CN205660160U - Two district's metal melting sinter molding 3D printing device of dual laser ware - Google Patents
Two district's metal melting sinter molding 3D printing device of dual laser ware Download PDFInfo
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- CN205660160U CN205660160U CN201620520198.0U CN201620520198U CN205660160U CN 205660160 U CN205660160 U CN 205660160U CN 201620520198 U CN201620520198 U CN 201620520198U CN 205660160 U CN205660160 U CN 205660160U
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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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Abstract
The utility model provides a two district's metal melting sinter molding 3D printing device of dual laser ware, scrape the scraper that send powder in indoor being used for of sealing moulding to printing the district that takes shape including setting up, correspond the air exhaust box who prints the district that takes shape and set up, the both sides limit on sealing moulding room upper portion is provided with air inlet and gas vent respectively, up end corresponding printing in sealing moulding room takes shape to distinguish to inlay and has an optical lens and the 2nd optical lens, the top of sealing moulding room corresponds an optical lens and is provided with the first scanning element that is used for scanning the work piece of will printing, it is provided with the second scanning element that is used for scanning support piece to correspond the 2nd optical lens, correspond the first jar that gathers materials that the feed district was provided with feeding mechanism and collected the clout below the sealing moulding room, it is provided with the second of printing forming means and the collecting surplus material jar that gathers materials correspond to print to take shape the district. The utility model discloses can generate the uneven combined material of density, can solve inside support of metal parts and design hard, get rid of a difficult worldwide difficult problem.
Description
Technical field
This utility model relates to a kind of 3D printing device.Particularly relate to a kind of twin-laser two-region metal melting sinter into
Type 3D printing equipment.
Background technology
3D prints (3D Printing) the i.e. one of rapid shaping technique, and it is a kind of based on mathematical model file,
Use powdery metal or plastics etc. can jointing material, by the way of successively printing, carry out the technology of constructed object.For metal
For material rapid shaping, 3D printing technique is broadly divided into two classes: a class is to utilize high energy laser beam directly by metal molten, so
Rear cooled and solidified molding, is referred to as being completely melt rapid shaping technique, such as: SLM；Another kind of be utilize low energy laser bundle by metal with
Plastics or can low melting material fusing in adhesives, then utilize low melting material bonded metal powder compacting, be referred to as the most not
It is completely melt rapid shaping technique, such as: SLS.
Selective laser melting (Selective Laser Melting, SLM) is the rapid shaping technique of metal dust,
Can go out close to complete fully dense metal parts by straight forming with it, dimensional accuracy reaches 20-50 micron, and surface roughness reaches 20-
30 microns, basically reach the foundry goods even performance of forging, be the rapid shaping technique of a kind of great development prospect, and it should
The fields such as Aero-Space, medical treatment, automobile, mould it have been extended to by scope.
Selective laser sintering (Selective Laser Sintering, SLS) be spread the most on the table one layer non-
Metal powder material, solid section powder under the control of the computer, according to interface profile information, is sintered, then by laser
Constantly circulation, piles up molding layer by layer.Such forming method has that manufacturing process is simple, degree of flexibility is high, material selection range is wide, material
The features such as material low price, stock utilization are high, shaping speed is fast.
Under current mainstream technology, metal parts rapid shaping the most still concentrates on selective laser melting.But,
During selective laser melting prepares metal parts, components interior certainly will be caused owing to quickly heating during metal forming and cooling down
Containing bigger residual stress, the problem such as alice, curling often easily occurs when molding.Solve problems at present main still
Support by adding to parts, then problem is come, and supports which kind of is selected for complicated member supporting especially components interior
Material, supports and how to add, after interpolation how the problem like this such as removal as can not be perfect solved, metal 3D printing technique
Development is by by serious restriction.
Summary of the invention
Technical problem to be solved in the utility model is to provide and a kind of solves the double of metal parts inner support problem
Laser instrument two-region metal melting sinter molding 3D printing equipment.
This utility model be the technical scheme is that a kind of twin-laser two-region metal melting sinter molding 3D prints dress
Put, including having the sealing moulding room in feed zone and printing-forming district, be arranged on sealing moulding indoor for printing-forming
The scraper of district's scraping delivery powder, the box of bleeding that corresponding printing-forming district is arranged, the dual-side on top, described sealing moulding room sets respectively
Being equipped with air inlet and air vent, described correspondence printing-forming district, upper surface, sealing moulding room is inlaid with the first optical lens and
Two optical lenses, first optical lens described in the correspondence of top of described sealing moulding room is provided with for scanning wanted marker
First scanning element of part, corresponding described second optical lens is provided with the second scanning element for scanning support member, described
Below sealing moulding room, corresponding feed zone is provided with feeding machanism and collects the first of clout and gather materials cylinder, and corresponding printing-forming district sets
It is equipped with printing-forming mechanism and collects the second of surplus material and gather materials cylinder.
The first described scanning element includes optical fiber laser, the first type variable expansion being successively set in same light path
Bundle collimating mirror and the first scanning galvanometer, wherein, first optical lens described in output light path correspondence of the first described scanning galvanometer
Mirror.
The second described scanning element includes the CO being successively set in same light path2Laser instrument, the second type variable expand
Bundle collimating mirror and the second scanning galvanometer, wherein, second optical lens described in output light path correspondence of described second scanning galvanometer.
Described printing-forming mechanism includes moulding cylinder, and being provided with in described moulding cylinder under the driving of guide rod can edge
The forming platform that the inwall of moulding cylinder moves up and down, the upper surface of described forming platform is provided with and prints for carrying
Part and the substrate of support member, be provided with in described forming platform for substrate is preheated resistance wire.
Twin-laser two-region of the present utility model metal melting sinter molding 3D printing equipment, constitutes height with optical fiber laser
Temperature sintering system, metal powder is melted and sinters and high molecular polymer pruinescence high-temperature gasification, the metal parts that sinterable one-tenth is fine and close
Entity district；Use CO2Laser instrument constitutes time high temperature sintering system, can be as bonding agent and metal powder after the fusing of high molecular polymer powder
It is bonded to un-densified metal Support.Metal parts can remove metal by high temperature degreasing process after having sintered easily
Components interior support section, solves the global problem going to support inside metal parts.This utility model can generate density not
Equal composite, it is possible to resolve the design of metal parts inner support is difficult, remove difficult global problem.
Accompanying drawing explanation
Fig. 1 is the overall structure signal of this utility model twin-laser two-region metal melting sinter molding 3D printing equipment
Figure；
Fig. 2 is the top view of Fig. 1.
In figure
1: optical fiber laser 211: the first type variable beam-expanding collimation mirror
212: the first scanning galvanometer 213: the first optical lenses
221: the second type variable beam-expanding collimation mirror 222: the second scanning galvanometers
222: the second optical lens 3:CO2 laser instrument
4: sealing moulding room 5: air vent
6: scraper 7: powder
Gather materials cylinder 9 at 8: the first: platform
10: material cylinder 11: push rod
12: moulding cylinder 13: resistance wire
14: substrate 15: support member
16: parts 17: box of bleeding
18: air inlet 19: the second gathers materials cylinder
20: forming platform 21: guide rod
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, twin-laser two-region of the present utility model metal melting sinter molding 3D is printed
Device is described in detail.
As shown in Figure 1 and Figure 2, twin-laser two-region of the present utility model metal melting sinter molding 3D printing equipment, including
There is the sealing moulding room 4 in feed zone and printing-forming district, be arranged in sealing moulding room 4 for the scraping delivery of printing-forming district
The scraper 6 of powder 7, the box 17 of bleeding that corresponding printing-forming district is arranged, the dual-side on top, described sealing moulding room 4 is respectively provided with
Air inlet 18 and air vent 5, described correspondence printing-forming district, upper surface, sealing moulding room 4 is had to be inlaid with the first optical lens
213 and second optical lens 222, first optical lens 213 described in the correspondence of top of described sealing moulding room 4 be provided with for
Scanning the first scanning element of workpiece to be printed, corresponding described second optical lens 222 is provided with for scanning support member
Second scanning element, the most corresponding feed zone, described sealing moulding room 4 is provided with feeding machanism and gathers materials with collect clout first
Cylinder 8, corresponding printing-forming district is provided with printing-forming mechanism and collects the second of surplus material and gather materials cylinder 19.
The first described scanning element includes optical fiber laser the 1, first type variable being successively set in same light path
Beam-expanding collimation mirror 211 and the first scanning galvanometer 212, wherein, described in the output light path correspondence of the first described scanning galvanometer 212
First optical lens 213, described optical fiber laser 1 connects central control machine, and optical fiber laser 1 can use the light of more than 200W
Fibre laser.
The second described scanning element includes the CO being successively set in same light path2Laser instrument the 3, second type variable expands
Bundle collimating mirror 221 and the second scanning galvanometer 222, wherein, described in output light path correspondence the second of described second scanning galvanometer 222
Optical lens 222, described CO2Laser instrument 3 connects central control machine, CO2Laser instrument 3 can use the CO of more than 50W2Laser instrument.
Described feeding machanism includes the material cylinder 10 equipped with powder 7, is arranged on described material cylinder 10 interior for supporting powder 7
Platform 9, and be connected to the bottom of described platform 9 for driving platform 9 to promote powder 7 under the driving of outside drive mechanism
The push rod 11 moved up.
Described printing-forming mechanism includes moulding cylinder 12, is provided with under the driving of guide rod 21 in described moulding cylinder 12
The forming platform 20 that can move up and down along the inwall of moulding cylinder 12, the upper surface of described forming platform 20 is provided with for
Carry the parts 16 and the substrate 14 of support member 15 printed, be provided with in described forming platform 20 for substrate 14 is carried out pre-
The resistance wire 13 of heat.
In the metal melting sinter molding 3D printing equipment of a kind of twin-laser two-region of the present utility model, described powder layer
The mixed powder that constitutes of high molecular polymer powder that being is 95 by mass fraction～the metal powder of 97% and mass fraction are 3～5%,
Described high molecular polymer powder has adhesion properties in the molten state.Described high molecular polymer powder is epoxy resin powder
E12, or nylon powder PA, or photosensitive resin powder PMMA, or Merlon powder PC.Described metal powder is 316L rustless steel
Powder, or AlSi12 powder, or Ti6Al4V powder.
Parts threedimensional model is made up of component entity part and support section, by supporting and slice tool (Magics&
AutoFab) entity part and the support section of threedimensional model being cut into slices and are respectively provided with corresponding technological parameter, central authorities control
Machine automatic identification component entity part and support section also control the optical fiber laser 1 of more than 200W and scan sintered component entity
District, the CO of more than 50W2Laser instrument 3 scans sintered component Support.
Method of printing for twin-laser two-region metal melting sinter molding 3D printing equipment of the present utility model, including
Following steps:
1) twin-laser two-region metal melting sinter molding 3D printing equipment is started, including opening box 17 of bleeding, to central authorities
The threedimensional model of control machine the wanted print member of importing, and it is laid in the position of setting, the threedimensional model bag of described parts
Include part model and support member model；
2) open air inlet 18 and air vent 5 is passed through circulation inert protective gas nitrogen/argon gas, by scraper 6 to shaping
Spreading ground floor powder layer on the substrate 14 in district, the thickness of spread powder layer is 0.05～0.15mm, by resistance wire 13 be and
Powder layer carries out being preheated to 50～200 DEG C；
Described powder layer is is 95 by mass fraction～the metal powder of 97% and macromolecule that mass fraction is 3～5%
The mixed powder that polymer powder is constituted, described metal powder is 316L stainless steel powder, or AlSi12 powder, or Ti6Al4V powder, institute
The high molecular polymer powder stated is epoxy resin powder E12, or nylon powder PA, or photosensitive resin powder PMMA, or poly-carbonic acid
Ester powder PC, described high molecular polymer powder has adhesion properties in the molten state；
3) central control machine controls CO2Laser instrument the 3, second type variable beam-expanding collimation mirror the 221, second scanning galvanometer 222 and
Part Support in second optical lens 223 this layer of powder layer to being spread is scanned sintering, controls CO2Laser instrument 3
Power 5～40W, controls the scanning speed 300～7000mm/s of the second scanning galvanometer 222, sweep span 0.05～0.3mm, sweeps
Retouching live width 0.05-0.3mm, also and metal powder is by intermolecular to make high molecular polymer powder in this layer of powder layer be molten into binding agent
Adhesion is bonding, generates un-densified property metal Support, wherein, described high molecular polymer powder fusion temperature T=50～
300℃；
4) central control machine controls optical fiber laser the 1, first type variable beam-expanding collimation mirror the 211, first scanning galvanometer 212 and
Material object parts domain scanning sintering in first optical lens 213 this layer of powder layer to being spread, controls the power of optical fiber laser 1
60～400W, control the scanning speed 300～7000mm/s of the first scanning galvanometer 212, sweep span is 0.05～0.3mm, sweeps
Retouching live width 0.05-0.3mm, make high molecular polymer powder high-temperature gasification in this layer of powder layer, metal powder molten sintering generates metal
Entity district；
5), after described powder layer having been scanned, make forming platform 20 decline 0.02～0.15mm height, make to put down simultaneously
Platform 9 rises 0.02～0.15mm height；
6) by scraper 6 to formation zone substrate on repave last layer powder layer；
7) repeat step 3), step 4), step 5) and step 6) until completing the scanning of whole part；
8) forming part is put into and vacuum sintering furnace uses high temperature degreasing method remove the support member in metal parts, institute
Temperature T that the high temperature degreasing method stated is used < 850 DEG C.
By above-mentioned steps, the different metal parts entity district of consistency and Support can be generated, for preparing composite
Provide technical support, support additionally, utilize high temperature ungrease treatment method can simply remove metal, solve inside metal parts
Supported design is difficult, remove difficult global problem.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Within the spirit of utility model and principle, any modification, equivalent substitution and improvement etc. made, should be included in the invention of this reality
Within protection domain.
Claims (4)
1. a twin-laser two-region metal melting sinter molding 3D printing equipment, including having feed zone and printing-forming district
Sealing moulding room (4), be arranged in sealing moulding room (4) is used for the scraper (6) to printing-forming district scraping delivery powder (7), right
The box of bleeding (17) that printing-forming district is arranged, the dual-side on described sealing moulding room (4) top is answered to be respectively arranged with air inlet
(18) and air vent (5), it is characterised in that described correspondence printing-forming district, sealing moulding room (4) upper surface is inlaid with first
Optical lens (213) and the second optical lens (223), first optical lens described in the correspondence of top of described sealing moulding room (4)
Mirror (213) is provided with the first scanning element for scanning workpiece to be printed, and corresponding described second optical lens (223) is arranged
Having the second scanning element for scanning support member, described sealing moulding room (4) corresponding feed zone below is provided with feeding machanism
Gathering materials cylinder (8) with collect clout first, corresponding printing-forming district is provided with printing-forming mechanism and collects the second collection of surplus material
Material cylinder (19).
Twin-laser two-region the most according to claim 1 metal melting sinter molding 3D printing equipment, it is characterised in that institute
The first scanning element stated includes optical fiber laser (1), the first type variable beam-expanding collimation being successively set in same light path
Mirror (211) and the first scanning galvanometer (212), wherein, described in the output light path correspondence of described the first scanning galvanometer (212)
One optical lens (213).
Twin-laser two-region the most according to claim 1 metal melting sinter molding 3D printing equipment, it is characterised in that institute
The second scanning element stated includes the CO being successively set in same light path2Laser instrument (3), the second type variable beam-expanding collimation mirror
(221) and the second scanning galvanometer (222), wherein, second light described in output light path correspondence of described second scanning galvanometer (222)
Learn lens (223).
Twin-laser two-region the most according to claim 1 metal melting sinter molding 3D printing equipment, it is characterised in that institute
The printing-forming mechanism stated includes moulding cylinder (12), and being provided with in described moulding cylinder (12) can under the driving of guide rod (21)
The forming platform (20) moved up and down along the inwall of moulding cylinder (12), the upper surface of described forming platform (20) is provided with use
In carrying the part (16) and the substrate (14) of support member (15) printed, described forming platform is provided with for base in (20)
Plate (14) carries out the resistance wire (13) preheated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620520198.0U CN205660160U (en) | 2016-05-31 | 2016-05-31 | Two district's metal melting sinter molding 3D printing device of dual laser ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620520198.0U CN205660160U (en) | 2016-05-31 | 2016-05-31 | Two district's metal melting sinter molding 3D printing device of dual laser ware |
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| Publication Number | Publication Date |
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| CN205660160U true CN205660160U (en) | 2016-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620520198.0U Expired - Fee Related CN205660160U (en) | 2016-05-31 | 2016-05-31 | Two district's metal melting sinter molding 3D printing device of dual laser ware |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855546A (en) * | 2016-05-31 | 2016-08-17 | 天津市天大银泰科技有限公司 | Double laser two-zone metal melting and sintering moulding 3D printing device and printing method |
| CN108481733A (en) * | 2018-04-25 | 2018-09-04 | 深圳市纵维立方科技有限公司 | A kind of the 3D printing device and 3D printing forming method of in-situ sintering |
-
2016
- 2016-05-31 CN CN201620520198.0U patent/CN205660160U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855546A (en) * | 2016-05-31 | 2016-08-17 | 天津市天大银泰科技有限公司 | Double laser two-zone metal melting and sintering moulding 3D printing device and printing method |
| CN105855546B (en) * | 2016-05-31 | 2018-11-30 | 天津市天大银泰科技有限公司 | Twin-laser two-region metal melting sinter molding 3D printing device and Method of printing |
| CN108481733A (en) * | 2018-04-25 | 2018-09-04 | 深圳市纵维立方科技有限公司 | A kind of the 3D printing device and 3D printing forming method of in-situ sintering |
| CN108481733B (en) * | 2018-04-25 | 2023-07-25 | 深圳市纵维立方科技有限公司 | In-situ sintering 3D printing device and 3D printing forming method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161026 |