CN106584869A - Method for manufacturing three-dimensional resin solid - Google Patents
Method for manufacturing three-dimensional resin solid Download PDFInfo
- Publication number
- CN106584869A CN106584869A CN201611259299.8A CN201611259299A CN106584869A CN 106584869 A CN106584869 A CN 106584869A CN 201611259299 A CN201611259299 A CN 201611259299A CN 106584869 A CN106584869 A CN 106584869A
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- China
- Prior art keywords
- transparent
- infrared laser
- laser
- dimensional
- monolayer
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
- B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
- B29C65/1616—Near infrared radiation [NIR], e.g. by YAG lasers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/40—Removing material taking account of the properties of the material involved
- B23K26/402—Removing material taking account of the properties of the material involved involving non-metallic material, e.g. isolators
-
- 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
Abstract
The invention discloses a three-dimensional resin solid manufacturing technology. The three-dimensional resin solid manufacturing technology comprises the steps that (1) layered modeling is conducted on a three-dimensional solid, and cutting forming is conducted on a transparent board; (2) a cut transparent single layer is fixed to a forming substrate, and the part between layers is coated with near-infrared laser absorbent; (3) the composite layer structure is scanned by a near-infrared laser, and the near-infrared laser absorbent absorbs heat so as to achieve welding between transparent single layers; and (4) the steps from (1) to (3) are conducted again, and one transparent single layer is added every time till the three-dimensional resin solid is formed. Through the method provided by the invention, the forming precision of the three-dimensional solid can be improved, the surface smoothness of an inner channel is ensured, during manufacturing, the cost is reduced, and time is saved. The method has broad application prospects in the fields such as precise medical devices and precise machinery.
Description
Technical field
The application is related to a kind of method of three-dimensional resinous entity manufacture, belongs to 3D printing technique field.
Background technology
The concept of increases material manufacturing technology originates from late 1970s to the beginning of the eighties, the increasing material manufacturing one of resin material
As include melting extrusion molding, selective laser knot burning, layer separated growth method etc..For melting extrusion forming technique, molding
Workpiece surface roughness is larger, it is impossible to meet requirement of the accurate inner flow passage to fineness, and general for the molding of draping face
Need bracing frame, complex procedures.For selective laser knot burns, the surface roughness of profiled member is formed relative to melting extrusion
Improved, but generally required powder body material, material cost is high, and shaping efficiency is low, it is impossible to realize the molding of draping face.For
Layer separated growth method, current interlayer is typically using the method for bonding, and interlaminar strength is low.
A kind of saving of time is developed, high accuracy three-dimensional entity manufacture method becomes problem demanding prompt solution.
The content of the invention
The application is directed to the problems referred to above, develop it is a kind of based on Layered Manufacturing Technology, and precision laser cutting with it is sharp
Light penetrates the increase and decrease material composite manufacturing method of solder technology combination.The method that the application is provided realize the high accuracy of material into
Type, improves the surface smoothness of shaping efficiency and complex structural member inner flow passage, realizes without the molding for supporting draping face.The method exists
The fields such as high-precision medical apparatus, precision optical machinery have a extensive future.
It is described in three-dimensional resinous entity manufacture method, it is characterised in that comprise the following steps：
(1) three-dimensional resinous entity layering is modeled, multiple single-layer models is obtained, according to each single-layer model to clear sheet
Cut, obtained each transparent monolayer corresponding with each single-layer model；
(2) by the interlayer coating near-infrared laser of two adjacent transparent monolayers in the transparent monolayer obtained by the step (1)
Absorbent, obtains lamination layer structure；
(3) lamination layer structure that the step (2) is obtained is scanned using near-infrared laser, so that the iraser absorbs
Agent absorbs heat to welding between transparent monolayer；
(4) an adjacent transparent monolayer, repeat step (2) to step (3), until the three-dimensional resinous entity are increased every time
Complete molding.
Preferably, the modeling method is：First with mapping software building three-dimensional entity model, then the three-dimensional to building is real
Body Model carries out layered shaping, and layering thickness is consistent with resin layer thickness.
Preferably, the clear sheet is that, with thermoplastic transparent resin material, thickness is 0.001mm～10mm.
It is further preferred that the material of the clear sheet is selected from polymethyl methacrylate (being abbreviated as PMMA), polyamides
In amine (being abbreviated as PA), polyphenylene sulfide (being abbreviated as PPS), polyethylene (being abbreviated as PE), polyether-ether-ketone (being abbreviated as PEEK) extremely
Few one kind.
Preferably, the method for excision forming is to utilize CO in the step (1)2Laser cuts to clear sheet.
Preferably, the near-infrared laser absorbent of coating is selected from white carbon black, graphite, tin indium oxide, oxidation in the step (2)
At least one in copper, CleanWeld reagents.
Preferably, when the step (3) is welded, transparent frock is placed at the top of transparent monolayer to provide pressure.
It is further preferred that when the step (3) is welded, transparent frock is placed at the top of transparent monolayer and to described
The lamination layer structure that step (2) is obtained applies the pressure of 0.01MPa to 5MPa
Preferably, the transparent frock is more than or equal to 95% to near-infrared laser absorbance.
It is further preferred that at least one of the transparent frock in transparent resin, glass, quartz, crystalline ceramics.
Preferably, the near-infrared laser that the step (3) uses, wavelength is 780nm～1100nm.
Preferably, the near-infrared laser that the step (3) uses swashs selected from solid near-infrared laser, quasiconductor near-infrared
At least one in light, Fiber optic near infrared spectroscopy laser, video disc near-infrared laser.
Preferably, near-infrared laser is scanned in the lamination layer structure that the step (2) obtains used in the step (3)
Method is Surface scan.
It is further preferred that the method for the Surface scan is selected from scanning galvanometer high-velocity scanning or linear beam spot entire scan.
In the application, " CleanWeld reagents " refers to that the leuco dye that the Welding Institute TWI is developed and sold is inhaled
Agent is received, absorber coatings is used it as to be welded and can obtain during transparent or colored materials transparent weld seam.
The beneficial effect that the application can be produced includes：
1) method provided herein, the combination of cut and laser welding, it is possible to achieve transparent plastic it is high-precision
Degree molding, so as to improve the intensity of shaping efficiency and profiled member.
2) method provided herein, manufactures 3D solid by way of successively welding, and realizes that nothing makes draping face
Molding, it is ensured that labyrinth inner surface fineness.
3) method provided herein, can simplify 3D solid manufacturing equipment, shorten preparation time.
Description of the drawings
Fig. 1 is the flow chart that laser increases and decreases material composite manufacturing method.
Fig. 2 is laser increase and decrease material composite manufacturing method manufacture schematic diagram.
Fig. 3 is to penetrate welding schematic diagram in laser increase and decrease material composite manufacturing method.
Specific embodiment
With reference to embodiment in detail the application is described in detail, but the application is not limited to these embodiments.
The application experiment multifunctional optical fiber Laser Processing platform on carry out, the platform by SPI 200W optical fiber lasers,
ABB six-shaft industrial robots, linear beam spot head, scanning galvanometer, air flow system, central control system and software control system structure
Into.If no special instructions, the raw material and absorbent in embodiments herein is bought by commercial sources.
The application is using tension tester to welding intensity analysiss.
The cutting welding of the resin material of embodiment 1
Below in conjunction with accompanying drawing, the preferred embodiment of the application is described in detail.One kind of the application is three-dimensional real
The flow process of manufacturing method is as shown in figure 1, the layered modeling of 3D solid is by taking Fig. 2 as an example.Specifically：
Using the thick clear sheets of 0.1mm, with PMMA as raw material, following steps are carried out：
1) layered modeling, thickness in monolayer 0.1mm are carried out to 3D solid；
2) CO is utilized2Laser according to path planning, according to the single-layer model of the bottom, cut by the precision for carrying out clear sheet
Cut, obtain transparent monolayer, referring to Fig. 2 (a)；
3) after the completion of cutting, transparent monolayer is placed on into the formed substrates resin that upper surface applies CleanWeld absorbent
On, and apply pressure with 3mm thick suprasil frock；
4) scanned on quartz plate using 1064nm linear beam spots, scan mode is linear beam spot entire scan, referring to Fig. 2
(b), laser penetration quartz frock and upper strata resin bed after, absorbed by absorbent, produce the interlayer of heat melts two and absorbent
The resin of contact, realization penetrates welding, welds schematic diagram such as Fig. 3；
5) quartzy frock is removed, in step 4) molding welding after upper surface apply one layer of CleanWeld absorbent, profit
Use CO2Laser is according to path planning successively to adjacent transparent sheet material precision laser cutting, repeat step 3) and 4), until molding is complete
Into obtaining sample 1#。
Embodiment 2
Model and operation, with embodiment 1, are simply the thick PA of 0.001mm from clear sheet, and 3D solid is layered
Modeling, thickness in monolayer 0.001mm, near-infrared laser absorbent is white carbon black and CleanWeld reagents according to mass ratio 1:1 mixing.
After the completion of molding, sample 2 is obtained#。
Embodiment 3
Model and operation, with embodiment 1, are simply the thick PPS of 0.01mm from clear sheet, and 3D solid is layered
Modeling, thickness in monolayer 0.01mm, near-infrared laser absorbent is tin indium oxide, and frock is saturating for near-infrared laser absorbance 95%
Bright glass, welding laser is solid near-infrared laser, and scan mode is scanning galvanometer high-velocity scanning.After the completion of molding, sample is obtained
Product 3#。
Embodiment 4
Model and operation, with embodiment 1, are simply the thick PE of 1mm from clear sheet, and 3D solid carries out layered modeling,
Thickness in monolayer 1mm, near-infrared laser absorbent is copper oxide, and frock is the crystalline ceramics of near-infrared laser absorbance 98%, welds
It is Fiber optic near infrared spectroscopy laser to connect laser, and scan mode is scanning galvanometer high-velocity scanning.After the completion of molding, sample 4 is obtained#。
Embodiment 5
Model and operation, with embodiment 1, are simply the thick PEEK of 10mm from clear sheet, and 3D solid carries out layering and builds
Mould, thickness in monolayer 10mm, welding laser is quasiconductor near-infrared laser, and scan mode is scanning galvanometer high-velocity scanning.Molding is complete
Cheng Hou, obtains sample 5#。
Comparative example 1
With the embodiment of the present application 1, using fusion sediment formula (FDM) 3D printing method molding, moulding material is thermoplastic to model
Property resin, after the completion of molding, the time used be embodiment 1 method used by 10 times of the time, obtain sample D1#。
Tensile strength is tested
The sample 1 obtained in the embodiment of the present application 1#The sample D1 obtained with comparative example 1#Tensile strength test is carried out, as a result
Show sample 1#Tensile strength be more than sample D1#, i.e. the sample tensile strength of the scheme molding of the embodiment of the present application 1 is more than adopting
With the sample of the comparative example 1 of fusion sediment formula (FDM) 3D printing method molding.
Formed precision
The sample 1 obtained in the embodiment of the present application 1#Size it is consistent with the model；And sample D1#Size with it is described
Model has certain error, and after the processing that needs to polish again the effect consistent with the model is can be only achieved.That is the embodiment of the present application 1
The sample 1 of scheme molding#Dimensional accuracy be substantially better than comparative example 1 using fusion sediment formula (FDM) 3D printing method molding
Sample D1#.And the plastic complicated microchannel of scheme of the embodiment of the present application 1, microchannel surface is highly polished；And comparative example 1
Fusion sediment formula (FDM) method cannot molding complexity microchannel.
Comparative example 2
With the embodiment of the present application 1, using selective laser sintering (SLS) 3D printing method molding, moulding material is model
Thermoplastic resin, after the completion of molding, the time used be the embodiment of the present application 1 method used by more than 15 times of the time, obtain sample
Product D2#。
Tensile strength is tested
The sample 1 obtained in the embodiment of the present application 1#The sample D2 obtained with comparative example 2#Tensile strength test is carried out, as a result
Show sample 1#Tensile strength and sample D2#It is basically identical.
Formed precision
The sample 1 obtained in the embodiment of the present application 1#Size it is basically identical with the model, surface is with little need for place
Reason；And the sample D2 obtained in comparative example 2#Surface roughness is larger after molding, needs follow-up polishing processing, and cooled
Profiled member can reduce in journey, and size has larger error with the model.
In sum, the dimensional accuracy of the sample of the scheme molding of the embodiment of the present application 1 is substantially better than and is swashed using selectivity
The sample of the comparative example 2 of light sintering (SLS) 3D printing method molding.
Comparative example 3
With the embodiment of the present application 1, using stereolithography (SLA) 3D printing method molding, moulding material is light to model
Solidified resin, after the completion of molding, the time used be embodiment 1 method used by 5 times of the time, obtain sample D3#。
Tensile strength is tested
The sample 1 obtained in the embodiment of the present application 1#The sample D3 obtained with comparative example 3#Tensile strength test is carried out, as a result
Show sample 1#Tensile strength be significantly greater than sample D3#, i.e. the sample tensile strength of the scheme molding of the embodiment of the present application 1 is big
In the sample of the comparative example 3 using stereolithography (SLA) 3D printing method molding.
Formed precision
The sample 1 obtained in the embodiment of the present application 1#Size it is basically identical with the model；And sample D3#After molding easily
Diminution is produced, size has larger error with the model, and it is consistent with the model that surface needs polishing to can be only achieved after processing
Surface roughness.
In sum, the dimensional accuracy of the sample of the scheme molding of the embodiment of the present application 1 is substantially better than using three-dimensional flat board
The sample of the comparative example 3 of printing (SLA) 3D printing method molding.
The above, is only several embodiments of the application, any type of restriction is not done to the application, although this Shen
Please disclosed as above with preferred embodiment, but and be not used to limit the application, any those skilled in the art are not taking off
In the range of technical scheme, make a little variation using the technology contents of the disclosure above or modification is equal to
Effect case study on implementation, belongs in the range of technical scheme.
Claims (10)
1. a kind of manufacture method of three-dimensional resinous entity, it is characterised in that comprise the following steps：
(1) three-dimensional resinous entity layering is modeled, obtains multiple single-layer models, clear sheet is carried out according to each single-layer model
Cutting, obtains each transparent monolayer corresponding with each single-layer model；
(2) the interlayer coating near-infrared laser of two adjacent transparent monolayers in the transparent monolayer obtained by the step (1) is absorbed
Agent, obtains lamination layer structure；
(3) lamination layer structure that the step (2) is obtained is scanned using near-infrared laser, so that the iraser absorbent is inhaled
Heat is received to welding between transparent monolayer；
(4) an adjacent transparent monolayer, repeat step (2) to step (3), until the three-dimensional resinous entity is completed are increased every time
Molding.
2. method according to claim 1, it is characterised in that the clear sheet is with thermoplastic transparent resin material
Material, thickness is 0.001mm～10mm.
3. method according to claim 1, it is characterised in that the material of the clear sheet is selected from poly-methyl methacrylate
At least one in ester, polyamide, polyphenylene sulfide, polyethylene, polyether-ether-ketone.
4. method according to claim 1, it is characterised in that the method for excision forming is to utilize CO in the step (1)2
Laser cuts to clear sheet.
5. method according to claim 1, it is characterised in that the near-infrared laser absorbent of coating in the step (2)
At least one in white carbon black, graphite, tin indium oxide, copper oxide, CleanWeld reagents.
6. method according to claim 1, it is characterised in that when the step (3) is welded, at the top of transparent monolayer
Place transparent frock to apply pressure；
Preferably, when the step (3) is welded, transparent frock is placed at the top of transparent monolayer and is obtained to the step (2)
The lamination layer structure for arriving applies the pressure of 0.01MPa to 5MPa.
7. method according to claim 6, it is characterised in that the transparent frock to near-infrared laser absorbance more than etc.
In 95%；
Preferably, at least one of the transparent frock in transparent resin, glass, quartz, crystalline ceramics.
8. method according to claim 1, it is characterised in that the near-infrared laser that the step (3) uses, wavelength is
780nm～1100nm.
9. method according to claim 1, it is characterised in that the near-infrared laser that the step (3) uses is selected from solid
At least one in near-infrared laser, quasiconductor near-infrared laser, Fiber optic near infrared spectroscopy laser, video disc near-infrared laser.
10. method according to claim 1, it is characterised in that near-infrared laser scanning is described used in the step (3)
Method in the lamination layer structure that step (2) is obtained is Surface scan；
The Surface scan is selected from scanning galvanometer high-velocity scanning or linear beam spot entire scan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259299.8A CN106584869A (en) | 2016-12-30 | 2016-12-30 | Method for manufacturing three-dimensional resin solid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259299.8A CN106584869A (en) | 2016-12-30 | 2016-12-30 | Method for manufacturing three-dimensional resin solid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106584869A true CN106584869A (en) | 2017-04-26 |
Family
ID=58581479
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611259299.8A Pending CN106584869A (en) | 2016-12-30 | 2016-12-30 | Method for manufacturing three-dimensional resin solid |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107414295A (en) * | 2017-08-15 | 2017-12-01 | 大族激光科技产业集团股份有限公司 | A kind of watchband and its processing method and device |
| CN110774515A (en) * | 2019-10-08 | 2020-02-11 | 华中科技大学 | Method for manufacturing thick-wall transparent plastic part by sequential welding |
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| CN102438787A (en) * | 2009-04-17 | 2012-05-02 | 沓名宗春 | Method of laser machining of fiber-reinforced composite material and product made by the method |
| CN103071929A (en) * | 2013-01-04 | 2013-05-01 | 谭汉华 | Three-dimensional intelligent laser cutting equipment and operation method thereof |
| CN104527080A (en) * | 2014-12-01 | 2015-04-22 | 东北林业大学 | Method for manufacturing wood plastic sheet layered entity component based on ultrasonic welding |
| EP3034204A1 (en) * | 2014-09-24 | 2016-06-22 | Beijing Tiertime Technology Co. Ltd. | Optimized 3d printing method |
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2016
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438787A (en) * | 2009-04-17 | 2012-05-02 | 沓名宗春 | Method of laser machining of fiber-reinforced composite material and product made by the method |
| CN103071929A (en) * | 2013-01-04 | 2013-05-01 | 谭汉华 | Three-dimensional intelligent laser cutting equipment and operation method thereof |
| EP3034204A1 (en) * | 2014-09-24 | 2016-06-22 | Beijing Tiertime Technology Co. Ltd. | Optimized 3d printing method |
| CN104527080A (en) * | 2014-12-01 | 2015-04-22 | 东北林业大学 | Method for manufacturing wood plastic sheet layered entity component based on ultrasonic welding |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107414295A (en) * | 2017-08-15 | 2017-12-01 | 大族激光科技产业集团股份有限公司 | A kind of watchband and its processing method and device |
| CN110774515A (en) * | 2019-10-08 | 2020-02-11 | 华中科技大学 | Method for manufacturing thick-wall transparent plastic part by sequential welding |
| CN110774515B (en) * | 2019-10-08 | 2021-04-20 | 华中科技大学 | Method for manufacturing thick-wall transparent plastic part by sequential welding |
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Application publication date: 20170426 |