CN108356270A - A kind of metal 3D printing method based on contact resistance heating - Google Patents
A kind of metal 3D printing method based on contact resistance heating Download PDFInfo
- Publication number
- CN108356270A CN108356270A CN201810251916.2A CN201810251916A CN108356270A CN 108356270 A CN108356270 A CN 108356270A CN 201810251916 A CN201810251916 A CN 201810251916A CN 108356270 A CN108356270 A CN 108356270A
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- Prior art keywords
- cathode
- anode
- printing
- metal
- contact resistance
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Classifications
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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
- 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
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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
- 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
- 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
Abstract
A kind of metal 3D printing method based on contact resistance heating, is related to metal 3D printing method.The anode and cathode of power supply are connect after electrical heating cathode and anode respectively, cathode and anode use graphite material, cathode and anode holding and graphite head point contact, cathode and anode made to heat up；Metallic print material is entered into graphite head by wire feed system, before printing, the surface clamping energization cathode and anode of 3D printing workbench, electrified regulation；Filamentous metallic print material is entered in graphite head, after reaching melting printing standard, is driven and is squeezed by wire feed system, printed.Metal 3D printing device based on contact resistance is equipped with power supply, metallic print material, electrical heating anode, graphite head, 3D printing workbench, electrical heating cathode and wire feed system；Positive pole and cathode are connect with electrical heating anode and cathode, and electrical heating anode and cathode is contacted with graphite head respectively, and metallic print material enters graphite head by wire feed system, and workbench is located at below graphite head.
Description
Technical field
The present invention relates to metal 3D printing methods, more particularly, to a kind of metal 3D printing side based on contact resistance heating
Method.
Background technology
In recent years, metal 3D printing became a big hot spot, but it is with laser, electronics that metal 3D printing is most of at present
Beam etc. is heat source, and cost is high, and cost is big, and temperature is difficult to control, causes application ([1] Li Zhiyong, the poplar of metal 3D printing technique
It is refined, Wang Pengcheng, Li Qiao, imbeautiful plum metal 3D printing techniques present Research and its trend [J] New Technologies, 2017
(04):25-28.), it makes slow progress, it is difficult to universal.Therefore, people save cost, fortune to push the progress of metal 3D printing
With a lot of other heating printing types, for example, ceramic post sintering ([2] Zhu Lijuan, Tang Meng, Yu Baohai, Liu Yue, Tian Yanwen, Zhai
Yu Chun 3 School of Materials ＆ Metallurgy of Northeastern University the process study of materials chemistry system .TiC/NiCrMoAlTi metal-ceramic ags [J]
Material engineering, 2001 (06):10-12.), Resistant heating (heat treatment technics in groups of [3] Xia Jiewen Resistant heatings and is answered
With [J] chemical industry construction technologies, 1994 (3):23-25.) etc..But more or less all there are problems that, for example temperature is too
It is low, temperature be difficult to control and printout it is of poor quality etc..
Metal 3D printing method based on contact resistance is to connect special material graphite using DC current regulator power supply to add
Heat, the thinking of this patent are exactly to utilize ([4] Xu Jun, Li Kun electricity the characteristics of at point contact, will produce contact resistance between 2 conductors
The contact resistance of contact studies [J] electrical materials, 2011 (01):10-13.), resistance of this contact resistance than conductor itself
It is much bigger, apply the DC voltage of a several volts to it, tens or even hundreds of Ampere currents can be generated, contact point office can be made
Portion is rapidly reached very high temperature, and the height of temperature is can to control, and can melt the metal material of different melting points, passes through control
Heating temperature can also improve metallographic structure characteristic, and heating head mixes digital control system, into the processing of row metal 3D printing.
Currently, the metal 3D printing technique of comparative maturity, usually with laser, electron beam, plasma arc etc. for heat source, one
The traditional metal 3D printing of aspect can not adjust the temperature of heating during heating, metal can only first be melted again it is moulding, and
Metal 3D printing technique based on contact resistance can solve the problems, such as this, and possibility is provided for the metallic print of more direction.Separately
On the one hand, current metal 3D printer and its costliness, cost is too high, and based on the metal 3D printing system of contact resistance heating
It is at low cost no more than 10,000 yuan, the ordinary populace level of consumption can be met.
Invention content
The purpose of the present invention is to provide a kind of metal 3D printing methods based on contact resistance heating.
The metal 3D printing method based on contact resistance heating uses the metal 3D printing device based on contact resistance,
It the described method comprises the following steps：
1) anode and cathode of DC current regulator power supply, the cathode and anode are connect after electrical heating cathode and anode respectively
Using graphite material, cathode and anode keep with graphite head point contact, so that cathode and anode is heated up；
2) metallic print material is entered into graphite head by wire feed system, before being printed, 3D printing workbench just on
Square clamping energization cathode and anode, electrified regulation；
3) Filamentous metallic print material is entered in graphite head, after reaching melting printing standard, is driven by wire feed system
It squeezes, is printed.
In step 1), the cathode and anode keep spring or screw being used to reinforce with graphite head point contact, point contact
About 0.1 Ω of the contact resistance of generation, voltage, which only needs several volts, can generate larger power so that part generates a large amount of
Joule heat, rise to high temperature.
In step 2), the wire feed system can be used motor gear and drive wire, and be regulated and controled by electric machine controller
Wire feed rate；The electrified regulation is brought rapidly up using contact resistance principle of heating is based on.
The metal 3D printing device based on contact resistance is equipped with power supply, metallic print material, electrical heating anode, graphite
Head, 3D printing workbench, electrical heating cathode and wire feed system；The anode of the power supply is connect with electrical heating anode, and power supply is born
Pole is connect with electrical heating cathode, and electrical heating anode and electrical heating cathode are contacted with graphite head respectively, and metallic print material is by sending
Silk system enters graphite head, and the 3D printing workbench is located at below graphite head.
The present invention has the following advantages：
1) at low cost, efficient
Due to for the metals 3D printing methods such as the cost relative laser of metal 3D printing method based on contact resistance very
It is small, therefore the present invention is at low cost, the heating of heating is efficient, can reach required temperature in minutes, and subsequently beaten
Print work.
2) temperature is adjustable
The metals 3D printing method temperature such as laser, electron beam can not regulate and control, and the method based on contact resistance heating is logical
Overvoltage current control adjusts the size of temperature, and temperature is adjustable so that metal 3D printing has striden forward a step again.
3) final product quality is high
The present invention carried out under closed environment, the quality after strict guarantee metal molten printing.
Description of the drawings
Fig. 1 is the structural schematic diagram of metal 3D printing device of the embodiment of the present invention based on contact resistance.
Fig. 2 is the metal 3D printing circular aluminum finished product schematic diagram based on contact resistance of the embodiment of the present invention.
Fig. 3 is the metal 3D printing pyramid aluminium finished product schematic diagram based on contact resistance of the embodiment of the present invention.
Specific implementation mode
Following embodiment will the present invention is further illustrated in conjunction with attached drawing.
The present invention uses metal 3D printing device (as shown in Figure 1) based on contact resistance, described based on contact resistance
Metal 3D printing device is equipped with power supply 1, metallic print material 2, electrical heating anode 3, graphite head 4,3D printing workbench 5, electricity and adds
Hot cathode 6 and wire feed system 7；The anode of the power supply 1 is connect with electrical heating anode 3, cathode and the electrical heating cathode 6 of power supply 1
Connection, electrical heating anode 3 and electrical heating cathode 6 are contacted with graphite head 4 respectively, and metallic print material 2 is entered by wire feed system 7
Graphite head 4, the 3D printing workbench 5 are located at 4 lower section of graphite head.The metal 3D printing method based on contact resistance heating
It is as follows：Electrical heating cathode, anode (graphite material, with easy oxidation when other Metal Materials At High Temperatures), it is steady to connect DC voltage-stabilizing respectively
After flowing positive pole, cathode, all keeping can to ensure that cathode and anode and graphite head continue point contact with graphite head point contact
It is reinforced with spring or screw.It is point contact between graphite head and graphite anode and cathode, will produce contact resistance, this is the pass of the present invention
Where key.By existing experiment, about 0.1 Ω of contact resistance of point contact generation can be obtained, voltage only needs several volts
Generate larger power so that part generates a large amount of Joule heat, rises to high temperature.
The cathode and anode of graphite material are connected with graphite head, can be brought rapidly up in a short time, be reached required temperature, can
It, can be with melting stainless steel up to 1400 DEG C or more.Metallic print material enters graphite head by wire feed system, before being printed, 3D
The surface clamping energization cathode and anode of print job platform, electrified regulation, using based on contact resistance principle of heating, rapid liter
Temperature, then Filamentous metallic print material enter in graphite head, after reaching melting printing standard, driven and squeezed by wire feed system,
It is printed.
Feasibility Experiment result and conclusion of the present invention is given below.
In order to verify the feasibility and validity that the present invention uses method, circuit is connected by Fig. 1, by adjusting voltage electricity
The size of stream can reach the fusing point of different metal material.In experimentation, in graphite head short a few minutes, just becomes aglow, reach
To the fusing point needed for metal, and metal is melted, flowed on 3D printing workbench.With the increase of voltage and current, temperature also can
It is increasing, currently, aluminium, copper, silver point can be met.Metal 3D printing installation cost based on contact resistance is low, is easy to
It puts into production, realizes consumer level metal 3D printing, and temperature can be controlled, optimized.The embodiment of the present invention based on
The metal 3D printing circle and pyramid aluminium finished product schematic diagram of contact resistance are referring to Fig. 2 and Fig. 3.
Claims (4)
1. a kind of metal 3D printing method based on contact resistance heating, it is characterised in that use the metal 3D based on contact resistance
Printing equipment the described method comprises the following steps：
1) anode and cathode of DC current regulator power supply are connect after electrical heating cathode and anode respectively, the cathode and anode use
Graphite material, cathode and anode are kept and graphite head point contact, and cathode and anode is made to heat up；
2) metallic print material is entered into graphite head by wire feed system, before being printed, the surface of 3D printing workbench fills
Press from both sides energization cathode and anode, electrified regulation；
3) Filamentous metallic print material is entered in graphite head, after reaching melting printing standard, is driven and squeezed by wire feed system,
It is printed.
2. a kind of metal 3D printing method based on contact resistance heating as described in claim 1, it is characterised in that in step 1)
In, the cathode and anode keep reinforcing with graphite head point contact spring or screw, and the contact resistance that point contact generates is 0.1
Ω。
3. a kind of metal 3D printing method based on contact resistance heating as described in claim 1, it is characterised in that in step 2)
In, the wire feed system drives wire using motor gear, and regulates and controls wire feed rate by electric machine controller.
4. a kind of metal 3D printing method based on contact resistance heating as described in claim 1, it is characterised in that described to be based on
The metal 3D printing device of contact resistance be equipped with power supply, metallic print material, electrical heating anode, graphite head, 3D printing workbench,
Electrical heating cathode and wire feed system；The anode of the power supply is connect with electrical heating anode, and cathode and the electrical heating cathode of power supply connect
It connecing, electrical heating anode and electrical heating cathode are contacted with graphite head respectively, and metallic print material enters graphite head by wire feed system,
The 3D printing workbench is located at below graphite head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810251916.2A CN108356270B (en) | 2018-03-26 | 2018-03-26 | Metal 3D printing method based on contact resistance heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810251916.2A CN108356270B (en) | 2018-03-26 | 2018-03-26 | Metal 3D printing method based on contact resistance heating |
Publications (2)
| Publication Number | Publication Date |
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| CN108356270A true CN108356270A (en) | 2018-08-03 |
| CN108356270B CN108356270B (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810251916.2A Expired - Fee Related CN108356270B (en) | 2018-03-26 | 2018-03-26 | Metal 3D printing method based on contact resistance heating |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676137A (en) * | 2019-01-28 | 2019-04-26 | 西安增材制造国家研究院有限公司 | A kind of resistance induction composite heating metal wire material increasing material manufacturing device |
| CN110127992A (en) * | 2019-06-27 | 2019-08-16 | 厦门大学 | A kind of the glass 3D printing device and its Method of printing of fused glass pellet |
| CN113118467A (en) * | 2021-04-16 | 2021-07-16 | 青岛科技大学 | Printing device and printing method |
| US11260590B1 (en) | 2020-12-30 | 2022-03-01 | Kilncore Inc. | Flow control of molten material and gas extraction via electrolysis |
| US11633916B2 (en) | 2019-12-12 | 2023-04-25 | Kilncore Inc. | Very high temperature hot end for fused deposition modeling printer |
Citations (5)
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|---|---|---|---|---|
| CN2203009Y (en) * | 1994-12-08 | 1995-07-05 | 中国科学院物理研究所 | Graphite heater |
| CN103878370A (en) * | 2014-04-09 | 2014-06-25 | 王利民 | Metal 3D printer production equipment |
| US20140265037A1 (en) * | 2013-03-15 | 2014-09-18 | ProtoParadigm LLC | Inductively Heated Extruder Heater |
| CN104338933A (en) * | 2014-09-29 | 2015-02-11 | 中国科学院重庆绿色智能技术研究院 | 3D (3-dimensional) print head for metal melt extrusion molding |
| CN105499572A (en) * | 2016-01-05 | 2016-04-20 | 哈尔滨工程大学 | Extrusion spraying head of electromagnetic induction heating type 3D printer |
-
2018
- 2018-03-26 CN CN201810251916.2A patent/CN108356270B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2203009Y (en) * | 1994-12-08 | 1995-07-05 | 中国科学院物理研究所 | Graphite heater |
| US20140265037A1 (en) * | 2013-03-15 | 2014-09-18 | ProtoParadigm LLC | Inductively Heated Extruder Heater |
| CN103878370A (en) * | 2014-04-09 | 2014-06-25 | 王利民 | Metal 3D printer production equipment |
| CN104338933A (en) * | 2014-09-29 | 2015-02-11 | 中国科学院重庆绿色智能技术研究院 | 3D (3-dimensional) print head for metal melt extrusion molding |
| CN105499572A (en) * | 2016-01-05 | 2016-04-20 | 哈尔滨工程大学 | Extrusion spraying head of electromagnetic induction heating type 3D printer |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676137A (en) * | 2019-01-28 | 2019-04-26 | 西安增材制造国家研究院有限公司 | A kind of resistance induction composite heating metal wire material increasing material manufacturing device |
| WO2020155540A1 (en) * | 2019-01-28 | 2020-08-06 | 西安增材制造国家研究院有限公司 | Additive manufacturing device using combined resistance-induction heating of metal wire material |
| CN110127992A (en) * | 2019-06-27 | 2019-08-16 | 厦门大学 | A kind of the glass 3D printing device and its Method of printing of fused glass pellet |
| US11633916B2 (en) | 2019-12-12 | 2023-04-25 | Kilncore Inc. | Very high temperature hot end for fused deposition modeling printer |
| US11260590B1 (en) | 2020-12-30 | 2022-03-01 | Kilncore Inc. | Flow control of molten material and gas extraction via electrolysis |
| CN113118467A (en) * | 2021-04-16 | 2021-07-16 | 青岛科技大学 | Printing device and printing method |
| CN113118467B (en) * | 2021-04-16 | 2022-08-05 | 青岛科技大学 | Printing device and printing method |
| WO2022217680A1 (en) * | 2021-04-16 | 2022-10-20 | 青岛科技大学 | Printing apparatus and printing method |
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| Publication number | Publication date |
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| CN108356270B (en) | 2020-06-09 |
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