CN103521773A - Post-processing technology for SLS workpiece surface - Google Patents
Post-processing technology for SLS workpiece surface Download PDFInfo
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- CN103521773A CN103521773A CN201310443344.5A CN201310443344A CN103521773A CN 103521773 A CN103521773 A CN 103521773A CN 201310443344 A CN201310443344 A CN 201310443344A CN 103521773 A CN103521773 A CN 103521773A
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Abstract
The invention discloses a post-processing technology for an SLS workpiece surface. The post-processing technology comprises S1, surface abrasive blasting, wherein spraying materials of the size of 75-115 microns are adopted to carry out abrasive blasting processing on the surface of a workpiece; S2, polishing, wherein abrasive paper is used for polishing the surface of the workpiece; S3, resin blending agent spraying, wherein epoxy resin, EP curing agents and anhydrous alcohol are blended according to a ratio of 1:1:1-2, spraying is carried out on the surface of the workpiece, and the thickness of a sprayed resin layer is 50-70 microns; S4, polishing, wherein after the workpiece is dried, the surface of the workpiece is polished through the abrasive paper, and the resin layer is polished to be 35-50 microns thick; S5, polyester paint mixed liquor spraying, wherein after polyester main color paint, curing agents and diluents are blended according to a ratio of 1:0.5-1:1-1.5, spraying is carried out on the workpiece to form a finishing coat layer with a thickness of 40-60 microns. The post-processing technology is adopted to process the nylon SLS workpiece, the surface roughness, surface finish degree and coloring condition of the workpiece can be greatly improved, the strength of the surface of the workpiece is strengthened, and the workpiece is made to meet actual using needs.
Description
Technical field
The present invention relates to field of surface treatment, relate in particular to a kind of SLS product surface aftertreatment technology.
Background technology
Selective laser sintering rapid forming system---SLS (Selected Laser Sintering), is first stl file by CAD 3D model conversation, according to certain thickness, cuts into slices, and obtains the interface profile of section.Then control laser beam the powder of model solid section is scanned, make powder particle fusing and adhered to one another, progressively obtain the profile of this layer.Complete after one deck scanning, workbench decline one deck depth of section, then carry out paving powder and the sintering of lower one deck, finally form threedimensional model.
SLS product moulding rear surface hole is more, and surface roughness is approximately Ra12.5, and the roughness on product surface, fineness and colouring situation can not meet actual operation requirements.
Summary of the invention
The object of the present invention is to provide a kind of SLS product surface aftertreatment technology, solved in prior art after the moulding of SLS product, surface roughness, fineness and colouring situation do not reach the problem of instructions for use.
Technical scheme of the present invention is as follows:
A product surface aftertreatment technology, comprises the following steps:
S1, surface sand-blasting: adopt the material spray that is of a size of 75～115 μ m to carry out blasting treatment to product surface;
S2, polishing: polished in product surface with sand paper;
S3, the agent of spraying mixed with resin: after epoxy resin, EP curing agent, absolute alcohol are mixed according to the ratio of 1:1:1～2, product surface is sprayed, the resin layer thickness of spraying is 50～70 μ m.Adopt absolute alcohol as dissolution solvent herein, can spray solution to form; The resin layer thickness of spraying constrains in 50～70 μ m, can fill preferably the uneven of product top layer particle, and after filling, it is excessive that coating layer thickness is unlikely to.
S4, polishing: after product is done solid work, with its surface of sand papering, the thickness of described resin bed is polished to 35～50 μ m;
S5, spraying Polyester Paint mixed liquor: after polyester mass-tone paint, curing agent, diluent are mixed according to the ratio of 1:0.5～1:1～1.5, product is sprayed, form the top coat layer of thickness 40～60 μ m.Top coat layer under this thickness has good mobility, levelability, glossiness uniformity, and the thickness of whole product surface post processing layer is unlikely too large.
Preferably: in step S2, adopt two or more sand paper that are selected from 180～No. 360 sand paper by being polished by thick extremely thin order, until product surface is smooth to the touch.
Preferably: the spraying method in step S3 is right-angled intersection method, with after a directions X spraying, then the Y-direction perpendicular to described directions X is sprayed, then surface drying.
Preferably: in step S4, adopt 360～No. 600 sand paper to polish.
Preferably: the spraying method in step S5 is described right-angled intersection method.
Preferably: further comprising the steps of:
S6, repairing: the product of processing through step S5 is revised with wool brush or writing brush.
Preferably: further comprising the steps of:
S6, repairing: the product of processing through step S5 is polished with 800～No. 1500 sand paper, then spray the Polyester Paint mixed liquor of 1～2 time.
Preferably: in step S3 after deployed mixed with resin agent, standing 5～15 minutes, then spray, after spraying, surface drying is 10～20 minutes.
Preferably, described material spray be in bead, diamond dust, aluminum oxide sand, ceramic sand a kind of, two or more.
The average grain diameter of the nylon powder adopting due to general SLS machining is 50-70 μ m, in step S1, adopt the bead of 75～115 μ m to carry out blasting treatment, not only can spray the unnecessary powder of surface of the work, bead used can produce impact, ablation to surface of the work, causes the trickle distortion on surface, thereby eliminate the residual stress after part processing, improve the mechanical performance on product surface, improve its fatigue resistance, strengthen the adhesive force between it and coating.Surface of the work after sandblast is due to the characteristic of SLS processing mode, and surface ratio is more coarse, by step S2, uses sand paper to polish, can the larger burr for the treatment of surface, until surface of the work is smooth to the touch.Spraying in step S3, adopt epoxy resin, epoxy resin is the macromolecular compound that contains epoxide group, after solidifying, there is good physics, chemical property, to metal with nonmetally all there is excellent adhesion strength, can effectively be attached to SLS nylon products surface, fill up surface pore, strengthen case hardness, by itself and EP curing agent, absolute alcohol mixes, can realize liquid spraying, not only can fill the defect of the granular concave injustice of surface of the work, can also be as the bottom of follow-up spray paint, and the thickness spraying by constraint is controlled bottom effect: if this bottom is too thick, too large on the impact of product original size, waste coating, if too thin, be unfavorable for the protection effect of coating to product, splitting resistance, covering, persistence and mildew resistance are bad, and coating is bad at mobility and the levelability on product surface.After workpiece after mixed with resin agent to be sprayed is done solid work, in step S4, with sand paper, polish again, this time polishing not only can be removed a small amount of burr of projection after spraying resin bed, more play and guarantee that surface of the work and finish paint have the effect of good adhesion property, meanwhile, this time polishing also can be played the effect of controlling resin layer thickness.The spraying of step S5, adopts Polyester Paint as top coat layer, has Gao Guang, quick surface drying, the uniform advantage of colour mixture, on the processing basis above, reduces surface roughness again.To sum up, by technique of the present invention to the surface treatment of SLS product after, the roughness on product surface, fineness and colouring situation all improve, enable to meet actual user demand, simultaneously, double-deck surface spraying is improved product surface strength, by adjust the proportioning of spray solution in setting range, can regulate surperficial Gao Zedu and configure different spraying colors.
In addition, adopt right-angled intersection method to spray, can be issued in the prerequisite of controlling coating thickness the effect of the whole surface of the work of even spraying.For a small amount of, process remedying of not good special circumstances, the present invention also provides the follow-up repairing as described in step S6, can carry out remedying again to the flaw of the need finishing still existing after S1～S5 processes, and further improves the optimization rate on product surface.
Accompanying drawing explanation
Fig. 1 is the flow chart of SLS product of the present invention surface aftertreatment technology;
Fig. 2 is dull and stereotyped workpiece P1 and the similar face design sketch of P2 after 150 order glass sand blasting treatments;
Fig. 3 is that the dull and stereotyped workpiece P1 of embodiment 1 sprays the surface effect figure after polishing again through resin;
Fig. 4 is that the dull and stereotyped workpiece P2 of embodiment 2 sprays the surface effect figure after polishing again through resin;
Fig. 5 is the dull and stereotyped workpiece P1 of the embodiment 1 surface effect figure after Polyester Paint spraying;
Fig. 6 is the dull and stereotyped workpiece P2 of the embodiment 2 surface effect figure after Polyester Paint spraying.
The specific embodiment
Preferred embodiment the invention will be further described to contrast accompanying drawing combination below.
Below preferred embodiment in, SLS product of the present invention surface aftertreatment technology is mainly to carry out subsequent treatment for take the product that nylon is agglomerated material.Below by test, the specific embodiment is carried out to more careful explanation: in test, use colored 3D laser scanning surface microscope to show imaging test to a stage in product surface treatment process, adopt 1000 times of amplification modes.In addition, epoxy resin is as the macromolecular compound that contains epoxide group, after solidifying, there is good physics, chemical property, to metal with nonmetally there is excellent adhesion strength, can effectively be attached to SLS nylon products surface, fill up surface pore, strengthen case hardness, by adding curing agent and certain alcohol diluent, can realize the liquid state spraying requirement of epoxy resin.
Embodiment 1
Choose the dull and stereotyped workpiece P1 obtaining through SLS rapid prototyping system sintering, process as follows:
S1, sandblast: by sand-blasting machine, spray the size 150 orders glass sand of (being equivalent to 106 μ m), blasting treatment is carried out in the surface of P1, the powder of surface attachment is cleaned out, the while burr of effects on surface impacts, grinding, make it that trickle deformation occur, eliminate the residual stress after processing, obtain the workpiece that roughness is Ra11.39, its design sketch as shown in Figure 2;
S2, polishing: to the dull and stereotyped workpiece P1 after blasting treatment, first adopt No. 180 sand paper to polish, then polish with No. 360 sand paper, until the surface of dull and stereotyped workpiece P1 is smooth to the touch;
S3, the agent of spraying mixed with resin: after epoxy resin, EP curing agent, absolute alcohol are mixed according to the ratio of 1:1:1, standing 10 minutes, dull and stereotyped workpiece P1 is carried out to the spraying of right-angled intersection method, after first spraying separately along a certain directions X, again the Y-direction perpendicular to directions X is sprayed, then surface drying is 15 minutes, and the surface resin layer thickness of spraying is 60 μ m;
S4, polishing: after dull and stereotyped workpiece P1 does solid work, with No. 360 its surfaces of sand papering, the unlapped sanding burr of resin bed is smooth, and the thickness of surface resin layer is polished to 50 μ m, surface roughness is now Ra1.62, its design sketch is as shown in Figure 3;
S5, spraying Polyester Paint mixed liquor: after Polyester Paint, curing agent, diluent are mixed according to the ratio of 1:0.5:1, dull and stereotyped workpiece P1 is sprayed, form the top coat layer of thickness 40 μ m, surface roughness is Ra0.1, and its design sketch as shown in Figure 5.Polyester Paint as top coat layer has Gao Guang, quick surface drying, the uniform advantage of colour mixture.
By the processing of above-mentioned 5 steps, the surface thickness of dull and stereotyped workpiece P1 has finally increased by 95 μ m, but roughness is down to Ra0.1 by initial Ra11.39, has obtained very large improvement.
After causing if run into special circumstances in processing procedure processing, still there are some flaws, can adopt following two kinds of modes to repair: 1) with one-inch wool brush or writing brush, the product of processing through step S5 is revised; 2) product of processing through step S5 is polished with 800～No. 1500 sand paper, then spray the Polyester Paint mixed liquor of 1～2 time.
In the present embodiment, adopt the inorganic agent proportioning of preset proportion, according to technological process, dull and stereotyped workpiece P1 is processed, through surface roughness after processing, be Ra0.1, roughness and surface smoothness are improved significantly, through blasting treatment, eliminated the stress producing in part product process, double-deck surface spraying is greatly improved product surface strength simultaneously.
Embodiment 2
Choose the dull and stereotyped workpiece P2 obtaining through SLS rapid prototyping system sintering, process as follows: compare with embodiment 1, step S1 is identical with S2, and the initial roughness of P2 is also Ra11.39, and the difference of processing is:
S3, the agent of spraying mixed with resin: after epoxy resin, EP curing agent, absolute alcohol are mixed according to the ratio of 1:1:2, standing 15 minutes, dull and stereotyped workpiece P2 is carried out to the spraying of right-angled intersection method, after first spraying separately along a certain directions X, again the Y-direction perpendicular to directions X is sprayed, then surface drying is 10 minutes, and the surface resin layer thickness of spraying is 50 μ m;
S4, polishing: after dull and stereotyped workpiece P2 does solid work, with No. 360 its surfaces of sand papering, the unlapped sanding burr of resin bed is smooth, and the thickness of surface resin layer is polished to 40 μ m, surface roughness is now Ra1.48, its design sketch is as shown in Figure 4;
S5, spraying Polyester Paint mixed liquor: after Polyester Paint, curing agent, diluent are mixed according to the ratio of 1:1:1.5, dull and stereotyped workpiece P2 is sprayed, form the top coat layer of thickness 55 μ m, surface roughness is Ra0.06, and its design sketch as shown in Figure 6.Polyester Paint as top coat layer has Gao Guang, quick surface drying, the uniform advantage of colour mixture.
By the processing of above-mentioned 5 steps, the surface thickness of dull and stereotyped workpiece P2 has finally increased by 95 μ m, but roughness is down to Ra0.06 by initial Ra11.39, has obtained very large improvement.
In the present embodiment, adopt the inorganic agent proportioning with embodiment 1 different proportion, according to technological process, dull and stereotyped workpiece P2 is processed, through surface roughness after processing, be Ra0.06, roughness and surface smoothness are also improved significantly, through blasting treatment, eliminated the stress producing in part product process, double-deck surface spraying is greatly improved product surface strength simultaneously.And, by adjust the proportioning of spray solution in setting range, can regulate surperficial Gao Zedu and configure different spraying colors.
Embodiment 3
The difference part of the present embodiment and embodiment 1 is only that the material spray of sandblast in step S1 is of a size of 75 μ m, the experiment proved that, the present embodiment also can obtain the effect identical with embodiment 1 cardinal principle.
Embodiment 4
The difference part of the present embodiment and embodiment 1 is only that the material spray of sandblast in step S1 is of a size of 115 μ m, the experiment proved that, the present embodiment also can obtain the effect identical with embodiment 1 cardinal principle.
Embodiment 5
The difference of the present embodiment and embodiment 1 is only in step S4, and the thickness polishing of resin bed, to 35 μ m, be the experiment proved that, the present embodiment also can obtain the effect identical with embodiment 1 cardinal principle.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For those skilled in the art, without departing from the inventive concept of the premise, can also make some being equal to substitute or obvious modification, and performance or purposes identical, all should be considered as belonging to protection scope of the present invention.
Claims (9)
1. a SLS product surface aftertreatment technology, is characterized in that, comprises the following steps:
S1, surface sand-blasting: adopt the material spray that is of a size of 75～115 μ m to carry out blasting treatment to product surface;
S2, polishing: polished in product surface with sand paper;
S3, the agent of spraying mixed with resin: after epoxy resin, EP curing agent, absolute alcohol are mixed according to the ratio of 1:1:1～2, product surface is sprayed, the resin layer thickness of spraying is 50～70 μ m;
S4, polishing: after product is done solid work, with its surface of sand papering, the thickness of described resin bed is polished to 35～50 μ m;
S5, spraying Polyester Paint mixed liquor: after polyester mass-tone paint, curing agent, diluent are mixed according to the ratio of 1:0.5～1:1～1.5, product is sprayed, form the top coat layer of thickness 40～60 μ m.
2. SLS product as claimed in claim 1 surface aftertreatment technology, is characterized in that: in step S2, use two or more sand paper that are selected from 180～No. 360 sand paper by being polished by thick extremely thin order, until product surface is smooth to the touch.
3. SLS product as claimed in claim 1 surface aftertreatment technology, is characterized in that: the spraying method in step S3 is right-angled intersection method, with after a directions X spraying, then the Y-direction perpendicular to described directions X is sprayed, then surface drying.
4. SLS product as claimed in claim 1 surface aftertreatment technology, is characterized in that: in step S4, adopt 360～No. 600 sand paper to polish.
5. SLS product as claimed in claim 3 surface aftertreatment technology, is characterized in that: the spraying method in step S5 is right-angled intersection method.
6. the SLS product as described in claim 1 to 5 any one surface aftertreatment technology, characterized by further comprising following steps:
S6, repairing: the product of processing through step S5 is revised with wool brush or writing brush.
7. the SLS product as described in claim 1 to 5 any one surface aftertreatment technology, characterized by further comprising following steps:
S6, repairing: the product of processing through step S5 is polished with 800～No. 1500 sand paper, then spray the Polyester Paint mixed liquor of 1～2 time.
8. the SLS product as described in claim 3 or 5 surface aftertreatment technology, is characterized in that: in step S3 after deployed mixed with resin agent, and standing 5～15 minutes, then spray, after spraying, surface drying is 10～20 minutes.
9. SLS product according to claim 1 surface aftertreatment technology, is characterized in that: described material spray be in bead, diamond dust, aluminum oxide sand, ceramic sand a kind of, two or more.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226988A (en) * | 2014-08-25 | 2014-12-24 | 深圳光韵达光电科技股份有限公司 | 3D printing manufacturing method for large-size part |
| CN105033836A (en) * | 2015-07-06 | 2015-11-11 | 上海悦瑞电子科技有限公司 | Fabrication processing method based on coloring of surfaces of 3D printed products |
| CN105216328A (en) * | 2015-10-27 | 2016-01-06 | 上海航天精密机械研究所 | The surperficial finishing process method of selective laser sintering polystyrene casting mould |
| CN105797941A (en) * | 2016-05-17 | 2016-07-27 | 湖南华曙高科技有限责任公司 | After-treatment method of added material manufacturing nylon part |
| CN106378272A (en) * | 2015-10-28 | 2017-02-08 | 广州黑格智能科技有限公司 | Polishing equipment for high-molecular polymer 3D printed pieces |
| CN106739025A (en) * | 2016-11-23 | 2017-05-31 | 武汉理工大学 | The post-processing approach of 3D printing proton exchange film fuel cell electric piling inlet manifold |
| CN107627609A (en) * | 2017-09-21 | 2018-01-26 | 广州形优科技有限公司 | Process of surface treatment |
| CN109514192A (en) * | 2018-11-19 | 2019-03-26 | 贵阳华丰航空科技有限公司 | A kind of corrosion-resistant screw processing and forming technology of aircraft utilization |
| CN109986411A (en) * | 2017-12-29 | 2019-07-09 | 杭州比亚迪汽车有限公司 | SMC article surface processing method and its application |
| CN110039784A (en) * | 2019-05-07 | 2019-07-23 | 张俊强 | A kind of 3D printing workpiece post-processing approach |
| CN111300581A (en) * | 2020-02-28 | 2020-06-19 | 中山市华帝智慧家居有限公司 | Door plate and manufacturing process thereof |
| CN112064355A (en) * | 2020-09-08 | 2020-12-11 | 宁波江丰复合材料科技有限公司 | Surface treatment method for carbon fiber robot arm fork |
| CN116023694A (en) * | 2022-12-14 | 2023-04-28 | 华东理工大学 | Post-treatment enhancement method for TPU (thermoplastic polyurethane) product |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63303727A (en) * | 1987-06-04 | 1988-12-12 | Daido Kohan Kk | Resin coated steel sheet and its manufacture |
| JP2002225179A (en) * | 2001-02-01 | 2002-08-14 | Nkk Corp | Coated steel panel excellent in processability and processed part corrosion resistance and method for manufacturing the same |
| CN1850396A (en) * | 2006-04-14 | 2006-10-25 | 华中科技大学 | Method for rapidly manufacturing injection-mould insert with follow-cooling passageway |
| CN201516694U (en) * | 2009-10-29 | 2010-06-30 | 凌聿辉 | Digital control plastic thin film sedimentary casting machine |
| CN201575232U (en) * | 2009-08-10 | 2010-09-08 | 扬中市中泰电力设备有限公司 | Efficient anticorrosion cable bridge |
-
2013
- 2013-09-25 CN CN201310443344.5A patent/CN103521773B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63303727A (en) * | 1987-06-04 | 1988-12-12 | Daido Kohan Kk | Resin coated steel sheet and its manufacture |
| JP2002225179A (en) * | 2001-02-01 | 2002-08-14 | Nkk Corp | Coated steel panel excellent in processability and processed part corrosion resistance and method for manufacturing the same |
| CN1850396A (en) * | 2006-04-14 | 2006-10-25 | 华中科技大学 | Method for rapidly manufacturing injection-mould insert with follow-cooling passageway |
| CN201575232U (en) * | 2009-08-10 | 2010-09-08 | 扬中市中泰电力设备有限公司 | Efficient anticorrosion cable bridge |
| CN201516694U (en) * | 2009-10-29 | 2010-06-30 | 凌聿辉 | Digital control plastic thin film sedimentary casting machine |
Non-Patent Citations (1)
| Title |
|---|
| 张胥云: ""玻璃钢手糊异形制品表面光洁度的研究"", 《贵州化工》 * |
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| CN105033836A (en) * | 2015-07-06 | 2015-11-11 | 上海悦瑞电子科技有限公司 | Fabrication processing method based on coloring of surfaces of 3D printed products |
| CN105216328A (en) * | 2015-10-27 | 2016-01-06 | 上海航天精密机械研究所 | The surperficial finishing process method of selective laser sintering polystyrene casting mould |
| CN106378272A (en) * | 2015-10-28 | 2017-02-08 | 广州黑格智能科技有限公司 | Polishing equipment for high-molecular polymer 3D printed pieces |
| CN105797941A (en) * | 2016-05-17 | 2016-07-27 | 湖南华曙高科技有限责任公司 | After-treatment method of added material manufacturing nylon part |
| CN106739025B (en) * | 2016-11-23 | 2019-01-04 | 武汉理工大学 | The post-processing approach of 3D printing proton exchange film fuel cell electric piling inlet manifold |
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| CN107627609A (en) * | 2017-09-21 | 2018-01-26 | 广州形优科技有限公司 | Process of surface treatment |
| CN109986411A (en) * | 2017-12-29 | 2019-07-09 | 杭州比亚迪汽车有限公司 | SMC article surface processing method and its application |
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| CN109514192B (en) * | 2018-11-19 | 2020-06-23 | 贵阳华丰航空科技有限公司 | Machining and forming process for corrosion-resistant screw used for airplane |
| CN110039784A (en) * | 2019-05-07 | 2019-07-23 | 张俊强 | A kind of 3D printing workpiece post-processing approach |
| CN111300581A (en) * | 2020-02-28 | 2020-06-19 | 中山市华帝智慧家居有限公司 | Door plate and manufacturing process thereof |
| CN112064355A (en) * | 2020-09-08 | 2020-12-11 | 宁波江丰复合材料科技有限公司 | Surface treatment method for carbon fiber robot arm fork |
| CN116023694A (en) * | 2022-12-14 | 2023-04-28 | 华东理工大学 | Post-treatment enhancement method for TPU (thermoplastic polyurethane) product |
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