step D1, bottom print: described in move horizontally the controller 24 printing path according to current institute printing shaping layer acquired in step C, described horizontally moving device is controlled and drives described plasma generator to move in the horizontal plane;In described plasma generator moving process, the interior plasma beam with molten melt drop is sprayed onto in described region to be filled by described plasma beam system of processing continuously; After sprayed molten melt drop all solidifies, complete the print procedure of current institute printing shaping layer in described region to be filled;
In this step, current institute printing shaping layer is the shape layer being positioned at bottommost in described region to be filled in multiple described shape layers;
Step D2, last layer print, and comprise the following steps:
Step D21, print distance regulate: horizontal stamp pad 4 in the vertical direction is once moved down and moves down height identical with the thickness of described shape layer, or by print distance regulable control device 10 control described printing distance adjusting means drive described plasma generator in the vertical direction once move up and move up height identical with the thickness of described shape layer;
Step D22, printing and synchronize temperature control: described in move horizontally the controller 24 printing path according to current institute printing shaping layer acquired in step C, described horizontally moving device is controlled and drives described plasma generator to move in the horizontal plane; In described plasma generator moving process, the interior plasma beam with molten melt drop is sprayed onto on the upper surface of the current printed described shape layer of the next one by described plasma beam system of processing continuously; After sprayed molten melt drop all solidifies, complete the print procedure of current institute printing shaping layer;
In this step, in described plasma generator moving process, carry out detecting in real time and by detected temperature information synchronous driving to printing distance regulable control device 10 to the upper surface temperature of the described shape layer of the next one current printed in described region to be filled by temperature detecting unit 9, detect the distance between the unit 8 outlet and horizontal stamp pad 4 to described shower nozzle by distance simultaneously and carry out detection in real time and by the range information synchronous driving detected to printing apart from regulable control device 10; Described print temperature information that distance regulable control device 10 detects according to temperature detecting unit 9 and be adjusted by controlling the distance between described printing distance adjusting means outlet and horizontal stamp pad 4 to described shower nozzle, making 0.6 times of the upper surface temperature of the currently printed described shape layer of the next one material fusing point not higher than described printed material;
In plasma generator moving process described in step D1 and step D22, described printed material is delivered in described plasma generator by described powder feeder 2 continuously, and the printed material sent in described plasma generator is sent in described plasma generator in the beam-plasma of generation and is molten into molten melt drop under the effect of described working gas, described molten melt drop is uniformly distributed in described beam-plasma, and forms the interior plasma beam with molten melt drop;
Step D3, repeatedly repetition step D2, until completing the print procedure of all shape layers in described region to be filled.
In the present embodiment, before step D successively prints from the bottom to top, data handling equipment described in step A is first according to the material fusing point pre-build and printing range data storehouse, and combine the Material Name of described printed material pre-entered by parameter input unit, the basis of described printed material is printed distance and is determined; Described parameter input unit connects with described data handling equipment;
Carrying out in step D1 before bottom printing, the distance between outlet and the horizontal stamp pad 4 of described shower nozzle is adjusted to described basis printing distance by controlling described printing distance adjusting means by described printing distance regulable control device 10; In step D1 in bottom print procedure, the distance between outlet and the horizontal stamp pad 4 of described shower nozzle is that described basis prints distance;
Before step D22 carrying out print and synchronize temperature control, described print distance regulable control device 10, by controlling described printing distance adjusting means, the distance between the upper surface of the described shape layer of the next one current printed in the outlet of described shower nozzle and die matrix 3-1 is adjusted to described basis printing distance, when distance between outlet and the horizontal stamp pad 4 of described shower nozzle is adjusted by step D22, also need by temperature-detecting device, the upper surface temperature of the described shape layer of the next one current printed in described region to be filled to be detected in real time, the distance exported between horizontal stamp pad 4 of described shower nozzle is adjusted by the described temperature information detected according to described temperature-detecting device apart from regulable control device 10 that prints, the upper surface temperature making the described shape layer of the next one current printed in region to be filled controls between 0.1 times��0.6 times of the material fusing point at described printed material, further, when the distance between outlet and the horizontal stamp pad 4 of described shower nozzle is adjusted, the amplitude of accommodation is 5mm��60mm, and the material fusing point of described printed material is more high, and the amplitude of accommodation is more little.
In the present embodiment, before step D successively prints from the bottom to top, data handling equipment described in step A is first according to the gas pre-build and powder mass flow data base, and in conjunction with the thickness of shape layer described in region to be filled set in advance, the base gas flow of air supply pipe 5 and the powder feeding flow of powder feeding pipe 6 are determined;
In plasma generator moving process described in step D1 and step D22, the powder feeding flow of powder feeding pipe 6 is carried out detection in real time and detected synchronizing information is sent to powder feeding flow controller 20 by described powder mass flow detection unit 18, drive motor 19 is controlled by described powder feeding flow controller 20 according to powder feeding flow 18 detection information of combining powder flow detection unit of predetermined powder feeding pipe 6, and the powder feeding flow making powder feeding pipe 6 is all identical with predetermined powder feeding flow;
Carrying out in step D1 before bottom printing, the gas flow of air supply pipe 5 is adjusted to described base gas flow according to 11 detection information of detection of gas flow rate unit and by controlling flow control valve 25 by described gas flow controller 12; In step D1 in bottom print procedure, the gas flow of described air supply pipe 5 is described base gas flow;
Step D22 carries out print and synchronize in temperature control process, described gas flow controller 12 is according to 11 detection information of detection of gas flow rate unit and combines distance detection 8 detecting distance information of unit, and by controlling flow control valve 25, the gas flow of air supply pipe 5 carries out increase and decrease adjustment; Further, the distance between outlet and the horizontal stamp pad 4 of described shower nozzle is more big, and the gas flow of described air supply pipe 5 is more big.
Embodiment 2
In the present embodiment, as it is shown in fig. 7, the mould plasma 3D adopted prints remanufactures equipment as different from Example 1: described spout 13-5 lays in coaxial with powder flow paths 14.
So, after the direction of described beam-plasma being changed by spout 13-5, can effectively reduce the plasma jet antianode nozzle 13-2 thermic load produced and impact, improve anode ablation situation.Simultaneously as spout 13-5 lays in coaxial with powder flow paths 14, thus without influence on the acceleration of powder, heating and fusion process, result of use is very good.
In the present embodiment, it is all identical with embodiment 1 that adopted mould plasma 3D printing remanufactures the remainder structure of equipment, annexation and operation principle.
In the present embodiment, it is identical with embodiment 1 that the mould plasma 3D adopted prints reproducing method.
The above; it it is only presently preferred embodiments of the present invention; not the present invention is imposed any restrictions, every any simple modification, change and equivalent structure change above example made according to the technology of the present invention essence, all still fall within the protection domain of technical solution of the present invention.

Claims (10)

1. a mould plasma 3D prints and remanufactures equipment, it is characterised in that: by monitoring system, plasma beam system of processing, treat machining set-up (27) that repairing mould (3) is machined out, the horizontal stamp pad (4) placed for mould to be repaired (3) and treat the temporary fixing piece that repairing mould (3) carries out fixing temporarily and form; Described machining set-up (27) is positioned at horizontal stamp pad (4) top; Described temporary fixing piece is laid on horizontal stamp pad (4);
Described plasma beam system of processing is by being provided with shower nozzle and for producing the plasma generator of beam-plasma, the print position adjusting apparatus that the position of described plasma generator is adjusted, providing the feeder (1) of working gas for described plasma generator and for form to the powder feeder (2) sending into printed material in described plasma generator continuously, and described plasma generator is positioned at above horizontal stamp pad (4); Described feeder (1) is connected with the air inlet opened on described plasma generator by air supply pipe (5); The powder flow paths (14) of described powder circulation it is provided in described plasma generator, described powder flow paths (14) communicates with arc chamber (13-4) inside in described plasma generator and it connects with described air inlet, the external port of described powder flow paths is powder inlet (22), and the powder feeding mouth of described powder feeder (2) is connected with powder inlet (22) by powder feeding pipe (6); Horizontally moving device that described print position adjusting apparatus includes driving described plasma generator to move in the horizontal plane and drive described plasma generator and described horizontally moving device synchronizing moving and tackle the printing distance adjusting means that the distance between the outlet of described shower nozzle and horizontal stamp pad (4) is adjusted mutually, described plasma generator is arranged on described horizontally moving device, and described horizontally moving device is arranged in described printing distance adjusting means;
What described monitoring system included described horizontally moving device is controlled moves horizontally controller (24), described plasma beam system of processing Working position place temperature on mould to be repaired (3) is carried out the temperature detecting unit (9) of detection in real time, distance detection unit (8) that distance between outlet and the horizontal stamp pad (4) of described shower nozzle is carried out detection in real time and printing distance regulable control device (10) that described printing distance adjusting means is controlled, the described controller (24) that moves horizontally is connected with described horizontally moving device, described distance regulable control device (10) that prints is connected with described printing distance adjusting means, described temperature detecting unit (9) and distance detection unit (8) are all connected apart from regulable control device (10) with printing,Described temperature detecting unit (9) forms temperature control device with printing distance regulable control device (10).
2. a kind of mould plasma 3D described in claim 1 prints and remanufactures equipment, it is characterized in that: described mould to be repaired (3) is for exist local defect and/or the mould of surface abrasion defect, described local defect is there is damaged or cracking in the forming surface of mould to be repaired (3), and the forming surface that described surface abrasion defect is mould to be repaired (3) exists abrasion; Being provided above of described horizontal stamp pad (4) treats ultrasonic detection device (28) or the three-dimensional laser scanner that the upper defect existed of repairing mould (3) carries out detecting.
3. a kind of mould plasma 3D described in claim 1 or 2 prints and remanufactures equipment, it is characterized in that: described powder feeder (2) includes the shell that top has charging aperture and the powder feeding wheel being arranged in described shell, and described powder feeding wheel is driven by drive motor (19); Described powder feeding mouth is positioned at described outer casing underpart;
Detection of gas flow rate unit (11) that plasma generator controller (7) that described monitoring system also includes described plasma generator is controlled, gas flow to air supply pipe (5) carry out detection in real time and the gas flow controller (12) that the upper flow control valve (25) installed of air supply pipe (5) is controlled, described plasma generator controller (7) is connected with described plasma generator, and described detection of gas flow rate unit (11) is connected with gas flow controller (12).
4. a kind of mould plasma 3D described in claim 1 or 2 prints and remanufactures equipment, it is characterized in that: described plasma generator includes plasma gun (13), described shower nozzle is the anode nozzle (13-2) of plasma gun (13) front end; Described plasma gun (13) includes having the gun body (13-1) of described air inlet, being positioned at the anode nozzle (13-2) of gun body (13-1) dead ahead and be plugged in the negative electrode (13-3) of gun body (13-1), described anode nozzle (13-2) is positioned at negative electrode (13-3) front side, described arc chamber (13-4) is positioned at negative electrode (13-3) front side and it is positioned at the posterior medial of anode nozzle (13-2), and the front inner of described anode nozzle (13-2) is spout (13-5).
5. a kind of mould plasma 3D described in claim 4 prints and remanufactures equipment, it is characterised in that: described anode nozzle (13-2), negative electrode (13-3) and arc chamber (13-4) are all laid in coaxial with gun body (13-1); Described powder flow paths (14) and gun body (13-1) inclined laying and its front end stretch in spout (13-5), described powder flow paths (14) for straight channel and it include the back side walkway being laid in gun body (13-1) and the front side channel being laid in anode nozzle (13-2).
6. a kind of mould plasma 3D described in claim 1 or 2 prints and remanufactures equipment, it is characterised in that: the angle between central axis and the vertical plane of the beam-plasma that described plasma generator produces is not more than 45 ��; Described printing distance adjusting means is the adjusting apparatus up and down (17) described shower nozzle adjusted up and down along the central axis of described beam-plasma, and described distance detection unit (8) be to the distance detection device carrying out from the distance exported between horizontal stamp pad (4) of described shower nozzle detecting in real time along the central axis of described beam-plasma;
Described horizontal stamp pad (4) is for be arranged on stamp pad position regulator and the mobile platform that can move up and down;
Described monitoring system also includes the position adjustment controller (15) that described stamp pad position regulator is controlled, and described position adjustment controller (15) is connected with described stamp pad position regulator.
7. one kind utilizes and remanufactures equipment as claimed in claim 1 and mould carries out plasma 3D print the method that remanufactures, it is characterised in that: the method comprises the following steps:
Step one, mold defect detect: be first positioned on horizontal stamp pad (4) by mould to be repaired (3), and make the forming surface of mould to be repaired (3) upward; Treat the upper defect existed of repairing mould (3) again to detect, and the position detecting each defect is recorded respectively;
The upper defect existed of described mould to be repaired (3) is local defect and/or surface abrasion defect, described local defect is there is damaged or cracking in the forming surface of mould to be repaired (3), and the forming surface that described surface abrasion defect is mould to be repaired (3) exists abrasion;
Step 2, mould repair: adopt described mould plasma 3D to print and remanufacture equipment, repair respectively to the upper defect existed of the mould to be repaired (3) detected in step one, and process is as follows:
Step 201, local defect reparation judge: according to the mold defect testing result in step one, judge whether to carry out local defect reparation: when step one detects there is described local defect in mould to be repaired (3) time, repairing mould (3) need to be treated and carry out local defect reparation, and enter step 202; Otherwise, step 203 is entered;
Step 202, local defect reparation: according to the mold defect testing result in step one, treat the upper each local defect existed of repairing mould (3) to repair respectively, until completing the repair process of the upper all local defects existed of mould to be repaired (3);
The restorative procedure of the upper all local defects of described mould to be repaired (3) is all identical; Treat repairing mould (3) upper any one described local defect existed when repairing, comprise the following steps:
Step 2021, rejected region are removed: adopt described machining set-up (27) to treat region residing for upper current the repaired local defect of repairing mould (3) and be removed, it is thus achieved that the to be filled region corresponding with current repaired local defect;
Step 2022, plasma 3D print: adopt described plasma beam system of processing, region to be filled described in step 2021 is carried out plasma 3D printing, complete the repair process of current repaired local defect;
Step 203, surface abrasion defect repair judge: according to the mold defect testing result in step one, judge whether to carry out surface abrasion defect repair: when step one detects there is surface abrasion defect in mould to be repaired (3) time, repairing mould (3) need to be treated and carry out surface abrasion defect repair, and enter step 204; Otherwise, what complete mould to be repaired (3) remanufactures process;
Step 204, surface abrasion defect repair: according to the mold defect testing result in step one, adopt described plasma beam system of processing, the eroded area treated in the forming surface of repairing mould (3) is repaired, and what complete mould to be repaired (3) remanufactures process.
8. the plasma 3D that mould is carried out described in claim 7 prints the method remanufactured, it is characterized in that: when step one carries out mold defect detection, adopt ultrasonic detection device (28) that horizontal stamp pad (4) is provided above or three-dimensional laser scanner to treat the upper defect existed of repairing mould (3) and detect;
After step 2 completes mould repair, it is thus achieved that repair rear mold; Afterwards, adopt machining set-up (27) that described reparation rear mold is carried out polish.
9. the plasma 3D that mould is carried out described in claim 7 or 8 prints the method remanufactured, it is characterised in that: when carrying out surface abrasion defect repair in step 204, process is as follows:
Step 2041, three-dimensional stereo model obtain and hierarchy slicing processes: adopt described data handling equipment and call the three-dimensional stereo model of eroded area in the forming surface of described image processing module acquisition mould to be repaired (3), recall the hierarchy slicing module three-dimensional stereo model to described eroded area and carry out hierarchy slicing, and obtain multiple layering cross-sectional image;
Multiple described layering cross-sectional images are the image obtaining multiple layering cross section after the three-dimensional stereo model to described eroded area carries out hierarchy slicing, and multiple described layering cross sections are uniformly laid from the inside to the outside;
Step 2042, scanning pattern are filled: adopt data handling equipment and call described image processing module, described layering cross-sectional images multiple in step 2041 are respectively processed, and complete the scanning pattern filling process in multiple described layering cross section, it is thus achieved that the scanning pattern in multiple described layering cross sections;
Step 2043, printing path obtain: the described data handling equipment scanning pattern according to the multiple described layering cross section obtained in step 2042, it is thus achieved that the printing path in multiple described layering cross sections; The printing path in each described layering cross section is all identical with the scanning pattern in this layering cross section;
Step 2044, from the bottom to top successively printing: the printing path according to the multiple described layering cross section obtained in step 2043, successively described eroded area is printed from the bottom to top, make described eroded area be filled with by multiple shape layers stacking from the bottom to top; The quantity of described shape layer is identical with the quantity being layered cross section described in step one, the installation position of multiple described shape layers is all identical with the installation position one_to_one corresponding in multiple described layering cross sections and its thickness respectively, distance between the thickness of described shape layer with adjacent two described layering cross sections is identical, the printing path of the printing path in multiple described layering cross sections respectively multiple described shape layers in step 3; When described eroded area is printed, process is as follows:
Step 401, bottom print: described in move horizontally the controller (24) printing path according to current institute printing shaping layer acquired in step 2043, described horizontally moving device is controlled and drives described plasma generator to move in the horizontal plane; In described plasma generator moving process, the interior plasma beam with molten melt drop is sprayed onto on mould to be repaired (3) by described plasma beam system of processing continuously; After sprayed molten melt drop all solidifies, complete the print procedure of current institute printing shaping layer;
In this step, current institute printing shaping layer is the shape layer being positioned at bottommost in multiple described shape layer;
Step 402, last layer print, and comprise the following steps:
Step 4021, print distance regulate: horizontal stamp pad (4) in the vertical direction is once moved down and moves down height identical with the thickness of described shape layer, or by print distance regulable control device (10) control described printing distance adjusting means drive described plasma generator in the vertical direction once move up and move up height identical with the thickness of described shape layer;
Step 4022, print and synchronize temperature control: described in move horizontally the controller (24) printing path according to current institute printing shaping layer acquired in step 3, described horizontally moving device is controlled and drives described plasma generator to move in the horizontal plane; In described plasma generator moving process, the interior plasma beam with molten melt drop is sprayed onto on the upper surface of the current printed described shape layer of the next one by described plasma beam system of processing continuously; After sprayed molten melt drop all solidifies, complete the print procedure of current institute printing shaping layer;
In this step, in described plasma generator moving process, carry out detecting in real time and by detected temperature information synchronous driving to printing apart from regulable control device (10) to the upper surface temperature of the current printed described shape layer of the next one by temperature detecting unit (9), detect the distance between the unit (8) outlet and horizontal stamp pad (4) to described shower nozzle by distance simultaneously and carry out detection in real time the range information synchronous driving extremely printing distance regulable control device (10) that will detect; Described print temperature information that distance regulable control device (10) detects according to temperature detecting unit (9) and be adjusted by controlling the distance between described printing distance adjusting means outlet and horizontal stamp pad (4) to described shower nozzle, making 0.6 times of the upper surface temperature of the currently printed described shape layer of the next one material fusing point not higher than described printed material;
In plasma generator moving process described in step 401 and step 4022, described printed material is delivered in described plasma generator by described powder feeder (2) continuously, and the printed material sent in described plasma generator is sent in described plasma generator in the beam-plasma of generation and is molten into molten melt drop under the effect of described working gas, described molten melt drop is uniformly distributed in described beam-plasma, and forms the interior plasma beam with molten melt drop; Described printed material is dusty material;
Step 403, repeatedly repetition step 402, until completing the print procedure of all shape layers of described eroded area.
10. the plasma 3D that mould is carried out described in claim 7 or 8 prints the method remanufactured, it is characterized in that: step 2022 adopts described plasma beam system of processing, when region to be filled described in step 2021 carries out plasma 3D printing, process is as follows:
Step A, three-dimensional stereo model obtain and hierarchy slicing processes: the three-dimensional stereo model according to the mould finished product of mould to be repaired (3), adopt data handling equipment and call the three-dimensional stereo model in the described region to be filled of image processing module acquisition, recall the hierarchy slicing module three-dimensional stereo model to described region to be filled and carry out hierarchy slicing, and obtain multiple layering cross-sectional image;
In this step, multiple described layering cross-sectional images are the image obtaining multiple layering cross section after the three-dimensional stereo model to described region to be filled carries out hierarchy slicing, and multiple described layering cross sections are uniformly laid from the bottom to top;
Step B, scanning pattern are filled: adopt data handling equipment and call described image processing module, described layering cross-sectional images multiple in step A are respectively processed, and complete the scanning pattern filling process in multiple described layering cross section, it is thus achieved that the scanning pattern in multiple described layering cross sections;
Step C, printing path obtain: the described data handling equipment scanning pattern according to the multiple described layering cross section obtained in step B, it is thus achieved that the printing path in multiple described layering cross sections;The printing path in each described layering cross section is all identical with the scanning pattern in this layering cross section;
Step D, from the bottom to top successively printing: the printing path according to the multiple described layering cross section obtained in step C, successively described region to be filled is printed from the bottom to top, make described region to be filled be filled with by multiple shape layers stacking from the bottom to top; The quantity of described shape layer is identical with the quantity being layered cross section described in step A, the installation position of multiple described shape layers is all identical with the installation position one_to_one corresponding in multiple described layering cross sections and its thickness respectively, distance between the thickness of described shape layer two described layering cross sections adjacent with step A is identical, the printing path of multiple described shape layers in the printing path in multiple described layering cross sections respectively described region to be filled in step C; In described region to be filled, the Method of printing of multiple described shape layers is all identical; When described region to be filled is printed, process is as follows:
Step D1, bottom print: described in move horizontally the controller (24) printing path according to current institute printing shaping layer acquired in step C, described horizontally moving device is controlled and drives described plasma generator to move in the horizontal plane; In described plasma generator moving process, the interior plasma beam with molten melt drop is sprayed onto in described region to be filled by described plasma beam system of processing continuously; After sprayed molten melt drop all solidifies, complete the print procedure of current institute printing shaping layer in described region to be filled;
In this step, current institute printing shaping layer is the shape layer being positioned at bottommost in described region to be filled in multiple described shape layers;
Step D2, last layer print, and comprise the following steps:
Step D21, print distance regulate: horizontal stamp pad (4) in the vertical direction is once moved down and moves down height identical with the thickness of described shape layer, or by print distance regulable control device (10) control described printing distance adjusting means drive described plasma generator in the vertical direction once move up and move up height identical with the thickness of described shape layer;
Step D22, printing and synchronize temperature control: described in move horizontally the controller (24) printing path according to current institute printing shaping layer acquired in step C, described horizontally moving device is controlled and drives described plasma generator to move in the horizontal plane; In described plasma generator moving process, the interior plasma beam with molten melt drop is sprayed onto on the upper surface of the current printed described shape layer of the next one by described plasma beam system of processing continuously; After sprayed molten melt drop all solidifies, complete the print procedure of current institute printing shaping layer;
In this step, in described plasma generator moving process, carry out detecting in real time and by detected temperature information synchronous driving to printing apart from regulable control device (10) to the upper surface temperature of the described shape layer of the next one current printed in described region to be filled by temperature detecting unit (9), detect the distance between the unit (8) outlet and horizontal stamp pad (4) to described shower nozzle by distance simultaneously and carry out detection in real time the range information synchronous driving extremely printing distance regulable control device (10) that will detect; Described print temperature information that distance regulable control device (10) detects according to temperature detecting unit (9) and be adjusted by controlling the distance between described printing distance adjusting means outlet and horizontal stamp pad (4) to described shower nozzle, making 0.6 times of the upper surface temperature of the currently printed described shape layer of the next one material fusing point not higher than described printed material;
In plasma generator moving process described in step D1 and step D22, described printed material is delivered in described plasma generator by described powder feeder (2) continuously, and the printed material sent in described plasma generator is sent in described plasma generator in the beam-plasma of generation and is molten into molten melt drop under the effect of described working gas, described molten melt drop is uniformly distributed in described beam-plasma, and forms the interior plasma beam with molten melt drop;
Step D3, repeatedly repetition step D2, until completing the print procedure of all shape layers in described region to be filled.
CN201610121787.6A 2016-03-03 2016-03-03 Plasma 3D printing remanufacturing equipment and method for mold Pending CN105642895A (en)

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CN111774565A (en) * 2020-06-01 2020-10-16 成都飞机工业（集团）有限责任公司 3D printing powder feeding restoration identification method based on feature extraction thinking model
CN112677486A (en) * 2020-12-02 2021-04-20 苏州安美特激光科技有限公司 Surface morphology regulation and control method for preparing inclined plane by additive manufacturing technology
CN112677486B (en) * 2020-12-02 2021-09-21 苏州安美特激光科技有限公司 Surface morphology regulation and control method for preparing inclined plane by additive manufacturing technology
CN112222757A (en) * 2020-12-10 2021-01-15 扬昕科技(苏州)有限公司 Lenti mould benevolence patching device based on Laser is smooth
CN112222757B (en) * 2020-12-10 2021-03-02 扬昕科技(苏州)有限公司 Lenti mould benevolence patching device based on laser is smooth

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