CN106825348B - Metal smithwelding increasing material manufacturing device and forging method - Google Patents
Metal smithwelding increasing material manufacturing device and forging method Download PDFInfo
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- CN106825348B CN106825348B CN201611256570.2A CN201611256570A CN106825348B CN 106825348 B CN106825348 B CN 106825348B CN 201611256570 A CN201611256570 A CN 201611256570A CN 106825348 B CN106825348 B CN 106825348B
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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
- 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
- B22F12/10—Auxiliary heating means
- B22F12/13—Auxiliary heating means to preheat the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
- B21J7/02—Special design or construction
- B21J7/04—Power hammers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K27/00—Handling devices, e.g. for feeding, aligning, discharging, Cutting-off means; Arrangement thereof
- B21K27/02—Feeding devices for rods, wire, or strips
- B21K27/04—Feeding devices for rods, wire, or strips allowing successive working steps
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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
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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
- B22F10/10—Formation of a green body
- B22F10/18—Formation of a green body by mixing binder with metal in filament form, e.g. fused filament fabrication [FFF]
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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
- B22F10/30—Process control
- B22F10/32—Process control of the atmosphere, e.g. composition or pressure in a building chamber
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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
- B22F10/50—Treatment of workpieces or articles during build-up, e.g. treatments applied to fused layers during build-up
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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
- 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
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- 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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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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
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
- B22F10/362—Process control of energy beam parameters for preheating
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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
- B22F10/30—Process control
- B22F10/38—Process control to achieve specific product aspects, e.g. surface smoothness, density, porosity or hollow structures
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- 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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- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Analytical Chemistry (AREA)
- Forging (AREA)
Abstract
A kind of metal smithwelding increasing material manufacturing device of present invention proposition and forging method, including work chamber, and the control unit being connected with work chamber, forging substrate is provided in work chamber, process unit and moving cell, moving cell is set to the side of forging substrate, processing unit is located at the side of moving cell, and process the top that unit is located at forging substrate when processing the workpiece, processing unit includes the preheating unit sequentially laid on autokinesis unit to the direction of forging substrate, forge unit, wire feeder and steel wire storage device, wherein, it includes the forging hammer that can be pumped to forge unit, it is formed between workpiece surface below forging hammer and forges area, forging hammer is moved back and forth forging in area, continuously to be forged to workpiece and wire.The material internal microscopic structure that the present invention manufactures is forging tissue, and crystal grain is thin, good mechanical performance, and is not in that stomata etc. welds common metallurgical imperfection, can greatly improve the reliability and consistency of metal increasing material manufacturing part performance.
Description
Technical field
The invention belongs to metal material increasing field more particularly to a kind of metal smithwelding increasing material manufacturing device and forging sides
Method.
Background technology
Currently, realize that the mainstream increasing material manufacturing mode of metal material metallurgical binding is usually " fusing-solidification ", its main feature is that
The synchronous metal material being sent into, such as metal wire material, powder are melted using heat source, layer upon layer realizes knot in the form of built-up welding
The manufacture of structure, and the metal material internal microstructure prepared is solidified structure.In order to improve the mechanical property of material, in reduction
Portion's defect had developed melt deposition increasing material and the compound method of thermomechanical processing, i.e., realized material by fusing again later
Deposition and metallurgical binding are further added by rolling, forging or impact process with crystal grain thinning, improve internal soundness, such as
" a kind of metal increasing material manufacturing device that molten forging is compound " that CN103962560A is provided, but its basic principle still falls within and " melts-coagulate
Gu " scope, only make material deformation to improve performance by increasing forging on this basis.
Take above metal parts interior tissue that the scheme of " fusing-solidification " obtains for forging tissue very
It is coarse, and there is apparent directionality, although there is the mechanical property after some materials forming preferable, for universal significance,
The material of fusing forming is extremely difficult to and the comparable comprehensive performance of forged material.In addition, being also possible that in fusing weld deposit process
The weld defects such as stomata, crackle, incomplete fusion.Although melted join forging method can improve internal soundness and performance,
But in this combined machining method, fusing and forging are completed by two different processing units respectively, and the two has spatially
Distance and temporal lag so that technique and equipment complexity are high；In addition, since molten bath is small, solidification and cooling velocity
Soon so that forging temperature is unable to get effective control, influences the scope of application of material and the effect of forging.
Invention content
In order to overcome above-mentioned technical problem, a kind of metal smithwelding increasing material manufacturing device of present invention proposition and forging method.
In order to achieve the above object, the technical solution adopted by the present invention is：
A kind of metal smithwelding increasing material manufacturing device, which includes work chamber, and the control unit being connected with work chamber,
The forging substrate of workpiece can be placed by being provided in work chamber, process unit, and can drive the moving cell of processing unit, movement
Unit is set to the side of forging substrate, and processing unit is located at the side of moving cell, and processes unit position when processing the workpiece
In the top of forging substrate, wherein processing unit includes autokinesis unit to be used for what is sequentially laid on the direction of forging substrate
There is provided the preheating unit of preheating temperature for workpiece surface, forge unit, wire feeder and steel wire storage device, wherein forge unit include can
The forging hammer to pump is formed between forging hammer lower section and workpiece surface and forges area, and wire feeder will be for that will be stored in steel wire storage
Wire in device, which is delivered to, forges area, and forging hammer is moved back and forth forging in area, continuously to be forged to workpiece and wire.
Preferably, including the infrared radiation thermometer for the preheating temperature that can measure workpiece surface in work chamber.
Preferably, including the heated filament device for the wire that can heat wire feeder output in work chamber.
Preferably, further including the temperature measurer for the temperature that can measure the wire after heating in work chamber.
Preferably, work chamber is closed in space or the vacuum chamber that inside is filled with inert gas.
A kind of forging method using the metal smithwelding increasing material manufacturing device as described in any of the above-described technical solution, including
Following steps：
Design machining path：The threedimensional model for generating workpiece, by threedimensional model slicing delamination, and by starting single layer to termination
Single layer is successively read the two-dimensional silhouette information of each single layer, and the three-dimensional shape information of workpiece is converted into a series of two-dimensional silhouettes
Information forms machining path；
Deposition process：Control unit converts the two-dimensional silhouette information for originating single layer to move, moving cell
It drives processing unit to be moved by machining path, workpiece surface is locally heated to set temperature T using preheating unit1, while profit
Wire is heated to set temperature T with heated filament device2, the wire after heating is sent to forging hammer lower section and workpiece by wire feeder
What is formed between surface forges area, wherein the temperature for forging area is higher than set temperature T1, forging hammer forging in area move back and forth pair
Workpiece and wire are continuously forged, so that the two-dimensional silhouette of the single layer is progressively filled, until monolayer deposition is completed；
It is moved to next single layer, then control unit converts the two-dimensional silhouette information of next single layer to move, weight
Multiple deposition process step, until completing the deposition of termination single layer.
Preferably, the wire feed rate of wire feeder in adjusted design machining path step and the movement speed of moving cell
Degree, the temperature for making to forge the wire and workpiece in area forge temperature range T in setting0In, make wire and workpiece
Temperatures approach is identical.
Preferably, during carrying out continuously forging to form forging tissue to workpiece and wire, humidity province is forged
Between T0It is set as the high temperature forging temperature of material identical as workpiece or wire, forges temperature range T0Ceiling temperature be not higher than
The phase transition temperature that workpiece or wire inner alloy tissue are drastically grown up, lower limit temperature is not less than the phase alternating temperature for generating adverse tissue
Degree.
Preferably, when forging hammer forges wire, by wire detachment, wire-feed motor drives wire back suction pre-determined distance,
To avoid pumping for forging hammer.
Preferably, the beating frequency of forging hammer is 1~1000Hz, wherein there are two types of modes for feeding method, first, using perseverance
Fixed cycle, in workpiece and wire, by 1 time or repeatedly after impact, the gap of forging hammer rising carries out wire feed to wire-feed motor；Two are utilized in
The continuous constant cycle repeatedly adds a delay time after impact according to wire feed frequency, to complete wire feed action.
Compared with prior art, the advantages of the present invention are：
1, the material internal microscopic structure that the manufacturing method obtains is forging tissue (Deformation structure), and crystal grain is thin, mechanical property
Can be excellent, and be not in that stomata etc. welds common metallurgical imperfection, metal increasing material manufacturing part performance can be greatly improved
Reliability and consistency；
2, the manufacturing method directly realizes the metal material being sent into and workpiece shape without melting material by continuously forging
It is combined between atom, to make machine tool structure simplify, while substantially reducing lathe cost, heat input can be significantly reduced,
Reduce stress and deformation；
3, compared with the raw material entirety forging stock of forging, by metal material by the way of synchronous continuous supplementation in this method
It is delivered to and forges area and continuously forged with workpiece.
Description of the drawings
Fig. 1 is the structural schematic diagram of metal smithwelding increasing material manufacturing device provided by the invention；
Fig. 2 is the side view of machining area provided by the invention；
In above each figure：
1, control system, 2, work chamber, 3, X to motion, 4, workbench, 5, Z-direction motion, 6, Y-direction fitness machine
Structure, 7, infrared radiation thermometer, 8, preheating unit, 9, forge unit, 10, steel wire storage device, 11, wire-feed motor, 12, heated filament device, 13, thermometric
Instrument, 14, wire feeding guiding tube, 15, forging hammer, 16, wire, 17, workpiece, 18, forging substrate, 19, machined path, 20, directly add
Hot-zone, 21, high-temperature region, 22, forge area.
Specific implementation mode
In the following, the present invention is specifically described by illustrative embodiment.It should be appreciated, however, that not into one
In the case of step narration, element, structure and features in an embodiment can also be advantageously incorporated into other embodiment
In.
In the description of the present invention, it should be noted that the instructions such as term "inner", "outside", "upper", "lower", "front", "rear"
Orientation or positional relationship be position relationship based on ... shown in the drawings, be merely for convenience of description of the present invention and simplification of the description, and
It is not that the device of instruction or hint meaning or element must have a particular orientation, with specific azimuth configuration and operation, therefore
It is not considered as limiting the invention.In addition, term " first ", " second ", " third " are used for description purposes only, and cannot manage
Solution is instruction or implies relative importance.
Referring to Fig. 1, the present invention provides a kind of metal smithwelding increasing material manufacturing device, which includes work chamber 2, Yi Jiyu
The connected control unit 1 of work chamber 2 is provided with the forging substrate 18 that can place workpiece 17 in work chamber 2, processes unit, and
The moving cell of processing unit, moving cell can be driven to be set to the side of forging substrate 18, processing unit is located at moving cell
Side, and process unit in workpieces processing 17 positioned at forging substrate 18 top, wherein processing unit include autokinesis list
That is sequentially laid in member to the direction of forging substrate 18 is used to provide the preheating unit 8 of preheating temperature for 17 surface of workpiece, forge
Unit 9, wire feeder 10 and steel wire storage device 10, wherein it includes the forging hammer 15 that can be pumped, 15 lower section of forging hammer to forge unit 9
It is formed between 17 surface of workpiece and forges area, wire feeder 10 is forged for the wire being stored in steel wire storage device 10 to be delivered to
Area, forging hammer 15 is moved back and forth forging in area, continuously to be forged to workpiece 17 and wire.
In above-mentioned apparatus, control unit 1 can control whole device according to human-computer interaction instruction or automatic running program
Operation.The device includes a moving cell, which moved from X to motion 3, Y-direction motion 6 and Z-direction
The three-dimensional motion unit that mechanism 5 is constituted.The three-dimensional motion unit is loaded with processing unit, three-dimensional by the control of control unit 1
Moving cell can drive processing unit to carry out spatial movement, to be operated to workpiece 17 and intermetallic composite coating raw material.
In above-mentioned apparatus, processing unit includes preheating unit 8, forge unit 9, wire feeder 10 and steel wire storage device 10 etc. are several
Part, in processing, processing unit is located at the top of workpiece 17, when non-processing, is not then fixed to the position for processing unit
It is required that.If in the stem portion that processing unit 8 includes, preheating unit can carry out the part on 17 surface of workpiece region to be processed pre-
Heat, the mode of heating can also pass through electron beam, laser, electric arc, plasma arc etc. by electromagnetic induction.Forge list
Member 9 can provide it is high-frequency controllably forge power, by forging hammer effect workpiece 17 and intermetallic composite coating raw material, such as on wire.Forging
There are many kinds of the type of drive for beating unit 9, such as electromagnetic force, hydraulic pressure, compressed air, mechanical, ultrasonic impact etc., type of drive
It can be selected according to different material and technique, to provide corresponding forging force and forge frequency.Steel wire storage device 10 is storage
The device of wire, structure type can be Wheel-type, material storage tube etc..Wire-feed motor 11 then by electrode drive, is clamped by roller
Wire, driving wire move back and forth, and realize accurate quantification charging via wire feeding guiding tube 14；Wire feeding mode is pulsating,
Need the impact coordinate movement with forging hammer.
Here it should be noted that, the forging substrate used in device is the supporter for implementing to increase material, accepts stack shaping
Metal, be material of the same race with wire, while forging the part that substrate can also be 17 ontology of workpiece.
In above-mentioned apparatus, in order to preferably measure the preheating temperature of 17 surface of workpiece reception, the packet in work chamber 2
Include the infrared radiation thermometer 7 of the preheating temperature of 17 surface of measurable workpiece reception.Described herein to be, in the present apparatus, preheating is single
Member, infrared radiation thermometer 7 combine the closed-loop control that may be implemented that spot temperature is preheated to workpiece 17 with control unit three, such as can
The temperature range for needing to keep first is set by control unit, then infrared radiation thermometer 7 can detect the temperature of preheating zone in real time, when
When the temperature detected is less than the minimum temperature being arranged, preheating unit persistently preheats；When the temperature detected is higher than setting most
When high-temperature, preheating unit stops preheating.
In order to make wire feeder convey wire temperature and preheating after 17 surface local temperature of workpiece be adapted,
Include the heated filament device for the wire that can heat the output of wire feeder 10 in work chamber 2 and in suitably forging in temperature range
12.It should be noted that in the present apparatus, the core component of heated filament device is electromagnetic induction coil, can be by the gold of coil inside
Belong to silk heating, wire after heating can be exported via heat safe ceramics or copper wire feeding guiding tube, with workpiece 17 in forging hammer
Forging in area for being formed between 17 surface of lower section and workpiece is continuously forged.
Further include that can measure heating in order to preferably detect the temperature of wire, in work chamber 2 in above-mentioned apparatus
The temperature measurer 13 of the temperature of wire afterwards.It should be noted that combined with control unit three can be with for heated filament device, temperature measurer 13
It realizes the closed-loop control to wire temperature, such as the temperature range for needing to keep can be first set by control unit, then survey
Warm instrument 13 can real-tirne metal silk temperature, when the temperature detected less than setting minimum temperature when, heated filament device continuous heating；When
When the temperature detected is higher than the maximum temperature being arranged, heated filament device stops heating.
In above-mentioned apparatus, in order to prevent metal material from the harmful chemicals reaction such as oxidation, nitridation, work chamber 2 occurs
Be filled with the closed in space of inert gas for inside, can play a good protective effect in this way to the metal of high temperature state, to for
Entire manufacturing device provides safeguard function.
The present invention also provides a kind of forging sides using the metal smithwelding increasing material manufacturing device as described in above-described embodiment
Method includes the following steps：
S1 designs machining path：The threedimensional model for generating workpiece, by threedimensional model slicing delamination, and by starting single layer to end
Only single layer is successively read the two-dimensional silhouette information of each single layer, and the three-dimensional shape information of workpiece, which is converted into a series of two dimensions, takes turns
Wide information forms machining path；
S2 deposition process：Control unit converts the two-dimensional silhouette information for originating single layer to move, and movement is single
Member drives processing unit to be moved by machining path, and workpiece surface is locally heated to set temperature T using preheating unit1, simultaneously
Wire is heated to set temperature T using heated filament device2, the wire after heating is sent to forging hammer lower section and work by wire feeder
What is formed between part surface forges area, wherein the temperature for forging area is higher than set temperature T1, forging hammer moves back and forth forging in area
Workpiece and wire are continuously forged, so that the two-dimensional silhouette of the single layer is progressively filled, until monolayer deposition is completed；
S3 is moved to next single layer, and then control unit converts the two-dimensional silhouette information of next single layer to move,
Step S2 is repeated, until completing the deposition of termination single layer.
In above-mentioned deposition process, with reference to Fig. 2, the part of workpiece surface directly heats area 20 and is being preheated list
Member is heated to temperature T1, since workpiece is mobile and heat transfer, high-temperature region 21 is formed in its rear, area 22 is forged and is in high-temperature region 21
It is interior, and workpiece forge area 22 and heating after wire (initial preheating temperature T2) it is continuous under the reciprocating motion of iron hammer
It forges.Wherein, the temperature of high-temperature region 21 can be higher than by directly heating the temperature in area 20, and this is mainly due to directly heat area 20 and heat
It the position of silk device and forges area and has certain distance, be higher than high-temperature region 21 therefore, it is necessary to which the temperature setting in area 20 will be directly heated
Temperature, and coordinate with workpiece thermophysical property and kinematic parameter, to ensure to forge the temperature of wire and workpiece in area
In reasonably forging temperature range T0It is interior.
In the above-mentioned methods, the movement of the wire feed rate and moving cell of the wire feeder in adjusted design machining path step
Speed, the temperature for making to forge the wire and workpiece in area forge temperature range T in setting0In.Specifically, to workpiece
And wire continuously forge during forming forging tissue, forges temperature range T0It can refer to and workpiece or wire
The high temperature forging temperature range of identical material.
In the above-mentioned methods, the application is to forging temperature range T0Ceiling temperature and lower limit temperature be defined,
This forges temperature range and is more advantageous to workpiece surface part forges operation with wire, is combined with being formed between atom.With two-phase
For titanium alloy, to forging temperature range T0It illustrates：Fine grained texture in order to obtain avoids under high temperature in workpiece or wire
Portion's alloy structure crystal grain is drastically grown up, and temperature range T is forged0Ceiling temperature should be not higher than β phase phase transition temperatures, i.e. alpha+beta phase region
Ceiling temperature；T0Lower limit temperature should be not less than generate adverse tissue phase transition temperature, that is, be higher than alpha+beta phase region lower limit temperature.T0
It usually should be at the top of alpha+beta phase region temperature.Need further exist for explanation, the temperature T for directly heating area 20 of workpiece1, with
And the heating temperature T of wire2β phase phase transition temperatures are not to be exceeded.
In the above-mentioned methods, when forging hammer forges wire, by wire detachment, wire-feed motor drive wire back suction default away from
From to avoid pumping for forging hammer.Wherein, pre-determined distance is not a fixed range, but according to past above and below forging hammer
Set by distance below the frequency and forging hammer that move again apart from workpiece surface, in order to make wire not with work
In the case that part is continuously forged, pumping for forging hammer can be avoided.
In addition, another consideration is wire feed time and the feeding method of wire, it is generally the case that the impact frequency of forging hammer
Rate is within the scope of 1~1000Hz, wherein there are two types of wire feeding modes, first, using the constant cycle, wire-feed motor is in workpiece and wire
By 1 time or repeatedly after impact, the gap of forging hammer rising carries out wire feed；After two are utilized in the multiple impact of continuous constant cycle, according to
Wire feed frequency adds the mode of a delay time, to complete wire feed action.Wherein, the delay time and non-constant week being previously mentioned
Phase, but the period added between multiple constant cycles, which can according to circumstances be adjusted, as long as can
Complete wire feed action.
Claims (10)
1. a kind of metal smithwelding increasing material manufacturing device, which is characterized in that the device includes work chamber (2), and with work chamber (2)
Connected control unit, work chamber (2) is interior to be provided with the forging substrate (18) that can place workpiece (17), processes unit, Yi Jike
The moving cell of processing unit, moving cell is driven to be set to the side of forging substrate (18), processing unit is located at moving cell
Side, and process unit at workpieces processing (17) be located at forging substrate (18) top, wherein processing unit include from transport
The preheating list for providing preheating temperature for workpiece (17) surface sequentially laid on moving cell to the direction for forging substrate (18)
First (8) forge unit (9), wire feeder (10) and steel wire storage device (10), wherein it includes that can pump to forge unit (9)
Forging hammer (15) is formed between forging hammer (15) lower section and workpiece (17) surface and forges area, and wire feeder (10) will be for that will be stored in
Wire (16) in silk device (10), which is delivered to, forges area, and forging hammer (15) is moved back and forth forging in area, with to workpiece (17) and
Wire (16) is continuously forged.
2. metal smithwelding increasing material manufacturing device according to claim 1, it is characterised in that：Include that can survey in work chamber (2)
Measure the infrared radiation thermometer (7) of workpiece (17) surface preheating temperature.
3. metal smithwelding increasing material manufacturing device according to claim 1, it is characterised in that：Include that can add in work chamber (2)
The heated filament device (12) of the wire of hot wire feeder (10) output.
4. metal smithwelding increasing material manufacturing device according to claim 3, it is characterised in that：Further including in work chamber (2) can
Measure the temperature measurer (13) of the temperature of the wire after heating.
5. according to claim 1-4 any one of them metal smithwelding increasing material manufacturing devices, it is characterised in that：Work chamber (2) is
Inside is filled with closed in space or the vacuum chamber of inert gas.
6. a kind of forging method using metal smithwelding increasing material manufacturing device as described in any one in claim 1-5, feature
It is, includes the following steps：
Design machining path：The threedimensional model for generating workpiece, by threedimensional model slicing delamination, and by starting single layer to terminating single layer
It is successively read the two-dimensional silhouette information of each single layer, the three-dimensional shape information of workpiece, which is converted into a series of two-dimensional silhouettes, to be believed
Breath forms machining path；
Deposition process：Control unit converts the two-dimensional silhouette information for originating single layer to move, and moving cell drives
It processes unit to move by machining path, workpiece surface is locally heated to set temperature T using preheating unit1, while utilizing heat
Wire is heated to set temperature T by silk device2, the wire after heating is sent to forging hammer lower section and workpiece surface by wire feeder
Between formed forge area, forging hammer continuously forges workpiece and wire forging to move back and forth in area, so that the single layer
Two-dimensional silhouette be progressively filled, until monolayer deposition complete；
It is moved to next single layer, then control unit converts the two-dimensional silhouette information of next single layer to move, and it is heavy to repeat
Product process steps, until completing the deposition of termination single layer.
7. forging method according to claim 6, which is characterized in that wire feeder in adjusted design machining path step
The movement velocity of wire feed rate and moving cell, the temperature for making to forge the wire and workpiece in area forge temperature in setting
Section T0In, keep wire identical with the temperatures approach of workpiece.
8. forging method according to claim 7, which is characterized in that be formed to workpiece and wire continuously forge
During forging tissue, temperature range T is forged0It is set as the high temperature forging temperature of material identical as workpiece or wire, forges
Beat temperature range T0Ceiling temperature be not higher than the phase transition temperature drastically grown up of workpiece or wire inner alloy tissue, lower limit temperature
Degree is not less than the phase transition temperature for generating adverse tissue.
9. forging method according to claim 6, which is characterized in that when forging hammer forges wire, wire detachment is sent
Silk machine drives wire back suction pre-determined distance, to avoid pumping for forging hammer.
10. forging method according to claim 9, which is characterized in that the beating frequency of forging hammer is 1~1000Hz, wherein
There are two types of wire feeding modes, first, using the constant cycle, in workpiece and wire, by 1 time or repeatedly after impact, forging hammer rises wire-feed motor
Gap carry out wire feed；After two are utilized in the multiple impact of continuous constant cycle, a delay time is added according to wire feed frequency,
To complete wire feed action.
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