CN109365819A - A kind of melting condensation integrated 3D printing device and method of metal material - Google Patents
A kind of melting condensation integrated 3D printing device and method of metal material Download PDFInfo
- Publication number
- CN109365819A CN109365819A CN201811562650.XA CN201811562650A CN109365819A CN 109365819 A CN109365819 A CN 109365819A CN 201811562650 A CN201811562650 A CN 201811562650A CN 109365819 A CN109365819 A CN 109365819A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- inert gas
- spray orifice
- test specimen
- liquid metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention relates to metal material 3D printing technique fields, in particular to the melting condensation integrated 3D printing device and method of a kind of metal material, including nozzle, liquid metal feeding mechanism, oxidation, cooling device, three-dimension numerical controlled workbench and control device, the channel flowed through for liquid metal is equipped in nozzle, its spray orifice is towards three-dimension numerical controlled workbench, the piezoelectric ceramics of surrounding is located at the outlet ends of spray orifice, test specimen for printing is set to three-dimension numerical controlled workbench, it is corresponding with spray orifice, liquid metal feeding mechanism is connected to nozzle passage, oxidation sprays inert gas, around spray orifice and spray orifice between test specimen formed inert gas gas curtain, cooling device sprays cooling gas, the injection direction of cooling gas is directed at test specimen, control device controls nozzle, liquid metal feeding mechanism, oxidation, three Tie up numerical control table, NC table and cooling device movement.
Description
Technical field
The present invention relates to metal material 3D printing technique field, in particular to the melting condensation integrated of a kind of metal material
3D printing device and method.
Background technique
3D printing and other fast shaping technologies are quickly grown, and just current technological principle used and method are more confined to
Practical want is not achieved in nonmetallic such as polymeric material field, the mechanical performance index such as made mold strength, hardness, toughness
It asks.
The 3D printing of metal material field and other quick forming methods use high energy beam substantially, as laser beam, electron beam,
Ion beam etc. is to the bonding of metal powder material, local welding or selective sintering, and model or part obtained are in hardness, resistance to
Mill property, tensile strength, bending strength, anti-torsional strength and the receiving performance indicators such as dynamic loading or vibratory impulse can not reach reality
Degree and level.They often have following technical problem:
1. metal-powder sintering needs certain heat absorption time, the speed of rapid shaping is influenced.
2. only short grained metal-powder edge is welded together for existing metal-powder sintering, make mould obtained
Type or part, hardness, wearability and in terms of performance indicator it is not ideal enough.
3. it is easy to happen oxidation, therefore model obtained or part to the process before solidification after metal-powder sintering,
Hardness, wearability and intensity etc. performance indicator are not ideal enough.
Summary of the invention
For the technical problems in the prior art, an object of the present invention is: providing a kind of melting for metal material
Melt condensation integrated 3D printing device, use liquid metal for rapid prototyping material, can rapidly metal injection drop and
It is quickly cooled down molten drop, and prevents the molten drop sprayed from aoxidizing before solidification.
For the technical problems in the prior art, the second object of the present invention is to: a kind of the molten of metal material is provided
Melt condensation integrated 3D printing method, it is strong in hardness, wearability, tension using Method of printing model obtained or part
Degree, bending strength, anti-torsional strength and the receiving performance indicators such as dynamic loading or vibratory impulse can reach practical degree and level.
In order to achieve the above object, the present invention adopts the following technical scheme:
A kind of melting condensation integrated 3D printing device of metal material, including nozzle, liquid metal feeding mechanism, oxygen
Makeup is set, cooling device, three-dimension numerical controlled workbench and control device, and the channel flowed through for liquid metal is equipped in nozzle,
For spray orifice towards three-dimension numerical controlled workbench, the piezoelectric ceramics of surrounding is located at the outlet ends of spray orifice, and the test specimen for printing is set to three
It ties up on numerical control table, NC table, corresponding with spray orifice, liquid metal feeding mechanism is connected to nozzle passage, and oxidation is set around spray orifice
It sets, oxidation sprays inert gas, and around spray orifice and spray orifice is filled to inert gas gas curtain, cooling is formed between test specimen
It is arranged in the side of nozzle, cooling device sprays cooling gas, and the injection direction of cooling gas is directed at test specimen, control device control
Nozzle, liquid metal feeding mechanism, oxidation, three-dimension numerical controlled workbench and cooling device movement.Use liquid metal for
Rapid prototyping material, saves the time of metal-powder sintering, and liquid metal can be obtained than metal-powder between better metallographic
Fusion.Piezoelectric ceramics deformation occurs squeeze liquid metal quickly liquid metal can be sprayed, movement speed can be cooperated faster
Three-dimension numerical controlled workbench, print speed is faster.The setting of oxidation so that molten drop after spray orifice ejection with examination
It is not oxidized before part fusion solidification, ensure that metallographic solidifies and the components with performances such as better intensity, hardness.Cooling device
It can speed up frozen metal drop, so that solidification rate matches with three-dimension numerical controlled moving speed of table, it is ensured that out of anti-
The molten drop in oxidation protection area return to or close to room temperature and it is not oxidized, and improve printing effect.
Further, oxidation includes inert gas injection apparatus and inert gas feeding mechanism, inert gas injection
Device is connected to inert gas feeding mechanism, and inert gas injection apparatus is arranged around spray orifice.After this structure, ejection
Inert gas has constructed one of inert gas shielding gas curtain for molten drop, has completely cut off molten drop around the spray orifice of nozzle
Air, high-temperature oxydation before preventing it from solidifying.
Further, inert gas injection apparatus includes inert gas circulation channel and the runner intensively arranged, indifferent gas
Body circulation channel is connected to inert gas feeding mechanism with the runner intensively arranged respectively, and each runner is equipped with outgoing
Portion, exit portion direction are directed at test specimen, form array around spray orifice.After this structure, the inert gas of ejection is in spray orifice week
It encloses and spray orifice is to inert gas gas curtain is formed between test specimen, so that molten drop is completely cut off air, high-temperature oxydation before preventing it from solidifying.
Further, inert gas circulation channel and runner are set in nozzle wall.Inertia is made using this structure
Gas injection apparatus and nozzle are closely linked, compact-sized, without setting inert gas injection apparatus and nozzle every time
Relative position i.e. can be used, it is convenient and efficient.
Further, cooling device includes jet pipe and cooling gas feeding mechanism, and jet pipe is connected to cooling gas feeding mechanism,
The injection direction of jet pipe is directed at test specimen.After this structure, cooling device can speed up frozen metal drop, so that solidification speed
Rate matches with three-dimension numerical controlled moving speed of table, it is ensured that returns to out of the molten drop in protection against oxidation area or close to often
It is warm and not oxidized, and improve printing effect.
Further, jet pipe is movably connected on nozzle wall, between the distance between jet pipe and nozzle and jet pipe and test specimen
Distance it is adjustable.After this structure, jet pipe can adjust position with close to nozzle jeting area, molten drop with
The fusion of test specimen, which solidifies to obtain, to be forced to cool down and accelerated solidification, obtains optimal cooling effect.
Further, nozzle wall protrudes outward to form lug, and lug is equipped with the long stripes through hole extended to nozzle side, spray
Pipe is movably connected in long stripes through hole, being capable of distance, spray between distance and jet pipe and test specimen between adjustable jet tube and nozzle
Pipe is removably attachable to lug.After this structure, jet pipe can easily adjust upper and lower or left-right position, make jet pipe
Jeting area of the spout close to nozzle.The installation and removal of jet pipe are convenient.
Further, liquid metal feeding mechanism includes the internal crucible that can accommodate liquid metal, and inner surface of crucible is equipped with resistance to
Fiery heat insulation layer, crucible are equipped with lid, and crucible bottom is equipped with the conduit being connected to nozzle passage.Crucible can storing liquid metal, and
Required liquid metal is provided to carry out rapid shaping by conduit for nozzle.
Further, conduit is equipped with flow regulator.After this structure, can by flow regulator adjust from
Crucible flows to the liquid metal flux of nozzle, to cooperate the speed of liquid metal jet.
A kind of melting condensation integrated 3D printing method of metal material, includes the following steps, liquid metal feeding mechanism
Liquid metal is provided for nozzle；Piezoelectric ceramics drives liquid metal in nozzle to spray to form molten drop from spray orifice, three-dimension numerical controlled
Movement and the frequency match with piezoelectric ceramics pulse voltage under the workbench control of Special stereoscopic delamination software on computers；It is anti-
Oxidation unit sprays inert gas around spray orifice, and the setting of oxidation melts molten drop after spray orifice ejection with test specimen
It is preceding not oxidized to close solidification；Cooling device sprays cooling gas and is quickly cooled down the molten drop merged with test specimen.The present invention uses
Liquid metal is rapid prototyping material, rapidly metal injection drop and can be quickly cooled down molten drop, and prevent from spraying
Molten drop merged with test specimen solidification before oxidation.Model or part obtained are in hardness, wearability, tensile strength, anti-
Curved intensity, anti-torsional strength and the receiving performance indicators such as dynamic loading or vibratory impulse can reach practical degree and level.
Generally speaking, the present invention has the advantage that
It uses liquid metal for rapid prototyping material, saves the time of metal-powder sintering, liquid metal compares metal powder
Physical efficiency obtains the fusion between better metallographic.Piezoelectric ceramics deformation occurs squeeze liquid metal quickly liquid metal can be sprayed
Out, movement speed three-dimension numerical controlled workbench faster can be cooperated, print speed is faster.The setting of oxidation is so that metal
Drop is not oxidized before merging solidification with test specimen after spray orifice ejection, ensures metallographic solidification and has better intensity, hardness
Etc. performances components.Cooling device can speed up frozen metal drop, so that solidification rate and three-dimension numerical controlled movable workbench
Speed matches, it is ensured that returned to out of the molten drop in protection against oxidation area or close to room temperature and it is not oxidized, and improve
Printing effect.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the melting condensation integrated 3D printing device of metal material of the present invention.
Wherein include in Fig. 1:
1 --- --- piezoelectric ceramics, 12 --- the first fireproof heat-insulating layer, 13 --- lug of nozzle, 11；
21 --- connector, 22 --- circulation channel, 23 --- runner, 231 --- exit portion,
24 --- inert gas gas curtain；
3 --- liquid metal；
4 --- molten drop；
51 --- jet pipe, 52 --- cooling gas；
6 --- three-dimension numerical controlled workbench, 61 --- backing plates；
7 --- printing test specimen；
8 --- crucible, 81 --- the second fireproof heat-insulating layer, 82 --- lid, 821 --- handle,
822 --- pin shaft；
9 --- conduit, 91 --- flow regulators.
Specific embodiment
It is next below that the present invention will be further described in detail.
As shown in Figure 1, a kind of melting condensation integrated 3D printing device of metal material, including nozzle 1, liquid metal 3
Feeding mechanism, oxidation, cooling device, three-dimension numerical controlled workbench 6 and control device, nozzle 1 is interior to be equipped with for liquid gold
Belong to 3 channels flowed through, for spray orifice towards three-dimension numerical controlled workbench 6, the piezoelectric ceramics 11 of surrounding is located at the outlet ends of spray orifice, uses
It is set on three-dimension numerical controlled workbench 6 in the test specimen of printing, corresponding with spray orifice, 3 feeding mechanism of liquid metal and 1 channel of nozzle connect
Logical, oxidation is arranged around spray orifice, and oxidation sprays inert gas, and around spray orifice and spray orifice is between test specimen
Inert gas gas curtain 24 is formed, cooling device is set to the side of nozzle 1, and cooling device sprays cooling gas 52, cooling gas 52
Injection direction be aligned test specimen, control device control nozzle 1,3 feeding mechanism of liquid metal, oxidation, three-dimension numerical controlled work
Make platform 6 and cooling device movement.It uses liquid metal for rapid prototyping material, saves the time of metal-powder sintering, liquid
Metal 3 can obtain the fusion between better metallographic than metal-powder.Pulse voltage is applied to piezoelectric ceramics 11, brings it about deformation
It squeezes liquid metal 3 and generates high pressure, quickly liquid metal 3 can be sprayed, movement speed can be cooperated three-dimension numerical controlled faster
Workbench 6, print speed is faster.The setting of oxidation is so that molten drop 4 is merging admittedly after spray orifice ejection with test specimen
It is not oxidized before changing, ensure that metallographic solidifies and the components with performances such as better intensity, hardness.Cooling device can speed up
Frozen metal drop 4, so that solidification rate matches with three-dimension numerical controlled 6 movement speed of workbench, it is ensured that out of anti-oxidation guarantor
The molten drop 4 in shield area return to or close to room temperature and it is not oxidized, and improve printing effect.
Nozzle 1 can be made of refractory ceramics, for example boron carbide, high heat resistance reach 2000 DEG C or more.Spray
The first fireproof heat-insulating layer 12 is equipped in mouth 1, to accommodate the liquid metal 3 of high temperature.
Piezoelectric ink jet is using piezoelectric ceramics 11 (most material is lead Pb, zirconium Zr or tantalum Ta), by piezoelectric crystal
Applying voltage makes it generate deformation, squeezes liquid and generates high pressure and spray liquid.Gold can be effectively adjusted by control voltage
The size and usage mode for belonging to drop 4, to obtain higher printing precision and printing effect.Apply the frequency tune of pulse voltage
Adjusting range is wide, it should match with three-dimension numerical controlled 6 horizontal movement velocity of workbench, could obtain optimal forming efficiency, shape
Precision and surface roughness.The present invention is adapted to three-dimension numerical controlled workbench 6, the linkage of chpn software, and target is molten drop 4
Nonvoluntary sinuous flow, disorderly drop, spray completely " submitting onself to someone's direction ".
Oxidation includes inert gas injection apparatus and inert gas feeding mechanism, inert gas injection apparatus and lazy
Property gas supply device connection, inert gas injection apparatus around spray orifice be arranged.After this structure, the inert gas of ejection
Around the spray orifice of nozzle 1, one of inert gas shielding gas curtain is constructed for molten drop 4, molten drop 4 is made to completely cut off air,
High-temperature oxydation before preventing it from solidifying.
Inert gas injection apparatus includes inert gas circulation channel 22 and the runner intensively arranged 23, inert gas ring
Circulation road 22 is connected to inert gas feeding mechanism with the runner 23 intensively arranged respectively, and each runner 23 is equipped with outgoing
Portion 231,231 direction of exit portion are directed at test specimen, form array around spray orifice.After this structure, the inert gas of ejection exists
Around spray orifice and spray orifice is to inert gas gas curtain 24 is formed between test specimen, so that molten drop 4 is completely cut off air, before preventing it from solidifying
High-temperature oxydation.
Inert gas circulation channel 22 and runner 23 are set in 1 side wall of nozzle.Indifferent gas is made using this structure
Body injection apparatus and nozzle 1 are closely linked, compact-sized, without setting inert gas injection apparatus and nozzle 1 every time
Relative position i.e. can be used, it is convenient and efficient.
In the present embodiment, inert gas connector 21 is fixed by screw thread and nozzle 1, and one end connects noble gas source (figure
In be not shown), other end connection inert gas circulation channel 22, each inert gas runner 23 intensively opened up along axial direction
With 22 connection of inert gas circulation channel.In this way, inert gas is formed after circulation channel 22 and runner 23 around spray orifice
Inert gas gas curtain 24 plays the role of that molten drop 4 is made to completely cut off air, prevents high-temperature metal drop 4 from aoxidizing.
Cooling device includes 52 feeding mechanism (not shown) of jet pipe 51 and cooling gas, jet pipe 51 and cooling gas 52
The injection direction of feeding mechanism connection, jet pipe 51 is directed at test specimen.After this structure, cooling device can speed up solidification and examination
The molten drop 4 of part fusion, so that solidification rate matches with three-dimension numerical controlled 6 movement speed of workbench, it is ensured that out of oxygen
The molten drop 4 of esd protective region return to or close to room temperature and it is not oxidized, and improve printing effect.
Jet pipe 51 is movably connected on 1 side wall of nozzle, between the distance between jet pipe 51 and nozzle 1 and jet pipe 51 and test specimen
Distance it is adjustable.After this structure, jet pipe 51 can adjust position close to the jeting area of nozzle 1, molten metal
Drop 4 with test specimen merge solidify to obtain pressure cool down and accelerated solidification, obtain optimal cooling effect.
1 side wall of nozzle protrudes outward to form lug 13, and lug 13 is equipped with the long stripes through hole extended to 1 side of nozzle, spray
Pipe 51 is movably connected in long stripes through hole, can be between adjustable jet tube 51 and nozzle 1 between distance and jet pipe 51 and test specimen
Distance, jet pipe 51 are removably attachable to lug 13.After this structure, jet pipe 51 can easily adjust upper and lower or left and right
Position makes the spout of jet pipe 51 close to the jeting area of nozzle 1.The installation and removal of jet pipe 51 are convenient.
In the present embodiment, lug 13 is equipped with vertical long stripes through hole, and jet pipe 51 passes through long stripes through hole and can be in length
It above and below in strip through-hole or horizontally slips, jet pipe 51 is fixed in lug 13 by fixture nut.
52 injection apparatus of cooling gas, inert gas injection apparatus and 3 injection apparatus of liquid metal based on nozzle 1 and
Supportive body so that these three autonomous systems accomplish it is highly integrated, compact-sized.
3 feeding mechanism of liquid metal includes the internal crucible 8 that can accommodate liquid metal 3, and it is exhausted that 8 inner surface of crucible is equipped with fire resisting
Thermosphere, crucible 8 are equipped with lid 82, and 8 bottom of crucible is equipped with the conduit 9 being connected to 1 channel of nozzle.Crucible 8 can storing liquid metal
3, and be that nozzle 1 provides required liquid metal 3 to carry out rapid shaping by conduit 9.
Heating can be concentrated using common electric heating, coal heating, combustion gas or fuel oil, eliminate laser beam, electron beam, from
Beamlet, plasma etc. are expensive and are difficult to the heat source safeguarded, degree that the device is complicated reduces, and operation and maintenance cost is all less expensive.
In the present embodiment, 3 feeding mechanism of liquid metal include 8 shell of crucible, the second fireproof heat-insulating layer 81, lid handle 821,
Lid 82 and pin shaft 822.8 shell of crucible is inlayed with the second fireproof heat-insulating layer 81 to be poured, lid 82 and the second fireproof heat-insulating
Layer 81 can be used and is mechanically fixed.
Conduit 9 is equipped with flow regulator 91.After this structure, it can be adjusted by flow regulator 91 from earthenware
Crucible 8 flows to 3 flow of liquid metal of nozzle 1, with the speed for cooperating liquid metal 3 to spray.
In the present embodiment, 3 conduit 9 of liquid metal and flow regulator 91 connect 3 feeding mechanism of liquid metal and nozzle
1, feed flow is on the one hand completed, flow adjusting is on the other hand played and control action, certain 3 conduit of liquid metal, 9 appearance is equally wrapped
Heat-insulating material is covered, interior surface roughness requirements are down to Ra0.1 hereinafter, guaranteeing that liquid metal 3 flows smoothness, after flowing not
It is detained liquid metal 3.
A kind of melting condensation integrated 3D printing method of metal material, includes the following steps, 3 feeding mechanism of liquid metal
Liquid metal 3 is provided for nozzle 1；Piezoelectric ceramics 11 drives liquid metal 3 in nozzle 1 to spray to form molten drop 4 from spray orifice, and three
Tie up movement and the frequency with 11 pulse voltage of piezoelectric ceramics under the control of Special stereoscopic delamination software on computers of numerical control table, NC table 6
Rate cooperation；Oxidation sprays inert gas around spray orifice, and the setting of oxidation is so that molten drop 4 is sprayed from spray orifice
It is not oxidized before merging solidification with test specimen afterwards；Cooling device sprays cooling gas 52 and is quickly cooled down the molten metal merged with test specimen
Drop 4.The present invention uses liquid metal 3 for rapid prototyping material, can rapidly metal injection drop 4 and be quickly cooled down molten metal
Drop 4, and prevent the molten drop 4 sprayed oxidation before merging solidification with test specimen.Model or part obtained, hardness,
Wearability, tensile strength, bending strength, anti-torsional strength and the receiving performance indicators such as dynamic loading or vibratory impulse can reach practical
Degree and level.
The existing heating of the present invention, heat-insulation system, and have cooling, coagulation system, contradictory two aspects are organically unified
And it is integrated to one.Heating does not use high energy beams modes such as " three beams " (electron beam, ion beam, laser beams) costly, gold
The fusing for belonging to material, which can be used, casts smelting furnace (or high-frequency induction heating) sufficiently melting, and liquid metal 3 is into high temperature resistant and controllably
Nozzle 1 accomplishes that metallographic between metal material drop combines in conjunction with three-dimension numerical controlled workbench 6 so that product reach hardness,
The all preferable utility function part of the mechanical performances such as intensity quickly manufactures.Target is to start the new Forming Theory of 3D printing and development
A whole set of is compact-sized, rationally distributed, widely used out and can produce the Rapid Prototyping Metal components of common function.
Tri- axis of X, Y, Z of three-dimension numerical controlled workbench 6 by three independent Serve Motor Controls, controls signal and derives from respectively
Special stereoscopic delamination software on computer, backing plate 61 are fixed on three-dimension numerical controlled workbench 6, and are done with three-dimension numerical controlled workbench 6
X, Y, Z three-dimensional are mobile.
Compared with existing metal-powder 3D printing technique, main advantages of the present invention and effect have:
1. low in cost: it eliminates the valuableness such as laser beam, electron beam, ion beam, plasma and is difficult to the heat source safeguarded,
Heating is concentrated using common electric heating, coal heating, combustion gas or fuel oil, it is low in cost.Degree that the device is complicated reduces, and uses and ties up
It is all less expensive to protect cost.
2. forming efficiency is higher: on the one hand, existing metal-powder sintering needs the time of absorbing heat, and molten metal of the invention
Drop 4 directly drips speed faster, three-dimension numerical controlled workbench 6 can be allowed higher in horizontal plane movement speed, same delamination area can
It is finished with faster covering；On the other hand, what the diameter of molten drop 4 can be melted than metal-powder is bigger, saves working hour.
3. parts quality is more preferable: as melting casting than weldment quality it is higher, molten drop 4 reaches between metallographic
Fusion, and only short grained metal-powder edge is welded together for the sintering of existing metal-powder.The present invention
Isolation oxidation protection make the combination of storeroom purer, so product density, intensity, hardness, it is antifatigue destruction and
The indexs such as resistance to corrosion can all be greatly improved；Coarse particle, thus more light will not be presented in terms of surface roughness
It is sliding.If desired subsequent polishing, tissue also can be finer and closely woven and smooth.
4. the operation is more convenient: not needing in addition to learn using the prior arts, operators such as existing 3D delamination softwares.
The present invention will be able to smoothly implement to need to be equipped with small-sized metal melting furnace, utilize the 3D delamination software of existing maturation
And it is adapted to computer.Other existing 3D printers can also be purchased to carry out repacking realization in market, possible cost is lower；Or
Person is that core develops completely new type with the present invention.
The course of work of the invention:
The backing plate 61 for being used for bearing metal drop 4 is placed on three-dimension numerical controlled workbench 6, under backing plate 61 is located at nozzle 1 just
Side.Printing test specimen 7 is placed on backing plate 61.Flow regulator 91 is adjusted, makes the inner liquid metal 3 of crucible 8 with speed stream appropriate
Into nozzle 1.Pulse voltage applied to the upper and lower surfaces of piezoelectric ceramics 11, deformation occurs squeezes liquid gold for piezoelectric ceramics 11
Belong to 3, spray liquid metal 3 from spray orifice and form molten drop 4, reaches printing 7 position of test specimen and merged admittedly with printing test specimen 7
Change.Meanwhile inert gas from exit portion 231 spray formed protection gas curtain, prevent from nozzle 1 spray molten drop 4 with beat
It is aoxidized before printing the fusion solidification of test specimen 7；Jet pipe 51 sprays cooling gas 52, makes molten drop 4 after removing inert gas shielding area
Quickly solidification.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of melting condensation integrated 3D printing device of metal material, it is characterised in that: including nozzle, liquid metal supply
Device, oxidation, cooling device, three-dimension numerical controlled workbench and control device, interior be equipped with of nozzle are flowed through for liquid metal
Channel, for spray orifice towards three-dimension numerical controlled workbench, the piezoelectric ceramics of surrounding is located at the outlet ends of spray orifice,
Test specimen for printing is set to three-dimension numerical controlled workbench, corresponding with spray orifice,
Liquid metal feeding mechanism is connected to nozzle passage,
Oxidation around spray orifice be arranged, oxidation spray inert gas, around spray orifice and spray orifice to test specimen it
Between formed inert gas gas curtain,
Cooling device is set to the side of nozzle, and cooling device sprays cooling gas, and the injection direction of cooling gas is directed at test specimen,
It is dynamic that control device controls nozzle, liquid metal feeding mechanism, oxidation, three-dimension numerical controlled workbench and cooling device
Make.
2. a kind of melting condensation integrated 3D printing device of metal material described in accordance with the claim 1, it is characterised in that: anti-
Oxidation unit includes inert gas injection apparatus and inert gas feeding mechanism, and inert gas injection apparatus and inert gas are supplied
Device connection, inert gas injection apparatus are arranged around spray orifice.
3. the melting condensation integrated 3D printing device of a kind of metal material according to claim 2, it is characterised in that: lazy
Property gas injection apparatus includes inert gas circulation channel and the runner intensively arranged, inert gas circulation channel respectively with it is lazy
Property gas supply device be connected to the runner intensively arranged, each runner is equipped with exit portion, the alignment examination of exit portion direction
Part forms array around spray orifice.
4. a kind of melting condensation integrated 3D printing device of metal material described in accordance with the claim 3, it is characterised in that: lazy
Property gas circulating channel and runner be set in nozzle wall.
5. a kind of melting condensation integrated 3D printing device of metal material described in accordance with the claim 1, it is characterised in that: cold
But device includes jet pipe and cooling gas feeding mechanism, and jet pipe is connected to cooling gas feeding mechanism, the injection direction pair of jet pipe
Quasi- test specimen.
6. the melting condensation integrated 3D printing device of a kind of metal material according to claim 5, it is characterised in that: spray
Pipe is movably connected on nozzle wall, and the distance between jet pipe and nozzle and the distance between jet pipe and test specimen are adjustable.
7. the melting condensation integrated 3D printing device of a kind of metal material according to claim 6, it is characterised in that: spray
Mouth side wall protrudes outward to form lug, and lug is equipped with the long stripes through hole extended to nozzle side, and jet pipe is movably connected on strip
It, can distance, jet pipe be removably attachable between distance and jet pipe and test specimen between adjustable jet tube and nozzle in shape through-hole
Lug.
8. a kind of melting condensation integrated 3D printing device of metal material described in accordance with the claim 1, it is characterised in that: liquid
State metal supply device includes the internal crucible that can accommodate liquid metal, and inner surface of crucible is equipped with fireproof heat-insulating layer, and crucible is equipped with
Lid, crucible bottom are equipped with the conduit being connected to nozzle passage.
9. the melting condensation integrated 3D printing device of a kind of metal material according to claim 8, it is characterised in that: lead
Pipe is equipped with flow regulator.
10. a kind of melting condensation integrated 3D printing method of metal material, it is characterised in that: appoint using in claim 1 to 9
The method that device described in meaning one carries out 3D printing, includes the following steps, liquid metal feeding mechanism provides liquid for nozzle
Metal；Piezoelectric ceramics drives liquid metal in nozzle to spray to form molten drop from spray orifice, and three-dimension numerical controlled workbench is in computer
Movement and the frequency match with piezoelectric ceramics pulse voltage under the control of upper Special stereoscopic delamination software；Oxidation is around spray
Hole sprays inert gas, prevents molten drop oxidation before merging solidification with test specimen；Cooling device sprays the fast quickly cooling of cooling gas
But the molten drop merged with test specimen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811562650.XA CN109365819A (en) | 2018-12-20 | 2018-12-20 | A kind of melting condensation integrated 3D printing device and method of metal material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811562650.XA CN109365819A (en) | 2018-12-20 | 2018-12-20 | A kind of melting condensation integrated 3D printing device and method of metal material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109365819A true CN109365819A (en) | 2019-02-22 |
Family
ID=65371049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811562650.XA Pending CN109365819A (en) | 2018-12-20 | 2018-12-20 | A kind of melting condensation integrated 3D printing device and method of metal material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109365819A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024886A (en) * | 2020-04-13 | 2020-12-04 | 中国石油大学(华东) | Ultrahigh frequency metal 3D printing method based on ultrasonic atomization technology |
| CN112974838A (en) * | 2019-12-02 | 2021-06-18 | 施乐公司 | Three-dimensional printing method and conductive liquid three-dimensional printing system |
| CN113427017A (en) * | 2021-06-29 | 2021-09-24 | 昆山晶微新材料研究院有限公司 | Speed control method of 3D printing device and 3D printing device |
| CN115488463A (en) * | 2022-09-23 | 2022-12-20 | 蒙宝康 | Liquid metal jet welding equipment |
| CN117961098A (en) * | 2024-02-20 | 2024-05-03 | 南京农业大学 | 3D printing device based on metal liquid drop |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6149072A (en) * | 1998-04-23 | 2000-11-21 | Arizona State University | Droplet selection systems and methods for freeform fabrication of three-dimensional objects |
| CN105312573A (en) * | 2015-11-17 | 2016-02-10 | 北京科技大学 | Method and device for conducting 3D printing directly with liquid metal |
| CN106925786A (en) * | 2017-03-29 | 2017-07-07 | 西北工业大学 | Many uniform particle sizes' spherical powder batch preparation facilities and method based on the injection of homogeneous metal drop |
| CN107457529A (en) * | 2017-06-12 | 2017-12-12 | 广东工业大学 | A kind of manufacture method of cavity turbine disk |
-
2018
- 2018-12-20 CN CN201811562650.XA patent/CN109365819A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6149072A (en) * | 1998-04-23 | 2000-11-21 | Arizona State University | Droplet selection systems and methods for freeform fabrication of three-dimensional objects |
| CN105312573A (en) * | 2015-11-17 | 2016-02-10 | 北京科技大学 | Method and device for conducting 3D printing directly with liquid metal |
| CN106925786A (en) * | 2017-03-29 | 2017-07-07 | 西北工业大学 | Many uniform particle sizes' spherical powder batch preparation facilities and method based on the injection of homogeneous metal drop |
| CN107457529A (en) * | 2017-06-12 | 2017-12-12 | 广东工业大学 | A kind of manufacture method of cavity turbine disk |
Non-Patent Citations (1)
| Title |
|---|
| 冯春梅 等: "《3D打印成型工艺及技术》", 31 May 2016, 南京师范大学出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112974838A (en) * | 2019-12-02 | 2021-06-18 | 施乐公司 | Three-dimensional printing method and conductive liquid three-dimensional printing system |
| CN112024886A (en) * | 2020-04-13 | 2020-12-04 | 中国石油大学(华东) | Ultrahigh frequency metal 3D printing method based on ultrasonic atomization technology |
| CN113427017A (en) * | 2021-06-29 | 2021-09-24 | 昆山晶微新材料研究院有限公司 | Speed control method of 3D printing device and 3D printing device |
| CN115488463A (en) * | 2022-09-23 | 2022-12-20 | 蒙宝康 | Liquid metal jet welding equipment |
| CN117961098A (en) * | 2024-02-20 | 2024-05-03 | 南京农业大学 | 3D printing device based on metal liquid drop |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109365819A (en) | A kind of melting condensation integrated 3D printing device and method of metal material | |
| CN106735967B (en) | A kind of method of ultrasonic vibration assistant electric arc increasing material manufacturing control shape control | |
| US20160151833A1 (en) | Flexible 3D Freeform Techniques | |
| US6526327B2 (en) | One-step rapid manufacturing of metal and composite parts | |
| US20130287934A1 (en) | Liquid Metal Digital Manufacturing System | |
| US6472029B1 (en) | Fabrication of laminate structures using direct metal deposition | |
| CN108620585B (en) | Additive manufacturing device capable of controlling magnetic field and conveying parent metal | |
| US8062715B2 (en) | Fabrication of alloy variant structures using direct metal deposition | |
| US20170274454A1 (en) | Extruded metal flow 3d printer | |
| Fang et al. | Building three‐dimensional objects by deposition of molten metal droplets | |
| JP2021088179A (en) | Method of three-dimensional printing and conductive liquid three-dimensional printing system | |
| US20060165546A1 (en) | Method and apparatus for manufacturing three-dimensional objects | |
| JPH0791571B2 (en) | Method for producing titanium particles | |
| CN108672936B (en) | Additive manufacturing device and method based on combination of induction heating fuse and laser | |
| JP2010505041A (en) | Method for manufacturing an amorphous metal product | |
| Wang et al. | 3D printing of aluminum alloys using laser powder deposition: a review | |
| CN102240861B (en) | Method and equipment for manufacturing gradient functional structure | |
| WO2011127798A1 (en) | Fused deposition forming composite manufacturing method for part and mold and auxiliary device thereof | |
| CN109332701A (en) | A kind of manufacture of laser gain material and reparation powder-supplying spray head | |
| CN1483299A (en) | Refining and casting apparatus and method | |
| Fang et al. | An investigation on effects of process parameters in fused-coating based metal additive manufacturing | |
| CN110814350B (en) | Aluminum alloy ultrasonic-assisted 3D printing device and printing method thereof | |
| US20230226609A9 (en) | Three-dimensional printing method | |
| CN109201982B (en) | Forming device and forming method based on vacuum induction heating | |
| CN109590625A (en) | A kind of electric arc increases the composite manufacturing method of material forming and mixing yoghurt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190222 |