CN110039784A - A kind of 3D printing workpiece post-processing approach - Google Patents
A kind of 3D printing workpiece post-processing approach Download PDFInfo
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- CN110039784A CN110039784A CN201910374835.6A CN201910374835A CN110039784A CN 110039784 A CN110039784 A CN 110039784A CN 201910374835 A CN201910374835 A CN 201910374835A CN 110039784 A CN110039784 A CN 110039784A
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- printing workpiece
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- 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
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/379—Handling of additively manufactured objects, e.g. using robots
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- 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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
Abstract
It is larger that there are surface foldings to overcome existing 3D printing workpiece, influence the problem of spray painting effect and toughness of material deficiency, the present invention provides a kind of 3D printing workpiece post-processing approach, including following operating procedure: 3D printing workpiece being immersed in 45 DEG C~100 DEG C of fluid and heated, eliminate the internal stress of 3D printing workpiece；The surface to be painted to 3D printing workpiece carries out rough grinding；Machined layer of polishing coating: liquid or soft coating material are coated on 3D printing workpiece surface to be painted, coating material part is penetrated into the interlayer gap of 3D printing workpiece surface, and coating material solidifies to obtain the polishing machined layer for being formed in 3D printing workpiece surface to be painted；It polishes polishing machined layer；Spray painting colouring is carried out on the surface of polishing machined layer.3D printing workpiece post-processing approach provided by the invention can effectively improve the structural strength and toughness of 3D printing workpiece, while keep 3D printing workpiece surface flat and smooth, improve the aesthetics of subsequent paint effect.
Description
Technical field
The invention belongs to processing decorated technical fields, and in particular to a kind of 3D printing workpiece post-processing approach.
Background technique
Existing 3D printer is based on fused deposition (FDM) technology, i.e., by depositing on layer at various height mostly
3D printing material (mostly ABS, PLA, resin) can carry out next layer of deposition, due to the printing after 3D printing material solidification
Principle, existing 3D printer inevitably wrinkle in the outer surface forming layer cascade fold of 3D printing workpiece, such as directly beat in 3D
It paints on print workpiece, then since to will lead to whole spray painting effect poor for the fold on its surface.
Existing settling mode first is that directly use milling tools, such as sand paper, polishing stick, 3D printing object surface into
Row grinding and buffing, then paints again, and this method has better effects, but due in the 3D printing part of hot melt accumulation technology
There are Stress non-homogeneity physical conditions (to expand with heat and contract with cold inconsistent cause) in portion, and the stress release of subsequent bruting process, which is also easy to produce, to be split
Line influences the coating smoothness on surface, and it is thinning to will lead to object using simple polishing process, it is made to be more easier to be broken, with
And hole caused by printer error and gap can not be filled up, or impacted during the grinding process and crack conditions occur,
Influence surface effect.In addition, stacking texture can more be deepened for the object poor for precision, cause to be difficult to grinding homogeneity,
Remaining texture is also inevitably had, is unable to reach whole uniform and smooth.
Existing settling mode second is that the poly-putty base chemical material used using automobile case is applied to 3D printing part table
Face, which is viscous flow, can fill up well 3D printing with it with air reaction after-hardening later
Texture behind the gap of part carries out sanding and polishing after its solidification again, and non-uniform position can repeat the operation, imitates until satisfied
Until fruit.But its disadvantage is clearly, due to that can thicken and aggravate object, can make object loss precision and ideal effect, and
And its material is although hard, but the problem for having brittleness easy to crack, and chemical reaction process has a severe toxicity, it is time-consuming and be not easy to grasp
Make.
Summary of the invention
For existing 3D printing workpiece, that there are surface foldings is larger, and influence to paint effect and toughness of material is insufficient asks
Topic, the present invention provides a kind of 3D printing workpiece post-processing approach.
It is as follows that the present invention solves technical solution used by above-mentioned technical problem:
The embodiment of the invention provides a kind of 3D printing workpiece post-processing approach, including following operating procedure:
It eliminates stress: 3D printing workpiece being immersed in 45 DEG C~100 DEG C of fluid and heated, eliminate the interior of 3D printing workpiece
Portion's stress；
Polish for the first time: the surface to be painted to 3D printing workpiece carries out rough grinding；
Machined layer of polishing coating: liquid or soft coating material are coated on 3D printing workpiece surface to be painted, coating
Material part is penetrated into the interlayer gap of 3D printing workpiece surface, and coating material solidifies to obtain that be formed in 3D printing workpiece to be painted
The polishing machined layer on surface；
It polishes polishing machined layer, forms it into smooth surface；
Spray painting colouring is carried out on the surface of polishing machined layer.
Optionally, in described " eliminating stress " operation, fluid uses water.
Optionally, in described " eliminating stress " operation, when the 3D printing workpiece is ABS material, the temperature of fluid is
80 DEG C~90 DEG C；When the 3D printing workpiece is PLA or SLA material, the temperature of fluid is 45 DEG C~55 DEG C.
Optionally, " polish for the first time " after " eliminate stress " operation before operation, by metal strip bend to it is described
Metal strip fitting is adhered to the 3D printing workpiece by hot melt adhesive by the compatible radian of non-painted surface of 3D printing workpiece
Non- painted surface on, cover at least one layer of fibrous material in the non-painted surface of 3D printing workpiece, and make the fibrous material
The metal strip is covered, applies at least one layer of epoxy resin in the outer surface of the fibrous material.
Optionally, in described " coating of the polishing machined layer " operation, coating material is selected from optic-solidified adhesive, and coating material is uniform
It polishes machined layer described in Stereolithography coated on passing through after 3D printing workpiece surface.
Optionally, in described " coating of the polishing machined layer " operation, coating material, which is selected from, mends native agent, and coating material is uniformly applied
Spontaneous curing forms the polishing machined layer after being overlying on 3D printing workpiece surface.
Optionally, in described " coating of the polishing machined layer " operation, coating material is selected from epoxy resin, and coating material is uniform
The polishing machined layer is formed coated on spontaneous curing after 3D printing workpiece surface.
Optionally, described " polishing polishing machined layer ", which operates, includes:
In the surface coated matte paint layer of polishing machined layer；
Second is carried out to the polishing machined layer for coating dumb light paint layer to polish；
Silver color paint layer is sprayed on the surface of polishing machined layer；
Third time polishing is carried out to the polishing machined layer for coating silver color paint layer.
Optionally, polishing for the first time is 80~300 mesh polishing bastinade mill；Second of polishing is 120~240 mesh polishing bastinade
Mill, toward applying water flow in the polishing machined layer while second polishes；Third time polishing is successively selected from 300 mesh, 600
Mesh, 800 mesh, 1200 mesh, 1800 mesh sand paper polish to polishing machined layer, add while third time is polished toward the polishing
Apply water flow on work layer.
Optionally, the 3D printing workpiece is the material of the three-dimensional modeling printing based on Three-dimensional Design Software.
3D printing workpiece post-processing approach provided by the invention, by forming polishing processing on the surface of 3D printing workpiece
Layer enters polishing machined layer infiltration in the interlayer gap of 3D printing workpiece surface, fills the interlayer of 3D printing workpiece surface
Gap directly polishes to the surface of the polishing machined layer when polishing, can effectively improve the flat of 3D printing workpiece surface
Whole degree and smoothness, to improve the aesthetics of subsequent paint effect.On the other hand, this 3D printing workpiece post-processing approach into
By the way that 3D printing workpiece to be immersed in 45 DEG C~100 DEG C of fluid before row polishing machined layer application, in 3D printing workpiece
The stress in portion is discharged, to solve the problems, such as the uneven caused not impact resistance of the internal stress of 3D printing workpiece, effectively
Ground improves the elastic properties of materials and toughness of 3D printing workpiece, avoids 3D printing workpiece forced breakage, while also avoiding stress and releasing
Put the influence to subsequent paint surface effect.
Specific embodiment
In order to which the technical problems, technical solutions and beneficial effects solved by the present invention is more clearly understood, below in conjunction with
Embodiment, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to explain
The present invention is not intended to limit the present invention.
The embodiment of the invention provides a kind of 3D printing workpiece post-processing approach, including following operating procedure:
It eliminates stress: 3D printing workpiece being immersed in 45 DEG C~100 DEG C of fluid and heated, eliminate the interior of 3D printing workpiece
Portion's stress；
Polish for the first time: the surface to be painted to 3D printing workpiece carries out rough grinding；
Machined layer of polishing coating: liquid or soft coating material are coated on 3D printing workpiece surface to be painted, coating
Material part is penetrated into the interlayer gap of 3D printing workpiece surface, and coating material solidifies to obtain that be formed in 3D printing workpiece to be painted
The polishing machined layer on surface；
It polishes polishing machined layer, forms it into smooth surface；
Spray painting colouring is carried out on the surface of polishing machined layer.
The 3D printing workpiece post-processing approach adds polishing by forming polishing machined layer on the surface of 3D printing workpiece
Work layer material infiltrates through in the interlayer gap of 3D printing workpiece surface, the interlayer gap of 3D printing workpiece surface is filled, when polishing
It directly polishes the surface of the polishing machined layer, the flatness of 3D printing workpiece surface and smooth can be effectively improved
Degree, to improve the aesthetics of subsequent paint effect.On the other hand, this 3D printing workpiece post-processing approach is carrying out polishing processing
Layer apply before by the way that 3D printing workpiece is immersed in 45 DEG C~100 DEG C of fluid, to the stress of 3D printing inside workpiece into
Row release effectively improves 3D to solve the problems, such as the uneven caused not impact resistance of the internal stress of 3D printing workpiece
The elastic properties of materials and toughness for printing workpiece, avoid 3D printing workpiece forced breakage, while also avoiding stress release to subsequent spray
Paint the influence of surface effect.
In some embodiments, in described " eliminating stress " operation, fluid uses water.
3D printing workpiece is heated using water, since water has preferable conduction of heat, to 3D printing workpiece table
Face has the function of preferably infiltrating and being bonded, while can also penetrate into the interlayer gap of 3D printing workpiece, so as to
Effectively the different location of 3D printing workpiece is heated simultaneously, keep from heat uneven problem, is conducive to the 3D printing
The abundant release of inside workpiece stress, makes toughness of material get a promotion, and the impact resistance of 3D printing workpiece gets a promotion, favorably
In carrying out following process to 3D printing workpiece, 3D printing workpiece during following process is avoided to be broken.
The Immersion time of the 3D printing workpiece is adjusted according to the thickness of 3D printing workpiece and material adaptability, with
Promote the complete release of 3D printing inside workpiece stress.
After completion " eliminate stress " operation, the 3D printing workpiece can be removed by the modes such as drying or spontaneously drying
Moisture avoids influence of the residual moisture to subsequent polishing machined layer coating.
Since the adoptable material of the 3D printing workpiece is different, heating temperature needed for eliminating stress is also required to basis
Material carries out certain adjustment, specifically, ABS material, PLA material or SLA material can be used in the 3D printing workpiece.
In some embodiments, in described " eliminating stress " operation, when the 3D printing workpiece is ABS material, fluid
Temperature be 80 DEG C~90 DEG C.
In some embodiments, in described " eliminating stress " operation, when the 3D printing workpiece is PLA or SLA material,
The temperature of fluid is 45 DEG C~55 DEG C.
In some embodiments, it " polishes for the first time " after " eliminating stress " operation before operation, metal strip is bent
At radian compatible with the non-painted surface of the 3D printing workpiece, metal strip fitting is adhered to by the 3D by hot melt adhesive
On the non-painted surface for printing workpiece, at least one layer of fibrous material is covered in the non-painted surface of 3D printing workpiece, and make described
Fibrous material covers the metal strip, applies at least one layer of epoxy resin in the outer surface of the fibrous material.
As an example, gauze can be used in the fibrous material.
Ring under the premise of not influencing 3D printing thickness of workpiece, as far as possible in the external coating more layers of fibrous material
Oxygen resin, to keep 3D printing workpiece firmer.It, can be soft with sand paper polishing epoxy resin layer or covering for comfortable wearing
Soft eva foam thin slice is isolated.
The mobility for being applied to the epoxy resin of the non-painted surface of 3D printing workpiece is better than to form the polishing machined layer
The mobility of coating material selects mobility lower since the painted surface of the 3D printing workpiece is smooth as far as possible
Coating material, to avoid because caused by high fluidity the problems such as rough surface.
The metal strip is using aluminum strip or zinc-iron alloy item and other relatively soft metal strips.
By covering one or more layers fibrous material in the wall surface of 3D printing workpiece, fibrous material is set to cover metal strip, so
Epoxy resin layer is formed on the surface of fibrous material afterwards, epoxy resin has resistance to mould characteristic, low-shrinkage and preferable size
Stability, so preferable epoxy resin of mechanical property are contacted by fibrous material with the wall surface of metal strip and 3D printing workpiece,
So that the metal strip, fibrous material and epoxy resin can the 3D printing workpiece non-painted surface shape it is webbed plus
Fixing structure, to effectively be improved to the structural strength of 3D printing workpiece, so that 3D printing workpiece is more firm flexible
And it is not easy deformation, it realizes the reinforcing of 3D printing workpiece, improves the structural rigidity of 3D printing workpiece.
Effectively 3D printing workpiece is reinforced, to be conducive to carry out 3D printing workpiece in subsequent bruting process
Support, avoids being broken 3D printing workpiece due to the force in bruting process, while guaranteeing 3D in subsequent use process
Print the stability of workpiece.
In various embodiments, the polishing machined layer can be formed from different materials, specifically, the polishing is processed
Layer can be selected from optic-solidified adhesive, mend native agent or epoxy resin.
The polishing machined layer is solidified to obtain by one or more layers coating material, and every layer of coating thickness of coating material is
0.1-0.15mm。
In some embodiments, in described " coating of the polishing machined layer " operation, coating material is selected from optic-solidified adhesive, will coat
Material is evenly applied to after 3D printing workpiece surface through machined layer of polishing described in Stereolithography.
As an example, the optic-solidified adhesive can be selected from UV optic-solidified adhesive, SLA optic-solidified adhesive or other with photo-curable
The colloid of energy.
In some embodiments, in described " coating of the polishing machined layer " operation, coating material, which is selected from, mends native agent, will coat material
Spontaneous curing forms the polishing machined layer after material is evenly applied to 3D printing workpiece surface.
The native agent of the benefit can be used toothpaste and mend soil.
In some embodiments, in described " coating of the polishing machined layer " operation, coating material is selected from epoxy resin, will coat
Spontaneous curing forms the polishing machined layer after material is evenly applied to 3D printing workpiece surface.
If the surface area to be painted of 3D printing workpiece is larger or interlayer gap is not filled by disposable uniform fold, can
Repetitive coatings operation, until the polishing machined layer is completely covered in the surface to be painted of the 3D printing workpiece.
It is similar with the epoxy resin of non-painted surface, under the premise of not influencing 3D printing thickness of workpiece, exist as far as possible
The coating material of the painted surface brushing more layers of 3D printing workpiece, to keep 3D printing workpiece firmer.
When spraying multilayer epoxy resin, the painted surface of more smooth 3D printing workpiece and non-japanning table in order to obtain
Face after the epoxy resin layer primary solidification of preceding layer brushing, then carries out the brushing of the epoxy resin of later layer.As an example,
When forming the epoxy resin layer of non-painted surface of 3D printing workpiece, after brushing first layer epoxy resin, through the preliminary of 20min
After solidification, then brushing second layer epoxy resin.When forming the epoxy resin layer of painted surface of 3D printing workpiece, first is brushed
After layer epoxy resin, after the primary solidification of 60min, then brushing second layer epoxy resin, those skilled in the art can also bases
The curing time of the epoxy resin of use adjusts accordingly.
In some embodiments, described " polishing polishing machined layer ", which operates, includes:
In the surface coated matte paint layer of polishing machined layer, coated matte paint layer.
Second is carried out to the polishing machined layer for coating dumb light paint layer to polish, and polishing can be highlighted by dumb light paint layer
The shade and lines of layer surface are processed, so as to highlight the interlayer gap of polishing processing layer surface and the protrusion knot on surface
Structure can targetedly polish to redundance in the grinding process, to improve the smoothness of polishing.
Silver color paint layer is sprayed on the surface of polishing machined layer.
Third time polishing is carried out to the polishing machined layer for coating silver color paint layer, dumb light during polishing due to second
Paint layer can be polished and consume, therefore in the spraying for carrying out needing to carry out silver color paint layer between third time polishing, to be conducive to air exercise
Mill machined layer surface condition is checked that the silver color paint layer is to be arranged for final products appearance for metal-like, at it
In his embodiment, perception requirement to final products without metal-like, can also be used other paint layers to the silver color paint layer into
Line replacement.
In some embodiments, polishing for the first time is 80~300 mesh polishing bastinade mill；Second of polishing is 120~240 mesh
It polishes bastinade mill, toward applying water flow in the polishing machined layer while second polishes；Third time polishing is successively to be selected from
300 mesh, 600 mesh, 800 mesh, 1200 mesh, 1800 mesh sand paper polish to polishing machined layer, past while third time is polished
Apply water flow in the polishing machined layer.
The first time polishing is rough grinding, more obvious on the polishing machined layer outer surface its purpose is to remove
Protrusion part, the polishing machined layer is presented for the compatible surface in the 3D printing workpiece surface to be painted.It is described
Second polishing is rough grinding, the purpose is to check 3D printing workpiece surface by dumb light paint layer, to 3D printing workpiece surface into
The polishing of row specific aim, side can be avoided friction production toward water flow is applied in the polishing machined layer during second polishes
Raw high temperature causes model to deform.The third time polishing is essence polishing, as the mesh number of the polishing stick of selection is bigger, is beaten
The 3D printing workpiece surface to be painted ground is then more smooth, and side is toward applying in the polishing machined layer during third time is polished
Add water flow, can be avoided the high temperature that friction generates causes model to deform.It should be noted that if you need to wait for 3D printing workpiece
Painted surface shows metal-like, then third time polishing uses the sand paper of the mesh number within 1200~1800；If you need to beat 3D
Print workpiece surface to be painted shows ceramics or glass texture, then third time polishing uses the sand paper of 2200 or more mesh number.
In some embodiments, the 3D printing workpiece is the material of the three-dimensional modeling printing based on Three-dimensional Design Software.
The present invention is further detailed by the following examples.
Embodiment 1
The present embodiment is for illustrating 3D printing workpiece post-processing approach disclosed by the invention, including following operating procedure:
The three-dimensional modeling of mask shape is obtained using UG software design.
Printed according to the three-dimensional modeling of obtained mask shape using 3D printer, the 3D printing material used for
ABS material obtains 3D printing workpiece；
3D printing workpiece is immersed in 85 DEG C of water and is heated, eliminates the internal stress of 3D printing workpiece；
Metal strip is bent into radian compatible with the inner surface of the 3D printing workpiece, by hot melt adhesive by a plurality of gold
Belong to item fitting to be adhered on the inner surface of the 3D printing workpiece, cover two layers of fibrous material in the inner surface of 3D printing workpiece,
And the fibrous material is made to cover a plurality of metal strip, apply shellring oxygen resin in the outer surface of the fibrous material；
It polishes for the first time: rough grinding is carried out using outer surface of the 200 mesh polishing stick to 3D printing workpiece；
Machined layer of polishing coating: the UV optic-solidified adhesive of liquid is coated on 3D printing workpiece surface to be painted, UV photocuring
Glue part is penetrated into the interlayer gap of 3D printing workpiece surface, is irradiated using ultraviolet light, UV optic-solidified adhesive solidifies to obtain shape
At in the polishing machined layer on 3D printing workpiece surface to be painted；
In the surface coated matte paint layer of polishing machined layer；
Second is carried out to the polishing machined layer for coating dumb light paint layer using 200 mesh polishing stick to polish；
Silver color paint layer is sprayed on the surface of polishing machined layer；
Successively the polishing for coating silver color paint layer is added using the sand paper of 300 mesh, 600 mesh, 800 mesh, 1200 mesh, 1800 mesh
Work layer carries out third time polishing.
Spray painting colouring is carried out on the surface of polishing machined layer, obtains finished product S1.
Comparative example 1
This comparative example is used for comparative illustration 3D printing workpiece post-processing approach disclosed by the invention, including following operation walks
It is rapid:
The three-dimensional modeling of mask shape is obtained using UG software design.
Printed according to the three-dimensional modeling of obtained mask shape using 3D printer, the 3D printing material used for
ABS material obtains 3D printing workpiece；
3D printing workpiece is immersed in 85 DEG C of water and is heated, eliminates the internal stress of 3D printing workpiece；
Metal strip is bent into radian compatible with the inner surface of the 3D printing workpiece, by hot melt adhesive by a plurality of gold
Belong to item fitting to be adhered on the inner surface of the 3D printing workpiece, cover two layers of fibrous material in the inner surface of 3D printing workpiece,
And the fibrous material is made to cover a plurality of metal strip, apply shellring oxygen resin in the outer surface of the fibrous material；
It polishes for the first time: rough grinding is carried out using outer surface of the 200 mesh polishing stick to 3D printing workpiece；
In the outer surface coated matte paint layer of 3D printing workpiece；
Second is carried out using outer surface of the 200 mesh polishing stick to the 3D printing workpiece for coating dumb light paint layer to polish；
Silver color paint layer is sprayed in the outer surface of 3D printing workpiece；
Successively use 3D printing of the sand paper of 300 mesh, 600 mesh, 800 mesh, 1200 mesh, 1800 mesh to silver color paint layer is coated
The outer surface of workpiece carries out third time polishing.
Spray painting colouring is carried out on the surface of polishing machined layer, obtains finished product D1.
Comparative example 2
This comparative example is used for comparative illustration 3D printing workpiece post-processing approach disclosed by the invention, including in embodiment 1 greatly
Part operation step, the difference is that:
It does not include the behaviour of " 3D printing workpiece is immersed in 85 DEG C of water and is heated, eliminate the internal stress of 3D printing workpiece "
Make step.
Obtain finished product D2.
Performance test
Appearance detection is carried out to the above-mentioned finished product S1 being prepared and D1, D2, it is as follows to obtain result:
There is obvious smooth surface using finished product S1 made from 3D printing workpiece post-processing approach provided by the invention,
Surface lacquer effect is similar with injecting products, and the toughness of finished product S1 and break resistance also compare other comparative examples obtained compared with
Big promotion；And the thickness of finished product D1 made from directly being polished on 3D printing workpiece is obviously thinning, structural strength is lower,
And due to 3D printing workpiece material quality problem itself, surface lacquer effect is rough；The 3D printing work of stress elimination is not carried out
Part finished product D2, with biggish brittleness, easy fracture carries out stress elimination to the finished product D2 after spray painting, surface irregularity occurs
Phenomenon.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of 3D printing workpiece post-processing approach, which is characterized in that including following operating procedure:
It eliminates stress: 3D printing workpiece being immersed in 45 DEG C~100 DEG C of fluid and heated, the inside for eliminating 3D printing workpiece is answered
Power；
Polish for the first time: the surface to be painted to 3D printing workpiece carries out rough grinding；
Machined layer of polishing coating: liquid or soft coating material are coated on 3D printing workpiece surface to be painted, coating material
Part is penetrated into the interlayer gap of 3D printing workpiece surface, and coating material, which solidifies to obtain, is formed in 3D printing workpiece surface to be painted
Polishing machined layer；
It polishes polishing machined layer, forms it into smooth surface；
Spray painting colouring is carried out on the surface of polishing machined layer.
2. 3D printing workpiece post-processing approach according to claim 1, which is characterized in that " eliminating stress " operation
In, fluid uses water.
3. 3D printing workpiece post-processing approach according to claim 1, which is characterized in that " eliminating stress " operation
In, when the 3D printing workpiece is ABS material, the temperature of fluid is 80 DEG C~90 DEG C；When the 3D printing workpiece be PLA or
When SLA material, the temperature of fluid is 45 DEG C~55 DEG C.
4. 3D printing workpiece post-processing approach according to claim 1, which is characterized in that after " eliminating stress " operation
Before " polishing for the first time " operation, metal strip is bent into radian compatible with the non-painted surface of the 3D printing workpiece,
Metal strip fitting is adhered on the non-painted surface of the 3D printing workpiece by hot melt adhesive, in the non-japanning of 3D printing workpiece
Surface covers at least one layer of fibrous material, and the fibrous material is made to cover the metal strip, in the appearance of the fibrous material
Face applies at least one layer of epoxy resin.
5. 3D printing workpiece post-processing approach according to claim 1, which is characterized in that " coating of polishing machined layer "
In operation, coating material is selected from optic-solidified adhesive, and coating material is evenly applied to after 3D printing workpiece surface by being light-cured into
It polishes described in type machined layer.
6. 3D printing workpiece post-processing approach according to claim 1, which is characterized in that " coating of polishing machined layer "
In operation, coating material, which is selected from, mends native agent, and spontaneous curing forms institute after coating material is evenly applied to 3D printing workpiece surface
State polishing machined layer.
7. 3D printing workpiece post-processing approach according to claim 1, which is characterized in that " coating of polishing machined layer "
In operation, coating material is selected from epoxy resin, and spontaneous curing forms after coating material is evenly applied to 3D printing workpiece surface
The polishing machined layer.
8. 3D printing workpiece post-processing approach according to claim 1, which is characterized in that it is described " to polishing machined layer into
Row polishing ", which operates, includes:
In the surface coated matte paint layer of polishing machined layer；
Second is carried out to the polishing machined layer for coating dumb light paint layer to polish；
Silver color paint layer is sprayed on the surface of polishing machined layer；
Third time polishing is carried out to the polishing machined layer for coating silver color paint layer.
9. 3D printing workpiece post-processing approach according to claim 8, which is characterized in that polishing for the first time is 80~300
Mesh polishing bastinade mill；Second of polishing is 120~240 mesh polishing bastinade mill, is added while polishing for second toward the polishing
Apply water flow on work layer；Third time polishing is successively selected from 300 mesh, 600 mesh, 800 mesh, 1200 mesh, 1800 mesh sand paper to polishing
Machined layer is polished, toward applying water flow in the polishing machined layer while third time is polished.
10. 3D printing workpiece post-processing approach according to claim 1, which is characterized in that the 3D printing workpiece is base
In the material that the three-dimensional modeling of Three-dimensional Design Software prints.
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| CN111745970A (en) * | 2020-07-07 | 2020-10-09 | 北华航天工业学院 | Post-processing method of 3D printed piece |
| 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 |
| CN113276404A (en) * | 2020-01-31 | 2021-08-20 | 精工爱普生株式会社 | Method for manufacturing three-dimensional object and three-dimensional molding device |
| CN113414979A (en) * | 2021-06-16 | 2021-09-21 | 共享智能铸造产业创新中心有限公司 | 3D printing method |
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| CN113276404A (en) * | 2020-01-31 | 2021-08-20 | 精工爱普生株式会社 | Method for manufacturing three-dimensional object and three-dimensional molding device |
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| 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 |
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| CN113844032A (en) * | 2021-09-24 | 2021-12-28 | 深圳森工科技有限公司 | Printed material and method for enhancing strength of printed material |
| CN113844032B (en) * | 2021-09-24 | 2023-12-26 | 深圳森工科技有限公司 | Printed material and strength enhancement method for printed material |
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