A kind of metal, alloy and ceramic part manufacturing process without going support
Technical field
The invention belongs to increasing material manufacturing method and technology fields, are related to a kind of without removing the metal supported, alloy and ceramics zero
Part manufacturing process.
Background technique
Many advantages of the increases material manufacturing technology with its short cycle, fast-response, high-freedom degree etc. compared to traditional diamond-making technique,
By the means of supplementing out economy as traditional diamond-making technique in manufacturing industry, in aerospace, energy heavy industry, biologic medical, model/tool etc.
The manufacture of the material parts such as field metal, alloy and ceramics obtains very big market.But it is currently various to can be used for form metal, close
The increasing material manufacturing technique of the materials such as gold and ceramics, is required to first add support in forming process, then passes through special object again
Reason or chemical method removal support.It is limited by removal support process, is utilizing increasing material manufacturing process forming metal, alloy and pottery
When the part of the materials such as porcelain, it can have the following problems:
1. going the process of support time-consuming and laborious;
2. going the process supported, there are injuring part risks;
3. there may be the supports that must be added but not can be removed for inside parts;
4. support residue may be detained in part.
Summary of the invention
The object of the present invention is to provide a kind of metal, alloy and ceramic part manufacturing process, go it is not necessary that support is specially arranged
Except process, the manufacturing cycle is shortened, reduces part injury risk.
The technical scheme adopted by the invention is that a kind of metal, alloy and ceramic part manufacturing process without going support,
Specifically includes the following steps:
Step 1, prepare the mixed slurry and backing material of part material;
Step 2, design support
The position for adding support is needed to be supported design in part, it is specific as follows: when the cantilevered out length of suspended feature is super
The continuous length of addition support and support and feature contacts director, wide direction are no more than 5mm and when support envelope completely when crossing 5mm
Close opened on part when inside parts fabrication hole make support communicated with outside;
Step 3, optical soliton interaction
It will get out the mixed slurry of part material through step 1 and backing material is respectively charged into and can shape more material photocurings
Equipment shapes corresponding material storehouse in storehouse, and imports the synusia information of the gained model after the processing of step 2 supported design, in model
It is first supported in the material storehouse internal shaping equipped with backing material in the forming process of each synusia, part material then is being housed again
Material storehouse formation of parts, obtain the part blank shaped;
Step 4, step 3 is post-processed by the good part blank of optical soliton interaction.
Prepare the mixed slurry of part material in step 1 specifically: take the solid phase particles of material to be formed and corresponding light
Quick resin, phase solvent, dispersing agent, under the conditions of being protected from light by stirring forming component uniform, slurry of modest viscosity, then vacuum
Stand the mixed slurry that part material is made in cleared bubble therein.
Prepare backing material in step 1 specifically: the selection resin same or similar with material resin performance to be formed adds
Enter a certain amount of solid granulates polymer carrier, keep its ingredient uniform by stirring under the conditions of being protected from light, then vacuum standing is removed
The backing material for having identical shrinking percentage with material to be formed is made in gas.
The d of the solid phase particles of material to be formed50Within the scope of 1-15um, the d of solid granulates polymer carrier50In 20-
Within the scope of 80um.
When carrying out optical soliton interaction in step 3, optical wavelength range used in uv equipment is 200-400nm;Institute when forming
It is 10-100um with lift height.
Post-processing in step 4 specifically: take out the good part blank of shape from uv equipment, clean blank with hairbrush
Surface is then immersed in the organic solvent of dissolvable uncured resin, until exposing cured surface by ultrasonic wave
Concussion removes the uncured resin being adhered on blank, then carries out again degreasing sintered.
The condition of degreasing are as follows: under normal pressure, atmosphere, 350-600 is increased to the heating rate of 0.1-5 DEG C/min
DEG C, keep the temperature furnace cooling after 1-10h.
The condition of sintering are as follows: by the part blank Jing Guo degreasing under atmosphere, gas pressure 10-200MPa, with 3-5
DEG C/heating rate of min is raised to 800-900 DEG C of heat preservation 0.5-2h, 1200- is then raised to the heating rate of 5-10 DEG C/min
1600 DEG C of heat preservation 0.5-3h.
The beneficial effects of the present invention are:
(1) removing step is supported without special setting, shortens the manufacturing cycle;
(2) without support process is gone, part injury risk is reduced;
(3) being supported on the degreasing stage automatically removes, and increases the freedom degree of inside parts structure design and is gone by degreasing
Except support, support residue will not be left in part.
Specific embodiment
The present invention is described in detail With reference to embodiment.
A kind of optical soliton interaction method without going support, specifically includes the following steps:
Step 1, prepare the mixed slurry and backing material of part material;
The solid phase particles of material to be formed and corresponding photosensitive resin, phase solvent, dispersing agent are taken, are passed through under the conditions of being protected from light
Stir that forming component is uniform, slurry of modest viscosity, then vacuum stands cleared bubble therein and mixing for part material is made
Close slurry;
It selects the resin same or similar with material resin performance to be formed that a certain amount of solid granulates macromolecule is added to fill out
Material keeps its ingredient uniform, then vacuum standing, gas removal under the conditions of being protected from light by stirring, is made with material to be formed with identical
The backing material of shrinking percentage;
The d of the solid phase particles of material to be formed50Within the scope of 1-15um, the d of solid granulates polymer carrier50In 20-
Within the scope of 80um;
Step 2, design support
The position for adding support is needed to be supported design in part, it is specific as follows: when the cantilevered out length of suspended feature is super
The continuous length of addition support and support and feature contacts director, wide direction are no more than 5mm and when support envelope completely when crossing 5mm
Close opened on part when inside parts fabrication hole make support communicated with outside;
Step 3, optical soliton interaction
It will get out the mixed slurry of part material through step 1 and backing material is respectively charged into and can shape more material photocurings
Equipment shapes corresponding material storehouse in storehouse, and imports the synusia information of the gained model after the processing of step 2 supported design, in model
It is first supported in the material storehouse internal shaping equipped with backing material in the forming process of each synusia, part material then is being housed again
Material storehouse formation of parts, obtain the part blank shaped, when carrying out optical soliton interaction, optical wavelength model used in uv equipment
It encloses for 200-400nm;Lift height used is 10-100um when forming;In forming process semi-finished product backing material forming storehouse with
Between part material forming storehouse when converting, by control semi-finished product above respective material storehouse residence time and purge flow
Flow velocity ensure that storeroom will not mutually pollute.
Step 4, step 3 is post-processed by the good part blank of optical soliton interaction
Specifically: the good part blank of shape is taken out from uv equipment, cleans blank surface with hairbrush, until exposing
Cured surface is then immersed in the organic solvent of dissolvable uncured resin, is adhered to by ultrasonic oscillation removing
Then uncured resin on blank carries out degreasing sintered again;The condition of degreasing are as follows: under normal pressure, atmosphere, with 0.1-5
DEG C/heating rate of min is increased to 350-600 DEG C, keep the temperature furnace cooling after 1-10h;The condition of sintering are as follows: will be by degreasing
Part blank is under atmosphere, gas pressure 10-200MPa, is raised to 800-900 DEG C of heat preservation with the heating rate of 3-5 DEG C/min
Then 0.5-2h is raised to 1200-1600 DEG C of heat preservation 0.5-3h with the heating rate of 5-10 DEG C/min.
The same or similar performance that resin material of the present invention requires when selecting is primarily referred to as, compatibility, density, cure shrinkage
Rate and fusing, gasification, decomposition temperature scope;Selected polymer carrier need to have and can mix with resin, have with resin similar
Fusing, gasification and decomposition temperature scope, decomposition product is through handling the feature that can be excluded completely.
The forming of 1 metal tantalum part of embodiment
(1) material prepares;
1. the preparation of part material mixed slurry: taking d50The ta powder of=15um after being dried with dispersing agent poly- third
Then olefin(e) acid ammonium, the mixing of phase solvent stearic acid are added double by 1,6- hexanediyl ester and styrax under the conditions of being protected from light
In the photosensitive resin of methyl ether preparation, diluent multi-functional acrylate is then added, 6h is stirred with the revolving speed of 300rad/min,
Then vacuum is lower than -0.06MPa, stands 10h, cleared bubble therein.
2. backing material prepares: the photosensitive resin that selection is prepared by 1,6 hexanediol diacrylate and benzoin dimethylether
D is added5012 powder of nylon of=20um keeps its ingredient uniform, then vacuum is quiet under the conditions of being protected from light as filler by stirring
Set degasification.
(2) supported design;
The position for adding support is needed to be supported design in part, the foundation for designing support is as follows: 1. working as suspended feature
Cantilevered out length need to add support when being more than 5mm;2. supporting may not exceed with the continuous length of feature contacts director, wide direction
5mm;3. fabrication hole is opened on part when support is completely enclosed within inside parts to be allowed to communicate with outside.
(3) optical soliton interaction;
Part material storehouse, the backing material dress of more material uv equipments will be packed into through the ready part material of step 1
Enter the fid feed bin of more material uv equipments, and import the synusia information of the gained model after the processing of step 2 supported design,
Optical wavelength range used in uv equipment is 365nm;Lift height used is 60um when forming.
(4) post-processing of blank
Forming workblank is taken out out of equipment, cleans blank surface with hairbrush, until exposing cured surface;Then by it
It immerses in the organic solvent that can dissolve uncured resin, the uncured resin being adhered on blank is removed by ultrasonic oscillation.
(5) degreasing sintered;
Degreasing process: under normal pressure, ar gas environment, 420 DEG C are increased to the heating rate of 0.5 DEG C/min, after keeping the temperature 10h
Furnace cooling.
Sintering process: under ar gas environment, gas pressure 200MPa is raised to 900 DEG C of heat preservations with the heating rate of 3 DEG C/min
Then 0.5h is raised to 1600 DEG C of heat preservation 2h with the heating rate of 10 DEG C/min.
The forming of 2 nickel base superalloy part of embodiment
(1) material prepares;
1. the preparation of part material mixed slurry: taking d50The nickel base superalloy powder of=5um after being dried with dispersion
Agent ammonium polyacrylate, the mixing of phase solvent polyalcohol, are then added under the conditions of being protected from light by epoxy acrylate, polyurethanes epoxy
In photosensitive resin prepared by resin and dialkylacetophenones, diaryl iodonium salt, 4h is stirred with the revolving speed of 400rad/min, is formed
The slurry of uniform component, modest viscosity, then vacuum (being lower than -0.06MPa) stands 20h, cleared bubble therein.
2. backing material prepares: selection is by epoxy acrylate, polyurethanes epoxy resin and dialkylacetophenones, two virtues
D is added in the photosensitive resin of base salt compounded of iodine preparation50The PC powder of=40um as filler, under the conditions of being protected from light by stirring make its at
Divide uniformly, then vacuum standing, gas removal.
(2) supported design;
The position for adding support is needed to be supported design in part, the foundation for designing support is as follows: 1. working as suspended feature
Cantilevered out length need to add support when being more than 5mm;2. supporting may not exceed with the continuous length of feature contacts director, wide direction
5mm;3. fabrication hole is opened on part when support is completely enclosed within inside parts to be allowed to communicate with outside.
(3) optical soliton interaction;
Part material storehouse, the backing material dress of more material uv equipments will be packed into through the ready part material of step 1
Enter the fid feed bin of more material uv equipments, and import the synusia information of the gained model after the processing of step 2 supported design,
Optical wavelength range used in uv equipment is 365nm;Lift height used is 80um when forming.
(4) post-processing of blank
Forming workblank is taken out out of equipment, cleans blank surface with hairbrush, until exposing cured surface;Then by it
It immerses in the organic solvent that can dissolve uncured resin, the uncured resin being adhered on blank is removed by ultrasonic oscillation.
(5) degreasing sintered;
Degreasing process: under normal pressure, ar gas environment, 390 DEG C are increased to the heating rate of 0.3 DEG C/min, after keeping the temperature 8h
Furnace cooling.
Sintering process: under ar gas environment, gas pressure 200MPa is raised to 900 DEG C of heat preservations with the heating rate of 5 DEG C/min
Then 2h is raised to 1200 DEG C of heat preservation 1h with the heating rate of 10 DEG C/min.
The forming of 3 aluminium oxide ceramics part of embodiment
(1) material prepares;
1. the preparation of part material mixed slurry: taking suitable d50The aluminium oxide ceramics powder of=1um is after being dried and divides
Powder ammonium polyacrylate, the mixing of phase solvent polyalcohol, are then added under the conditions of being protected from light by cycloaliphatic epoxy resin and sulfosalt
The photosensitive resin of preparation, is then being added acrylic glycidol ether, stirs 3h with the revolving speed of 600rad/min, forming component is equal
One, the slurry of modest viscosity, then vacuum (being lower than -0.06MPa) stands 10h, cleared bubble therein.
2. backing material prepares: the photosensitive resin that selection is prepared by 1,6 hexanediol diacrylate and benzoin dimethylether
D is added50The PBT powder of=40um keeps its ingredient uniform under the conditions of being protected from light as filler by stirring, and then vacuum standing is removed
Gas.
(2) supported design;
The position for adding support is needed to be supported design in part, the foundation for designing support is as follows: 1. working as suspended feature
Cantilevered out length need to add support when being more than 5mm;2. supporting may not exceed with the continuous length of feature contacts director, wide direction
5mm;3. fabrication hole is opened on part when support is completely enclosed within inside parts to be allowed to communicate with outside.
(3) optical soliton interaction;
Part material storehouse, the backing material dress of more material uv equipments will be packed into through the ready part material of step 1
Enter the fid feed bin of more material uv equipments, and import the synusia information of the gained model after the processing of step 2 supported design,
Optical wavelength range used in uv equipment is 365nm;Lift height used is 25um when forming.
(4) post-processing of blank
Forming workblank is taken out out of equipment, cleans blank surface with hairbrush, until exposing cured surface;Then by it
It immerses in the organic solvent that can dissolve uncured resin, the uncured resin being adhered on blank is removed by ultrasonic oscillation.
(5) degreasing sintered;
Degreasing process: under normal pressure, air environment, 450 DEG C are increased to the heating rate of 0.3 DEG C/min, after keeping the temperature 8h
Furnace cooling.
Sintering process: under air environment, being raised to 800 DEG C of heat preservation 1h with the heating rate of 5 DEG C/min, then with 6 DEG C/
The heating rate of min is raised to 1500 DEG C of heat preservation 1h.
The forming of 4 metal tantalum part of embodiment
(1) material prepares;
1. the preparation of part material mixed slurry: taking d50The ta powder of=10um after being dried with dispersing agent poly- third
Then olefin(e) acid ammonium, the mixing of phase solvent stearic acid are added double by 1,6- hexanediyl ester and styrax under the conditions of being protected from light
In the photosensitive resin of methyl ether preparation, diluent multi-functional acrylate is then added, 6h is stirred with the revolving speed of 300rad/min,
Then vacuum is lower than -0.06MPa, stands 10h, cleared bubble therein.
2. backing material prepares: the photosensitive resin that selection is prepared by 1,6 hexanediol diacrylate and benzoin dimethylether
D is added5012 powder of nylon of=30um keeps its ingredient uniform, then vacuum is quiet under the conditions of being protected from light as filler by stirring
Set degasification.
(2) supported design;
The position for adding support is needed to be supported design in part, the foundation for designing support is as follows: 1. working as suspended feature
Cantilevered out length need to add support when being more than 5mm;2. supporting may not exceed with the continuous length of feature contacts director, wide direction
5mm;3. fabrication hole is opened on part when support is completely enclosed within inside parts to be allowed to communicate with outside.
(3) optical soliton interaction;
Part material storehouse, the backing material dress of more material uv equipments will be packed into through the ready part material of step 1
Enter the fid feed bin of more material uv equipments, and import the synusia information of the gained model after the processing of step 2 supported design,
Optical wavelength range used in uv equipment is 400nm;Lift height used is 50um when forming.
(4) post-processing of blank
Forming workblank is taken out out of equipment, cleans blank surface with hairbrush, until exposing cured surface;Then by it
It immerses in the organic solvent that can dissolve uncured resin, the uncured resin being adhered on blank is removed by ultrasonic oscillation.
(5) degreasing sintered;
Degreasing process: under normal pressure, ar gas environment, 400 DEG C are increased to the heating rate of 0.1 DEG C/min, after keeping the temperature 5h
Furnace cooling.
Sintering process: under ar gas environment, gas pressure 150MPa is raised to 800 DEG C of heat preservations with the heating rate of 4 DEG C/min
Then 1h is raised to 1500 DEG C of heat preservation 3h with the heating rate of 8 DEG C/min.
The forming of 5 nickel base superalloy part of embodiment
(1) material prepares;
1. the preparation of part material mixed slurry: taking d50The nickel base superalloy powder of=7um after being dried with dispersion
Agent ammonium polyacrylate, the mixing of phase solvent polyalcohol, are then added under the conditions of being protected from light by epoxy acrylate, polyurethanes epoxy
In photosensitive resin prepared by resin and dialkylacetophenones, diaryl iodonium salt, 4h is stirred with the revolving speed of 400rad/min, is formed
The slurry of uniform component, modest viscosity, then vacuum (being lower than -0.06MPa) stands 20h, cleared bubble therein.
2. backing material prepares: selection is by epoxy acrylate, polyurethanes epoxy resin and dialkylacetophenones, two virtues
D is added in the photosensitive resin of base salt compounded of iodine preparation50The PC powder of=50um as filler, under the conditions of being protected from light by stirring make its at
Divide uniformly, then vacuum standing, gas removal.
(2) supported design;
The position for adding support is needed to be supported design in part, the foundation for designing support is as follows: 1. working as suspended feature
Cantilevered out length need to add support when being more than 5mm;2. supporting may not exceed with the continuous length of feature contacts director, wide direction
5mm;3. fabrication hole is opened on part when support is completely enclosed within inside parts to be allowed to communicate with outside.
(3) optical soliton interaction;
Part material storehouse, the backing material dress of more material uv equipments will be packed into through the ready part material of step 1
Enter the fid feed bin of more material uv equipments, and import the synusia information of the gained model after the processing of step 2 supported design,
Optical wavelength range used in uv equipment is 200nm;Lift height used is 10um when forming.
(4) post-processing of blank
Forming workblank is taken out out of equipment, cleans blank surface with hairbrush, until exposing cured surface;Then by it
It immerses in the organic solvent that can dissolve uncured resin, the uncured resin being adhered on blank is removed by ultrasonic oscillation.
(5) degreasing sintered;
Degreasing process: under normal pressure, ar gas environment, being increased to 600 DEG C with the heating rate of 5 DEG C/min, keep the temperature after 3h with
Furnace is cooling.
Sintering process: under ar gas environment, gas pressure 100MPa is raised to 700 DEG C of heat preservations with the heating rate of 5 DEG C/min
Then 2h is raised to 1600 DEG C of heat preservation 0.5h with the heating rate of 5 DEG C/min.
The forming of 6 aluminium oxide ceramics part of embodiment
(1) material prepares;
1. the preparation of part material mixed slurry: taking suitable d50The aluminium oxide ceramics powder of=1um is after being dried and divides
Powder ammonium polyacrylate, the mixing of phase solvent polyalcohol, are then added under the conditions of being protected from light by cycloaliphatic epoxy resin and sulfosalt
The photosensitive resin of preparation, is then being added acrylic glycidol ether, stirs 3h with the revolving speed of 600rad/min, forming component is equal
One, the slurry of modest viscosity, then vacuum (being lower than -0.06MPa) stands 10h, cleared bubble therein.
2. backing material prepares: the photosensitive resin that selection is prepared by 1,6 hexanediol diacrylate and benzoin dimethylether
D is added50The PBT powder of=80um keeps its ingredient uniform under the conditions of being protected from light as filler by stirring, and then vacuum standing is removed
Gas.
(2) supported design;
The position for adding support is needed to be supported design in part, the foundation for designing support is as follows: 1. working as suspended feature
Cantilevered out length need to add support when being more than 5mm;2. supporting may not exceed with the continuous length of feature contacts director, wide direction
5mm;3. fabrication hole is opened on part when support is completely enclosed within inside parts to be allowed to communicate with outside.
(3) optical soliton interaction;
Part material storehouse, the backing material dress of more material uv equipments will be packed into through the ready part material of step 1
Enter the fid feed bin of more material uv equipments, and import the synusia information of the gained model after the processing of step 2 supported design,
Optical wavelength range used in uv equipment is 365nm;Lift height used is 25um when forming.
(4) post-processing of blank
Forming workblank is taken out out of equipment, cleans blank surface with hairbrush, until exposing cured surface;Then by it
It immerses in the organic solvent that can dissolve uncured resin, the uncured resin being adhered on blank is removed by ultrasonic oscillation.
(5) degreasing sintered;
Degreasing process: under normal pressure, air environment, 500 DEG C are increased to the heating rate of 2.5 DEG C/min, after keeping the temperature 1h
Furnace cooling.
Sintering process: under air environment, being raised to 800 DEG C of heat preservation 1h with the heating rate of 5 DEG C/min, then with 6 DEG C/
The heating rate of min is raised to 1500 DEG C of heat preservation 1h.