CN105108590A - Polishing method of UV-cured 3D printing product - Google Patents
Polishing method of UV-cured 3D printing product Download PDFInfo
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- CN105108590A CN105108590A CN201510436762.0A CN201510436762A CN105108590A CN 105108590 A CN105108590 A CN 105108590A CN 201510436762 A CN201510436762 A CN 201510436762A CN 105108590 A CN105108590 A CN 105108590A
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- polishing
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- solidifies
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- finishing method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a polishing method of a UV-cured 3D printing product. The polishing method is characterized by comprising the following operations: a polishing liquid fluid is used for polishing the UV-cured 3D printing product, and the polishing temperature is controlled to be not lower than 30 DEG C; and after the surface roughness of the UV-cured 3D printing product reaches the requirement, the polishing is stopped, and the product is washed by water. The polishing method can effectively improve the polishing efficiency and shorten the polishing time through controlling such factors as polishing temperature, polishing liquid viscosity and polishing liquid pH by combining rough polishing and finish polishing processes.
Description
Technical field
The invention belongs to 3D and print rapid shaping field, relate to a kind of UV and solidify the finishing method that 3D prints goods.
Background technology
3D prints goods due to the method preparation by being layering, although the surface roughness of goods can be reduced by the method reducing printable layer thickness, but be subject to processing the restriction of technology and production time, thickness in monolayer can not be very little, this just causes 3D printing product surface to have larger roughness, except requiring lower product, it is necessary for carrying out polishing to 3D printing goods.
UV curing materials is printed as the technology more and more progress of goods by printer, because its available material extensively receives much concern.But UV solidifies 3D printing goods its material after UV solidification and just forms 3 D cross-linked structure, and hardness and wearability comparatively conventional material all will be got well, and the polishing difficulty for such material also more strengthens.
Summary of the invention
The object of the invention is the finishing method in order to provide a kind of UV to solidify 3D printing goods, can print goods to 3D more efficiently, particularly UV cured article carries out polishing.
The object of the invention is to be achieved through the following technical solutions:
UV solidifies the finishing method that 3D prints goods, it is characterized in that comprising following operation:
Utilize polishing fluid fluid to solidify 3D printing goods to UV and carry out polishing, control polish temperature simultaneously and be not less than 30 DEG C; Stop polishing when UV solidifies after 3D printing product surface roughness reaches requirement, with water, goods are cleaned.
Under alkaline environment, raised temperature contributes to UV cured article generation chemical reaction, is mainly for hydrolysis, can improves polishing efficiency.Under same polishing fluid and polishing condition (except temperature), polish temperature can be controlled and be not less than 40 DEG C.Preferably, control polish temperature at 50-90 DEG C, further preferably, control polish temperature at 60-80 DEG C.But when temperature is too high, easily makes goods generation deformation, thus affect the dimensional stability of goods, so polish temperature is also not easily too high.
1 atmospheric situation when polish temperature is higher than (or under equivalent environment condition) when 100 DEG C, in such a situa-tion, be that the polishing fluid system of solvent is just likely seethed with excitement with water, system is unstable, so when needs carry out polishing under the high temperature conditions, the dicyandiamide solution of polishing fluid can change the system of temperature higher than 100 DEG C of boilings into, as glycerine water solution system, pure glycerin system etc., hydrophilic system easier can carry out acid-base value adjustment, as the quality by changing NaOH obtains the NaOH glycerite of different Acidity of Aikalinity.The very large and polished product of high crosslink density for roughness, the polishing condition of high temperature high ph-values is highly profitable.Certainly, use the material of similar glycerine one class effectively can change the boiling temperature of system, the viscosity of system can also be changed simultaneously.Along with the increase of glycerol content, the viscosity of system also can increase thereupon.
Described polishing fluid can flow with the speed of certain rule.Polishing can be carried out in a reservoir, now, uses the mode of similar stirring that polishing fluid is flowed.Also can carry out in the intercommunicating device of similar channel, by the mode of pumping, polishing fluid be carried, make it have certain flow velocity.
When carrying out polishing, preferably, UV solidification 3D printing goods rotate with certain speed.When realizing, the direction of rotation is contrary with polishing fluid flow direction.This rotation, can be rotate continuously with certain speed, also can rotate certain hour, stop certain hour, and then repeated rotation, shut-down operation.
Selected polishing fluid has a great impact polishing effect and polishing efficiency, and the principal element had an impact comprises the viscosity, pH value, abrasive particle etc. of polishing fluid.
Under normal circumstances, will control when carrying out polishing operation to the viscosity of polishing fluid, temperature during viscosity, the polishing operation of polishing fluid itself is two comparatively simple governing factors.Preferably, the polishing fluid used viscosity when serviceability temperature is not more than 500mPas.Preferred further, the polishing fluid used viscosity when serviceability temperature is not more than 100mPas.Preferred further, the polishing fluid used viscosity when serviceability temperature is not more than 50mPas.Under some condition, the polishing fluid used viscosity when serviceability temperature needs to be not more than 10mPas.The factor such as degree of roughness, structure, deformation resistant temperature on the polished product surface as required of temperature during polishing operation is selected.
When using the abrasive particle such as silica, aluminium oxide, the pH value of polishing fluid is not easily too high, otherwise easily reacts; When using the abrasive particle of boron carbide one class, pH can be higher, as reached 14.Generally, during polishing fluid pH value < 12, polishing abrasive particle in polishing fluid, is used.In most cases, pH value >=10 of polishing fluid.
Under normal circumstances, the material that the abrasive particle used hardness is all higher, when polishing condition controls bad, abrasive particle may produce darker scuffing to goods, so, when polishing condition allows, do not use abrasive particle to be preferred.Usually, when polishing fluid pH value >=12, in polishing fluid, polishing abrasive particle is not used.Preferably, when polishing fluid pH value >=13, in polishing fluid, polishing abrasive particle is not used.Preferred further, when polishing fluid pH value >=14, in polishing fluid, do not use polishing abrasive particle.
When carrying out polishing, carry out the Ultrasonic Cleaning of certain power, and carry out with certain rule, namely can ultrasonic a period of time, stop a period of time.When goods are thinner, the corresponding reduction of the power selected.Adding of Ultrasonic Cleaning operation also effectively can improve polishing efficiency, shortens polishing time.For the system having abrasive particle, ultrasonic wave effectively can also stop agglomerate grain and sedimentation.
When carrying out polishing, preferably first carry out rough polishing under, condition that polish temperature is high large in polishing fluid pH value, more suitably reduce in polishing fluid pH value, carry out essence throwing under condition that polish temperature suitably reduces.Carry out the polishing fluid preferably not adding abrasive particle when essence is thrown.
After polishing terminates, UV is solidified 3D printing goods and be separated with polishing fluid, and clean again after rotating UV solidification 3D printing goods a period of time with certain speed.This separation method has: goods are proposed polishing fluid, by polishing fluid extraction etc.Residual most of polishing fluid can be separated from product surface by the rotation of certain speed, thus simplify cleaning procedure.
Afterwards, certain drying process can being carried out according to actual needs, drying as carried out, forced air drying etc.
Finally, goods complete for polishing are sprayed outermost layer coating as required, namely carry out rear spray treatment.Described outer layer coating can be thermoplastic, thermosetting, also can be photocuring.
In addition, in the present invention, described polishing fluid can buy the polishing fluids such as commercially available silica, aluminium oxide, also can suitably improve on basis, commercially available prod or prepare completely voluntarily.
Compared with prior art, the present invention has following innovation:
1, the method that this patent provides effectively can control polishing efficiency by controlling polish temperature.
2, under high pH conditions, do not use polishing abrasive particle to carry out polishing, effectively can reduce the scoring trace because abrasive particle causes.
3, the combination that rough polishing, essence are thrown effectively can improve polishing efficiency.
Detailed description of the invention
Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
embodiment 1
The UV that the present embodiment relates to solidifies the finishing method that 3D prints goods, it is characterized in that relating to following operation:
In polishing container, add polishing fluid, described polishing fluid (aqueous solution of NaOH) pH value is 14, without abrasive particle, controlling polish temperature is 30 DEG C, be fixed on downwards on rotation platform by goods, platform is positioned at above polishing container, and adjustment highly makes polished product be immersed in completely in polishing fluid, control rotation platform to rotate with the speed of 60r/min, carry out Ultrasonic Cleaning simultaneously, carry out according to following program, be i.e. first ultrasonic 30s, stop 30s again, polishing 2h.After polishing, goods are taken out, clean up with water, forced air drying.
In the present embodiment, it is also feasible for not carrying out Ultrasonic Cleaning, but carries out Ultrasonic Cleaning and can improve polishing efficiency.
embodiment 2
The UV that the present embodiment relates to solidifies the finishing method that 3D prints goods, it is characterized in that relating to following operation:
Polishing fluid is added in polishing container, described polishing fluid (the aqueous solution of NaOH, adding the boron carbide of total solution 0.05% mass fraction) pH value is 13, boron carbide abrasive particle, controlling polish temperature is 40 DEG C, goods are fixed on downwards on rotation platform, platform is positioned at above polishing container, and adjustment highly makes polished product be immersed in completely in polishing fluid, controls rotation platform and rotates with the speed of 60r/min, carry out Ultrasonic Cleaning, polishing 2h simultaneously.After polishing, goods are taken out, clean up with water, forced air drying.
embodiment 3
The UV that the present embodiment relates to solidifies the finishing method that 3D prints goods, it is characterized in that relating to following operation:
Polishing fluid is added in polishing container, described polishing fluid (the aqueous solution of sodium carbonate, adding the silica of total solution 0.1% mass fraction) pH value is 9, silica abrasive grain, controlling polish temperature is 60 DEG C, is fixed on downwards on rotation platform by goods, platform is positioned at above polishing container, adjustment highly makes polished product be immersed in completely in polishing fluid, controls rotation platform and rotates with the speed of 60r/min, polishing 8h.After polishing, goods are taken out, clean up with water, heating, drying.
embodiment 4
The UV that the present embodiment relates to solidifies the finishing method that 3D prints goods, it is characterized in that relating to following operation:
Polishing fluid is added in polishing container, described polishing fluid (adding the ratio mixing of 1L glycerine according to 1g NaOH), without abrasive particle, controlling polish temperature is 40 DEG C, and viscosity is approximately 280mPas, is fixed on downwards on rotation platform by goods, platform is positioned at above polishing container, adjustment highly makes polished product be immersed in completely in polishing fluid, controls rotation platform and rotates with the speed of 90r/min, polishing 5h.After polishing, goods are taken out, rotate 3min with the speed of 30r/min and polishing fluid is dried clean, then clean up with water, forced air drying.Finally, goods heat curing coating is carried out rear spray treatment.
embodiment 5
The UV that the present embodiment relates to solidifies the finishing method that 3D prints goods, it is characterized in that relating to following operation:
Polishing fluid 1 is added in polishing container, described polishing fluid 1(adds the ratio mixing of 0.6L glycerine, 0.4L water according to 40g NaOH), without abrasive particle, controlling polish temperature is 80 DEG C, be fixed on downwards on rotation platform by goods, platform is positioned at above polishing container, and adjustment highly makes polished product be immersed in completely in polishing fluid, control rotation platform to rotate with the speed of 90r/min, rough polishing 1h.Then polishing fluid is changed into polishing fluid 2(adds 1L water ratio mixing according to 10g NaOH), without abrasive particle, controlling polish temperature is 40 DEG C, goods are fixed on downwards on rotation platform, platform is positioned at above polishing container, adjustment highly makes polished product be immersed in completely in polishing fluid, and control rotation platform and rotate with the speed of 90r/min, essence throws 1h.
After polishing, goods are taken out, clean up with water, forced air drying.
embodiment 6
The UV that the present embodiment relates to solidifies the finishing method that 3D prints goods, it is characterized in that relating to following operation:
In polishing container, add polishing fluid, described polishing fluid (aqueous solution of NaOH) pH value is 14, without abrasive particle, controlling polish temperature is 40 DEG C, be fixed on downwards on rotation platform by goods, platform is positioned at above polishing container, and adjustment highly makes polished product be immersed in completely in polishing fluid, control rotation platform to rotate with the speed of 60r/min, carry out Ultrasonic Cleaning simultaneously, carry out according to following program, be i.e. first ultrasonic 30s, stop 30s again, polishing 2h.After polishing, goods are taken out, clean up with water, forced air drying.
Controlling polish temperature is that 40 DEG C of polishing efficiencies carried out are higher than controlling 30 DEG C of polishing efficiencies carried out in embodiment 1, and surface roughness reduces can be faster.Controlled by polish temperature at 50 DEG C, its polishing efficiency ratio controls also can be higher at 40 DEG C.And if control polish temperature lower than 30 DEG C, as 20 DEG C, then its polishing efficiency can be lower than what control 30 DEG C time.
embodiment 7
The UV that the present embodiment relates to solidifies the finishing method that 3D prints goods, it is characterized in that relating to following operation:
Polishing fluid is added in polishing canal, controlling polishing fluid flow velocity by delivery pump is 6m/min, described polishing fluid (adding the ratio mixing of 1L glycerine according to 1g NaOH), without abrasive particle, controlling polish temperature is 60 DEG C, viscosity is approximately 80mPas, be fixed on downwards on rotation platform by goods, platform is positioned at above polishing canal, and adjustment highly makes polished product be immersed in completely in polishing fluid, control rotation platform to rotate with the speed of 90r/min, polishing 4h.After polishing, goods are taken out, rotate 1min with the speed of 60r/min and polishing fluid is dried clean, then clean up with water, forced air drying.
Claims (10)
1. UV solidifies the finishing method that 3D prints goods, it is characterized in that comprising following operation:
Utilize polishing fluid fluid to solidify 3D printing goods to UV and carry out polishing, control polish temperature simultaneously and be not less than 30 DEG C; Stop polishing when UV solidifies after 3D printing product surface roughness reaches requirement, with water, goods are cleaned.
2. UV as claimed in claim 1 solidifies the finishing method that 3D prints goods, it is characterized in that controlling polish temperature at 50-90 DEG C.
3. UV as claimed in claim 1 solidifies the finishing method that 3D prints goods, it is characterized in that when carrying out polishing, and UV solidifies 3D printing goods and rotates with certain speed.
4. UV as claimed in claim 1 solidifies the finishing method that 3D prints goods, it is characterized in that used polishing fluid viscosity when serviceability temperature is not more than 500mPas.
5. UV as claimed in claim 1 solidifies the finishing method that 3D prints goods, it is characterized in that, as polishing fluid pH value < 12, using polishing abrasive particle in polishing fluid.
6. UV as claimed in claim 1 solidifies the finishing method that 3D prints goods, it is characterized in that, when polishing fluid pH value >=12, not using polishing abrasive particle in polishing fluid.
7. UV as claimed in claim 1 solidifies the finishing method that 3D prints goods, it is characterized in that, when carrying out polishing, carrying out the Ultrasonic Cleaning of certain power.
8. UV as claimed in claim 1 solidifies the finishing method that 3D prints goods, it is characterized in that first carrying out rough polishing under, condition that polish temperature is high large in polishing fluid pH value, more suitably reduces in polishing fluid pH value, carries out essence throwing under condition that polish temperature suitably reduces.
9. UV solidification 3D as claimed in claim 1 prints the finishing method of goods, it is characterized in that after polishing terminates, and UV is solidified 3D printing goods and is separated with polishing fluid, and cleans after solidifying 3D printing goods a period of time with certain speed rotation UV again.
10. UV as claimed in claim 1 solidifies the finishing method that 3D prints goods, it is characterized in that after polishing terminates, carries out rear spray treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510436762.0A CN105108590A (en) | 2015-07-23 | 2015-07-23 | Polishing method of UV-cured 3D printing product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510436762.0A CN105108590A (en) | 2015-07-23 | 2015-07-23 | Polishing method of UV-cured 3D printing product |
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| Publication Number | Publication Date |
|---|---|
| CN105108590A true CN105108590A (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510436762.0A Pending CN105108590A (en) | 2015-07-23 | 2015-07-23 | Polishing method of UV-cured 3D printing product |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111730863A (en) * | 2020-07-30 | 2020-10-02 | 华北理工大学 | Polishing method for 3D printed teeth |
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| CN1857865A (en) * | 2006-05-31 | 2006-11-08 | 天津晶岭微电子材料有限公司 | Control method for surface roughness of saphire substrate material |
| JP2008068390A (en) * | 2006-09-15 | 2008-03-27 | Noritake Co Ltd | Crystal material polishing method |
| CN101844320A (en) * | 2010-06-07 | 2010-09-29 | 湖南大学 | Precise high-efficiency polishing method and device for curved surface parts |
| CN203062448U (en) * | 2013-01-17 | 2013-07-17 | 辽宁工业大学 | Precise ultrasonic fluid jet polishing device |
| CN103433814A (en) * | 2013-08-31 | 2013-12-11 | 大连理工大学 | Machining method for nuclear power pump valve surface through polishing and finishing |
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2015
- 2015-07-23 CN CN201510436762.0A patent/CN105108590A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1857864A (en) * | 2006-05-31 | 2006-11-08 | 天津晶岭微电子材料有限公司 | Control method for high eliminating rate of saphire substrate material |
| CN1857865A (en) * | 2006-05-31 | 2006-11-08 | 天津晶岭微电子材料有限公司 | Control method for surface roughness of saphire substrate material |
| JP2008068390A (en) * | 2006-09-15 | 2008-03-27 | Noritake Co Ltd | Crystal material polishing method |
| CN101844320A (en) * | 2010-06-07 | 2010-09-29 | 湖南大学 | Precise high-efficiency polishing method and device for curved surface parts |
| CN203062448U (en) * | 2013-01-17 | 2013-07-17 | 辽宁工业大学 | Precise ultrasonic fluid jet polishing device |
| CN103433814A (en) * | 2013-08-31 | 2013-12-11 | 大连理工大学 | Machining method for nuclear power pump valve surface through polishing and finishing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111730863A (en) * | 2020-07-30 | 2020-10-02 | 华北理工大学 | Polishing method for 3D printed teeth |
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Application publication date: 20151202 |
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