CN107584116A - Electric resistance welding formula metal three-dimensional printer and its application method - Google Patents
Electric resistance welding formula metal three-dimensional printer and its application method Download PDFInfo
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- CN107584116A CN107584116A CN201710679638.6A CN201710679638A CN107584116A CN 107584116 A CN107584116 A CN 107584116A CN 201710679638 A CN201710679638 A CN 201710679638A CN 107584116 A CN107584116 A CN 107584116A
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- electrode
- powder
- electric resistance
- resistance welding
- dimensional printer
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 31
- 239000002184 metal Substances 0.000 title claims abstract description 31
- 238000003466 welding Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims description 14
- 239000000843 powder Substances 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000004020 conductor Substances 0.000 claims abstract description 10
- 238000007639 printing Methods 0.000 claims abstract description 9
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 8
- 239000010937 tungsten Substances 0.000 claims abstract description 8
- 239000000853 adhesive Substances 0.000 claims abstract description 3
- 230000001070 adhesive effect Effects 0.000 claims abstract description 3
- 238000000227 grinding Methods 0.000 claims description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000011819 refractory material Substances 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000000110 selective laser sintering Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Landscapes
- Laser Beam Processing (AREA)
- Powder Metallurgy (AREA)
Abstract
Electric resistance welding formula metal three-dimensional printer, including：Three-dimensional moving device (1), tungsten electrode (2), electrode cable (3) and metal base plate (6), backplane conductors (7), in addition to Powder spreader (4).The principal character of the present invention includes：Solidify conductive powder with the mode of electric resistance welding；Powder be uniformly layered on metal base plate or above one layer printing surface on；Electrode plate must be conductive, hard, and electrode must be sharp, and its material must be wear-resisting；Use the mode traveling electrode of 3DP movement adhesive shower nozzles.Beneficial effects of the present invention are：A kind of cheap metal three-dimensional printer is obtained, it can print hanging, high inclination-angle model, can also once print different materials.
Description
Technical field
The present invention is mainly used in 3 D-printing field.
Background technology
SLS（Selective laser sintering）Precinct laser sintering technology：SLS precinct laser sintering technologies are
By spreading one layer of dusty material on the table in advance（Metal dust or non-metal powder）, laser is then allowed in computer control
Solid section powder is sintered according to interface profile information under system, then constantly circulation, layer upon layer shaping.Party's legal system
It is simple to make technique, material selection range is wide, and shaping speed is fast, is mainly used in foundry industry and directly makes fast mould.
The laser cost that SLS three-dimensional printers use is higher, and laser life-span is limited needs to regularly replace.
Electric resistance welding（Resistance welding）Pressure is applied by electrode after exactly workpiece is combined, led to using electric current
Cross joint contact surface and adjacent domain caused by the method welded of resistance heat.Electric resistance welding flows through workpiece contact using electric current
Resistance fuel factor caused by face and adjacent domain is heated to fusing or mecystasis, is allowed to be formed one kind side of metal combination
Method.
Before the present invention, electric resistance welding is not yet used during 3 D-printing.
Metal 3D printer based on arc welding：The principle welded using electric arc, printhead is moved in three dimensions so that
Welding wire on plumb joint can successively weld according to the 3D settings programmed, and then form a complete 3D solid bodies shape production
Product.
Metal 3D printer based on arc welding（Patent No. CN201420250363.6）And FDM（Fused
Deposition Modeling fused glass pellets）Similar, the technology is difficult to print high inclination-angle or center of gravity support on the upper side
The small model in face, such as mushroom model.Printing is more difficult to be lifted, or hanging model.This technology is also difficult to once print
Various metals.
The content of the invention
The present invention provides a kind of cheap metal three-dimensional printer.The three-dimensional printer can print it is hanging, incline greatly
The model at angle.The present invention can also once print a variety of metals（Or other conductive materials）.
During present invention work, the uniformly paving layer of metal powder of one layer of printing first in metal base plate or above
（Or the powder of other conductive materials）.Metal dust has three effects：1 forms the material of printer model.2 powder play support
Effect, so as to realize printing of the hanging, high inclination-angle in model.Powder connection metal base plate and the superiors beyond 3 the superiors
Powder, there is provided electric current.
Can be as needed, in diverse location, spread the powder of different materials；So as to realize the once printing of multiple material.But
It is that powder wants uniform and highly consistent on the whole.
After the completion of powdering work, you can with the mode curing powder of electric resistance welding.The present invention uses needle electrode, distal tip
It is sharp, ensure in whole power circuit, the local cross-sectional area minimum of eletrode tip and powder contact, resistance are maximum.Electrode material
Expect high temperature resistant, ensure that electrode is non-fusible not to soften when powder melts.Using hard wear resistant electrode, slow down electrode in powder
Abrasion when being moved in end.
Electrode is moved to powder surface.Now it is powered to electrode and metal base plate.Because electrode and the contact of powder surface
Ground resistance per square it is maximum, so many heats can be produced.Powder is melted and sticked together by heat, at the same also with following one layer
It has been welded on together.Resistance elsewhere is smaller, although there is same current strength, caused heat is simultaneously few.
Because welding process does not need expensive laser, such equipment holistic cost is just than relatively low.
According to drawing, traveling electrode, just at the track of electrode movement, reality weld together and firm is formd
Metal.In the unwanted place of drawing, a traveling electrode, no power.
One layer has been printed, has lifted electrode, and has repeated the work of powdering and electric resistance welding, has just realized metal 3 D-printing.
First layer powder is thicker, and the object for ensureing to be printed will not be welded on bottom plate.
Baseboard material must be conductive material, convey electrical current to the powder having been cured or without solidification；Bottom plate must
Must be hard, certain printed weight can be born；The necessary surface of bottom plate is smooth, it is not easy to clings the object printed；Bottom plate must also
Must be that refractory metal is made, when powder melts, bottom plate can not melt or soften.
Electric resistance welding knot both includes spot welding, includes seam weld again.Spot welding is that the mode of pulse works, and seam weld is continuously to work.
For the present invention as seam weld, most cases bottom electrode is all continuously to be powered.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.In figure, 1, three-dimensional moving device；2nd, tungsten electrode；3rd, tungsten electrode wire；4th, spread
Powder device；5th, metal dust（Including having been cured and not having solidification）；6th, bottom plate；7th, backplane conductors.
Specific implementation
Present invention is described below in conjunction with the accompanying drawings, it is clear that, described by accompanying drawing be only the present invention a part and
It is not all of embodiment.
As shown in figure 1, the present invention includes three-dimensional moving device（1）, tungsten electrode thereon（2）, electrode cable（3）With
Metal base plate（6）, backplane conductors（7）, present invention additionally comprises a Powder spreader（4）.
Three-dimensional locomotive function, directly it can be realized using the three-dimensional movable part of traditional FDM printers.Powdering function is straight
Connect and realized using SLS Powder spreader.
Print platform is used as using metal base plate, in that context it may be convenient to is powered to powder.
Ensured using tungsten-copper alloy electrode, electrode is non-fusible when melting powder.Tungsten electrode tip is less than 0.1 millimeter, improves
Its resistance value, ensure 40A electric current can fusing iron powder.Power supply uses 3V40A Switching Power Supply, it is not necessary to special using electric resistance welding
Use equipment.
The loop of electric current is：Positive source, tungsten electrode wire, tungsten electrode, conductive powder, metal base plate, backplane conductors electricity
Source negative pole.In terms of the fuel factor of electric current, both positive and negative polarity can overturn；But general powder leads to negative pole, reduces oxidation.
Electrode moves consistent with the mode of 3DP movement adhesive shower nozzles：Electrode is on the border along model in section
Profile moves, and according to setting, is filled in the region that profile surrounds.Support need not be printed.
Print in welding process, in general, it is not necessary to protective gas.Also without welding rod welding wire, relatively convenient is used.
Application claims printed material must be conductive, so major print conductor material powder, is in general exactly metal
Powder；Conductor material and the powder of insulating material mixing can also be printed；But it can not individually print insulating material powder.
When equipment works, electric arc is not produced, also without ultraviolet；Electric resistance welding, using the fuel factor of electric current, have infrared ray
Or red visible ray, it is substantially harmless to human body.
Claims (9)
1. electric resistance welding formula metal three-dimensional printer, including three-dimensional moving device, tungsten electrode, electrode cable and metal base plate, bottom
Plate wire, in addition to Powder spreader, its application method are characterised by, solidify conductive powder with the mode of electric resistance welding.
2. electric resistance welding formula metal three-dimensional printer and its application method according to claim 1, it is characterised in that in gold
Belong to bottom plate or above one layer of powder of uniformly paving of one layer of printing.
3. the powdering method according to claim 2, it is characterised in that first layer powder is thicker.
4. the powdering method according to claim 2, it is characterised in that same layer can include the powder of multiple material.
5. electric resistance welding formula metal three-dimensional printer and its application method according to claim 1, it is characterised in that use
Conductor material does bottom plate.
6. electric resistance welding formula metal three-dimensional printer and its application method according to claim 1, it is characterised in that electrode
End is sharp.
7. the electrode according to claim 6, it is characterised in that do electrode using refractory material.
8. the electrode according to claim 6, it is characterised in that do electrode using hard wear resistant material.
9. electric resistance welding formula metal three-dimensional printer and its application method according to claim 1, it is characterised in that use
3DP moves the mode traveling electrode of adhesive shower nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710679638.6A CN107584116A (en) | 2017-08-10 | 2017-08-10 | Electric resistance welding formula metal three-dimensional printer and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710679638.6A CN107584116A (en) | 2017-08-10 | 2017-08-10 | Electric resistance welding formula metal three-dimensional printer and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107584116A true CN107584116A (en) | 2018-01-16 |
Family
ID=61042344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710679638.6A Withdrawn CN107584116A (en) | 2017-08-10 | 2017-08-10 | Electric resistance welding formula metal three-dimensional printer and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107584116A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108971490A (en) * | 2018-08-13 | 2018-12-11 | 常兆芹 | Second generation electric resistance welding formula three-dimensional printer and its application method |
| CN111151755A (en) * | 2020-01-20 | 2020-05-15 | 南昌大学 | Rapid forming device and method for metal-based ceramic composite part based on resistance seam welding |
| CN112264620A (en) * | 2020-11-07 | 2021-01-26 | 齐齐哈尔金车工业有限责任公司 | Simple 3D printing system with selective resistance heating |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1123011A (en) * | 1993-05-12 | 1996-05-22 | 拉尔夫·拉尔森 | Method and apparatus for producing three-dimensional objects |
| CN101147971A (en) * | 2007-11-02 | 2008-03-26 | 深圳大学 | A Rapid Prototyping Method of Selective Solder Mask Melting Powder |
| CN204470602U (en) * | 2015-03-09 | 2015-07-15 | 周红 | A kind of 3D printing device |
| CN105127415A (en) * | 2015-10-19 | 2015-12-09 | 北京化工大学 | Metal 3D printing and fast prototyping device |
| CN105344999A (en) * | 2015-11-15 | 2016-02-24 | 北京工业大学 | Integrated capacitive sensing SLM powder laying scraper |
| WO2017073947A1 (en) * | 2015-10-26 | 2017-05-04 | 비즈 주식회사 | Ded arc three-dimensional alloy metal powder printing method and apparatus using arc and alloy metal powder core wire |
-
2017
- 2017-08-10 CN CN201710679638.6A patent/CN107584116A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1123011A (en) * | 1993-05-12 | 1996-05-22 | 拉尔夫·拉尔森 | Method and apparatus for producing three-dimensional objects |
| CN101147971A (en) * | 2007-11-02 | 2008-03-26 | 深圳大学 | A Rapid Prototyping Method of Selective Solder Mask Melting Powder |
| CN204470602U (en) * | 2015-03-09 | 2015-07-15 | 周红 | A kind of 3D printing device |
| CN105127415A (en) * | 2015-10-19 | 2015-12-09 | 北京化工大学 | Metal 3D printing and fast prototyping device |
| WO2017073947A1 (en) * | 2015-10-26 | 2017-05-04 | 비즈 주식회사 | Ded arc three-dimensional alloy metal powder printing method and apparatus using arc and alloy metal powder core wire |
| CN105344999A (en) * | 2015-11-15 | 2016-02-24 | 北京工业大学 | Integrated capacitive sensing SLM powder laying scraper |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108971490A (en) * | 2018-08-13 | 2018-12-11 | 常兆芹 | Second generation electric resistance welding formula three-dimensional printer and its application method |
| CN111151755A (en) * | 2020-01-20 | 2020-05-15 | 南昌大学 | Rapid forming device and method for metal-based ceramic composite part based on resistance seam welding |
| CN112264620A (en) * | 2020-11-07 | 2021-01-26 | 齐齐哈尔金车工业有限责任公司 | Simple 3D printing system with selective resistance heating |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180116 |
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| WW01 | Invention patent application withdrawn after publication |