CN105665706A - Preparation method for metal part - Google Patents
Preparation method for metal part Download PDFInfo
- Publication number
- CN105665706A CN105665706A CN201610164588.3A CN201610164588A CN105665706A CN 105665706 A CN105665706 A CN 105665706A CN 201610164588 A CN201610164588 A CN 201610164588A CN 105665706 A CN105665706 A CN 105665706A
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- China
- Prior art keywords
- preparation
- metal material
- material product
- metal
- green body
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- Granted
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- 238000002360 preparation method Methods 0.000 title claims abstract description 39
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 28
- 239000002184 metal Substances 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 claims abstract description 28
- 239000011268 mixed slurry Substances 0.000 claims abstract description 25
- 239000000843 powder Substances 0.000 claims abstract description 24
- 238000007639 printing Methods 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 239000000853 adhesive Substances 0.000 claims description 20
- 230000001070 adhesive effect Effects 0.000 claims description 19
- 239000013530 defoamer Substances 0.000 claims description 19
- 239000007769 metal material Substances 0.000 claims description 18
- 229910001080 W alloy Inorganic materials 0.000 claims description 15
- 239000000428 dust Substances 0.000 claims description 14
- 229910001182 Mo alloy Inorganic materials 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 11
- 229910045601 alloy Inorganic materials 0.000 claims description 10
- 239000000956 alloy Substances 0.000 claims description 10
- 230000001186 cumulative effect Effects 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 10
- 238000012805 post-processing Methods 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 10
- 239000004925 Acrylic resin Substances 0.000 claims description 9
- 229920000178 Acrylic resin Polymers 0.000 claims description 9
- 229920000728 polyester Polymers 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 7
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 5
- 230000000996 additive effect Effects 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 4
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 4
- 239000000344 soap Substances 0.000 claims description 4
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 2
- 229920002545 silicone oil Polymers 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 16
- 238000005238 degreasing Methods 0.000 abstract description 8
- 239000011230 binding agent Substances 0.000 abstract description 3
- 239000002518 antifoaming agent Substances 0.000 abstract 1
- 238000001513 hot isostatic pressing Methods 0.000 abstract 1
- 239000011812 mixed powder Substances 0.000 description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 239000002002 slurry Substances 0.000 description 10
- 229910000601 superalloy Inorganic materials 0.000 description 10
- 238000003756 stirring Methods 0.000 description 8
- 238000007667 floating Methods 0.000 description 7
- 238000009766 low-temperature sintering Methods 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 229910000997 High-speed steel Inorganic materials 0.000 description 6
- GAYPVYLCOOFYAP-UHFFFAOYSA-N [Nb].[W] Chemical compound [Nb].[W] GAYPVYLCOOFYAP-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 5
- 239000010941 cobalt Substances 0.000 description 5
- 229910017052 cobalt Inorganic materials 0.000 description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000011733 molybdenum Substances 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- 229910052684 Cerium Inorganic materials 0.000 description 4
- 239000004205 dimethyl polysiloxane Substances 0.000 description 4
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- -1 unimach Substances 0.000 description 4
- 238000010146 3D printing Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- CPTCUNLUKFTXKF-UHFFFAOYSA-N [Ti].[Zr].[Mo] Chemical compound [Ti].[Zr].[Mo] CPTCUNLUKFTXKF-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229920000620 organic polymer Chemical class 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 229910004337 Ti-Ni Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910011209 Ti—Ni Inorganic materials 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- KHYBPSFKEHXSLX-UHFFFAOYSA-N iminotitanium Chemical compound [Ti]=N KHYBPSFKEHXSLX-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 108010052322 limitin Proteins 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002480 mineral oil Chemical class 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- MGRWKWACZDFZJT-UHFFFAOYSA-N molybdenum tungsten Chemical compound [Mo].[W] MGRWKWACZDFZJT-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F3/15—Hot isostatic pressing
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a preparation method for a metal part. The preparation method comprises the following steps that 1, metal powder is taken, added with an organic binder under the dark condition and uniformly mixed, then an antifoaming agent is added into the metal powder and uniformly mixed, and after bubbles fade away, surface impurities are removed, so that mixed slurry is obtained; 2, the mixed slurry is put into 3 D printing forming equipment to be printed layer by layer by utilizing controllable ultraviolet light beams, through the mode of surface exposure or spot scanning and according to a three-dimensional model of the part, and hence a metal part rough blank is prepared; 3, the metal part rough blank is subjected to low-temperature degreasing treatment, so that the organic binder in the rough blank evaporates and overflows; and 4, hot isostatic pressing treatment is conducted on the metal part rough blank, and therefore the compact metal part is obtained. According to the preparation method for the metal part, the principle of light curing rapid prototyping is adopted, the shape of the part is unrestrained, the process is simplified, the manufacturing cycle is shortened, and the product compactness is good.
Description
Technical field
The invention belongs to technical field of material, be specifically related to a kind of preparation method of metal material product.
Background technology
Casting, forging, weldering are the main processing and manufacturing sides of conventional metals goods in conjunction with the method for machining alwaysFormula, can solve most of conventional, easy rapidoprint product high accuracy manufacturing issue. But some haveThe metal material of property or specific use, as: high-speed steel, mould steel, unimach, nickel closeGold, high temperature alloy, tungsten alloy, molybdenum alloy etc., due to the property of material, cause tradition processing systemMaking method cannot or be difficult to solve manufacture/processing problems, and this patent provides one metal material product easilyMachining manufacture.
The thermal processing methods such as tradition casting, forging, weldering are in conjunction with the following shortcoming of method ubiquity of machining:
1) complex procedures, the cycle is long;
2) traditional hot-working manufacture generally needs machining after completing, and waste of material is obvious, the manufacturing cycleLong, heat processing technique is difficult to accurate control;
3) shaped structure can be realized limited, too parts with complex structures (as: hollow out, curve inner flow passage)Cannot make etc. structure;
4) conventional cast, forging and stamping need to be made particular manufacturing craft, and die cost is high, and the cycle is long.
Summary of the invention
The object of this invention is to provide a kind of preparation method of metal material product, solve tradition casting, forge,The processing modes such as weldering are not suitable for the problem of the metallic article production of small lot, customization and complicated shape.
The technical solution adopted in the present invention is that a kind of preparation method of metal material product, comprises followingStep:
Step 1, raw material preparation
Get metal dust, under lucifuge condition, add organic adhesive to mix it, and then addDefoamer mixes, and removes surface impurity after bubble disappears, and obtains mixed slurry.
Step 2, crude green body manufacture
Mixed slurry is packed in 3D printing formation unit, utilize controlled ultraviolet beam, the exposure of employing faceOr the mode of spot scan, successively print according to three-dimensional part model, make metallic article crude green body.
Step 3, post processing
Metallic article crude green body is carried out to low-temperature defatted processing, the organic adhesive evaporation in crude green body is overflowed;Carry out again hip treatment, obtain fine and close metallic article.
Feature of the present invention is also:
Preferably, organic adhesive is epoxy acrylic resin, unsaturated polyester resin, polyurethane propyleneAcid esters, polyester acrylate, polyester acrylic resin or amino acrylic resin.
Defoamer can be adopted as lower alcohol, organically-modified compound, organic polymer, organic siliconresin,Mineral wet goods. Preferred alcohol, n-butanol, tributyl phosphate, metallic soap, polyethers, polyacrylate,One of polydimethyl siloxane fluid or modified polyorganosiloxane.
Preferably, the volume ratio of metal dust and organic adhesive is 3:7～7:3, and defoamer accounts for mixed slurry0.05%～1.0% of cumulative volume.
Preferably, the layer thickness control of successively printing is at 20～80 μ m, and optical source wavelength is 200～400nm.
Preferably, when the exposure of employing face, the time for exposure is 0.1-3s; While adopting spot scan, spot diameter is0.1～0.15mm, hot spot translational speed 1-300mm/min.
Preferably, 200 DEG C～400 DEG C of the temperature of low-temperature defatted processing, time 2-4h.
Preferably, 800 DEG C～1600 DEG C of hip treatment temperature, pressure 100MPa～200MPa, timeBetween 2-5h.
Preferably, above-mentioned metal is titanium alloy, molybdenum alloy, nickel alloy, tungsten alloy, high temperature alloy or steel.
Preferably, in step 1, first in metal dust, add auxiliary additive, more mixed with organic binder bondClose; Auxiliary additive is rare earth element powder, carbon dust, iron powder or boron powder; Addition is metal powder opisthosomaLong-pending 0.5～1%.
The invention has the beneficial effects as follows, it is various unmanageable, complicated that the present invention utilizes 3D printing technique to manufactureMetal parts, the shape of part is unfettered, avoids must using in existing manufacturing technology the defect of mould,Simplify operation, shortened the manufacturing cycle, improved the manufacture efficiency of difficult-to-machine metal part, applicableIn the preparation of various metals goods.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in further detail, but the present invention does not limitIn these embodiments.
The invention provides a kind of preparation method of metal material product, the method can be for the preparation of multipleThe unmanageable metal material with property or specific use, is particularly useful for as high-speed steel, mouldThe metal systems such as tool steel, unimach, nickel alloy, high temperature alloy, tungsten alloy, molybdenum alloy, titanium alloyPart. Concrete preparation method is as follows:
Step 1, raw material preparation
Globular metallic powder is added to organic adhesive and fully mixes. The preferred propylene oxide of organic adhesiveAcid resin, unsaturated polyester resin, urethane acrylate, polyester acrylate, polyester acrylic treeFat or amino acrylic resin. The volume ratio of metal dust and organic adhesive is 3:7～7:3. For ensureing slurryExpect good mobility, mixed process and storing process should avoid seeing light, especially avoid UV-irradiation,Mixed process is avoided sneaking into too much impurity oxygen as far as possible, guarantees high temperature sintering quality.
In order to ensure the performance of metallic article, in metal dust, add a small amount of auxiliary additive again with organicBinding agent mixes, and can improve the inside alloy structure that high temperature hot pressing sintering/high temperature insostatic pressing (HIP) forms. AdditionFor 0.5～1% of metal dust volume. As add rare earth element powder, and can crystal grain thinning, purify crystal boundaryAnd change Grain boundary morphology, thereby improve the moulding of metal, the preferred La of rare earth powder, Y or Ce. As addedCarbon dust or iron powder can be suppressed at the redox reaction occurring in pulping process, or at high-temperature sintering processIn generation oxidation reaction, to ensure purity and the mechanical property of metal.
In order to reduce the bubble producing in whipping process, in above-mentioned mixed liquor, add again defoamer, slowly stirMix, to reduce bubble surface tension of liquid around, make little bubble coalescence become large bubble, finally makeBubble breaks, and plays the effect that suppresses or eliminate bubble in slurry. After slurry air entrapment disappears, goExcept pulp surface floating thing or residue, obtain even bubble-free mixed slurry. Defoamer can be selected rudimentaryAlcohol, organically-modified compound, mineral oil, organic polymer, organic siliconresin etc., preferred alcohol, justButanols, tributyl phosphate, metallic soap, polyethers, polyacrylate, polydimethyl siloxane fluid or modification gather siliconOne of oxygen alkane, its addition accounts for 0.05%～1.0% of mixed slurry cumulative volume.
Step 2, crude green body manufacture
Pack mixed slurry into 3D and print in Stereolithography equipment, utilize controlled ultraviolet beam, adoptThe mode of face exposure or spot scan, successively prints according to three-dimensional part model, makes metallic article crude green body.The layer thickness control of successively printing is at 20～80 μ m, and optical source wavelength is 200～400nm. If the exposure of employing face,Time for exposure is 0.1-3s; If employing spot scan, spot diameter is 0.1～0.15mm, hot spot translational speedFor 1-300mm/min.
Step 3, post processing
In order to reduce the impact of organic adhesive on metallic article mechanical property, metallic article crude green body is existedAt 200 DEG C～400 DEG C, carry out low-temperature defatted processing 2-4h, the organic adhesive evaporation in crude green body is overflowed;Then, in order to obtain high-compactness part, then 800 DEG C～1600 DEG C of temperature, pressure 100MPa～Under 200MPa condition, carry out hip treatment 2-5h, obtain fine and close metallic article.
The metallic article density that the present invention prepares is higher, and steady quality is high to raw-material utilization rate,And manufacturing speed is fast, the part that energy forming shape is complicated, meticulous especially especially, is applicable to small lot batch manufacture.
Embodiment 1
A preparation method for molybdenum and tungsten alloy product, specifically comprises the following steps:
(1) raw material preparation
The synthetic method of unsaturated polyester resin is to adopt maleic acid and fumaric acid 1:1 by unsaturated dibasic acidMix, add a certain amount of phthalic anhydride, succinic acid simultaneously, can improve the bullet of unsaturated polyester (UP)Property, reduce volume contraction, increase the plasticity of polyester. Dihydroxylic alcohols adopts ethylene glycol.
Concrete synthesis technique is: binary acid, ethylene glycol and appropriate polymerization inhibitor joined in reactor,Pass into nitrogen, stir and be warmed up to 160 DEG C of backflows, survey acid number to 200mgKOH/g left and right, start water outlet,Be warming up to 175～200 DEG C, in the time that acid number reaches setting value, stop reaction, be cooled to 80 DEG C of left and right, addEnter 20%～30% reactive diluent (styrene or esters of acrylic acid reactive diluent) and appropriate polymerization inhibitor goes outMaterial.
According to volume ratio get 99% molybdenum and tungsten alloy powder, 1% Ce powder is mixed to get mixed-powder, thenMixed-powder added under lucifuge condition to unsaturated polyester resin and fully mix mixed-powder and insatiable hungerWith mylar volume ratio be 1:1. Then add wherein defoamer tributyl phosphate, slowly stir, treatAfter slurry air entrapment disappears, remove pulp surface floating thing or residue, obtain even bubble-free mixingSlurry; Defoamer accounts for 0.5% of mixed slurry cumulative volume.
(2) crude green body manufacture
Pack mixed slurry into 3D and print in Stereolithography equipment, utilize controlled ultraviolet beam, adoptThe mode of face exposure, successively prints according to three-dimensional part model, and bed thickness is 80 μ m, and optical source wavelength is 400nm,Time for exposure is 0.1s, successively makes molybdenum and tungsten alloy part crude green body.
(3) post processing
Made molybdenum and tungsten alloy part crude green body is inserted in low-temperature sintering stove, carry out low-temperature defatted at 300 DEG CProcess 3h, make organic adhesive overflow, volatilize. Again the molybdenum and tungsten alloy part crude green body after degreasing is inserted to heatIn static pressure stove, under 1500 DEG C, 200MPa, carry out hip treatment 2h, obtain fine and close molybdenumTungsten alloy part.
Embodiment 2
A preparation method for niobium tungsten alloy product, specifically comprises the following steps:
(1) raw material preparation
Get 99% niobium tungsten alloy powder, 0.5% iron powder and 0.5% carbon dust according to volume ratio and be mixed to get mixed powderEnd, the particle diameter of iron powder and carbon dust is 0.2 micron, then mixed-powder is added to epoxy third under lucifuge conditionOlefin(e) acid resin also fully mixes, and mixed-powder and epoxy acrylic resin volume ratio are 1:1. Then whereinAdd defoamer metallic soap, slowly stir, after slurry air entrapment disappears, remove pulp surface floatingThing or residue, obtain even bubble-free mixed slurry; Defoamer accounts for 1% of mixed slurry cumulative volume.
(2) crude green body manufacture
Pack mixed slurry into 3D and print in Stereolithography equipment, utilize controlled ultraviolet beam, adoptThe mode of face exposure, successively prints according to three-dimensional part model, and bed thickness is 60 μ m, and optical source wavelength is 400nm,Time for exposure is 0.8s, successively makes niobium tungsten alloy part crude green body.
(3) post processing
Made niobium tungsten alloy part crude green body is inserted in low-temperature sintering stove, carry out low-temperature defatted at 200 DEG CProcess 2h, make organic adhesive overflow, volatilize. Again the niobium tungsten alloy part crude green body after degreasing is inserted to heatIn static pressure stove, under 1450 DEG C, 110MPa, carry out hip treatment 3h, obtain fine and close niobiumTungsten alloy part.
Embodiment 3
A preparation method for Ti-Ni alloy part, specifically comprises the following steps:
(1) raw material preparation
Get 99.5% peptide-nickel alloy powder and 0.5%Ce powder is mixed to get mixed-powder according to volume ratio, thenMixed-powder added under lucifuge condition to amino acrylic resin and fully mix, mixed-powder is with aminoAcrylic resin volume ratio is 7:3. Then add wherein defoamer polydimethyl siloxane fluid, slowly stir,After slurry air entrapment disappears, remove pulp surface floating thing or residue, obtain evenly bubble-free mixedClose slurry; Defoamer accounts for 1% of mixed slurry cumulative volume.
(2) crude green body manufacture
Pack mixed slurry into 3D and print in Stereolithography equipment, utilize controlled ultraviolet beam, adoptThe mode of spot scan, successively prints according to three-dimensional part model, and bed thickness is 50 μ m, and optical source wavelength is 200nm,Spot diameter is 0.1mm, and hot spot translational speed 150mm/min successively makes niobium tungsten alloy part crude green body.
(3) post processing
Made titanium-zirconium-molybdenum alloy part crude green body is inserted in low-temperature sintering stove, carry out low temperature at 400 DEG C and take offFat is processed 2h, makes organic adhesive overflow, volatilize. Again the titanium-zirconium-molybdenum alloy part crude green body after degreasing is putEnter in high temperature insostatic pressing (HIP) stove, under 1150 DEG C, 100MPa, carry out hip treatment 5h, obtain fine and closeTitanium-zirconium-molybdenum alloy part.
Embodiment 4
A preparation method for nickel base superalloy part, specifically comprises the following steps:
(1) raw material preparation
Get 99.2%FGH95 Ni-base Superalloy Powder and 0.8%Y powder is mixed to get mixed according to volume ratioClose powder, then mixed-powder added under lucifuge condition to unsaturated polyester resin and fully mix, mixPowder and unsaturated polyester resin volume ratio are 3:7. Then add wherein defoamer polydimethyl siloxane fluid,Slowly stir, after slurry air entrapment disappears, remove pulp surface floating thing or residue, obtain evenlyBubble-free mixed slurry; Defoamer accounts for 0.05% of mixed slurry cumulative volume.
(2) crude green body manufacture
Pack mixed slurry into 3D and print in Stereolithography equipment, utilize controlled ultraviolet beam, adoptThe mode of spot scan, successively prints according to three-dimensional part model, and bed thickness is 50 μ m, and optical source wavelength is 200nm,Spot diameter is 0.15mm, and hot spot translational speed 100mm/min, successively makes nickel base superalloy crude green body.
(3) post processing
Made nickel base superalloy crude green body is inserted in low-temperature sintering stove, carry out low-temperature defatted at 200 DEG CProcess 4h, make organic adhesive overflow, volatilize. Again the nickel base superalloy crude green body after degreasing is inserted to heatIn static pressure stove, under 1450 DEG C, 150MPa, carry out hip treatment 5h, obtain fine and close nickelBased high-temperature alloy product.
Embodiment 5
A preparation method for cobalt base superalloy part, specifically comprises the following steps:
(1) raw material preparation
Get 99.5%GH188 cobalt base superalloy powder and 0.5%La powder is mixed to get according to volume ratioMixed-powder, then mixed-powder added under lucifuge condition to polyester acrylate and fully mix, mixPowder and polyester acrylate volume ratio are 5:3. Then add wherein defoamer ethanol, slowly stir,After slurry air entrapment disappears, remove pulp surface floating thing or residue, obtain evenly bubble-free mixedClose slurry; Defoamer accounts for 0.05% of mixed slurry cumulative volume.
(2) crude green body manufacture
Pack mixed slurry into 3D and print in Stereolithography equipment, utilize controlled ultraviolet beam, adoptThe mode of face exposure, successively prints according to three-dimensional part model, and bed thickness is 20 μ m, and optical source wavelength is 300nm,Time for exposure is 3s, successively makes cobalt base superalloy crude green body.
(3) post processing
Made cobalt base superalloy crude green body is inserted in low-temperature sintering stove, carry out low-temperature defatted at 400 DEG CProcess 2h, make organic adhesive overflow, volatilize. Again the cobalt base superalloy crude green body after degreasing is inserted to heatIn static pressure stove, under 950 DEG C, 100MPa, carry out hip treatment 5h, obtain fine and close cobalt-basedHigh temperature alloy product.
Embodiment 6
A preparation method for high-speed steel product, specifically comprises the following steps:
(1) raw material preparation
Get 99.5%W18 primary steel powder and 0.5%La powder is mixed to get mixed-powder according to volume ratio,Mixed-powder added under lucifuge condition to urethane acrylate again and fully mix, mixed-powder is with poly-Ammonia ester acrylate volume ratio is 3:5. Then add wherein defoamer n-butanol, slowly stir, wait to starchAfter material air entrapment disappears, remove pulp surface floating thing or residue, obtain even bubble-free mixing slurryMaterial; Defoamer accounts for 1% of mixed slurry cumulative volume.
(2) crude green body manufacture
Pack mixed slurry into 3D and print in Stereolithography equipment, utilize controlled ultraviolet beam, adoptThe mode of spot scan, successively prints according to three-dimensional part model, and bed thickness is 50 μ m, and optical source wavelength is 300nm,Spot diameter is 0.12mm, and hot spot translational speed 300mm/min successively makes high-speed steel product crude green body.
(3) post processing
Made high-speed steel product crude green body is inserted in low-temperature sintering stove, carry out low-temperature defatted place at 400 DEG CReason 2h, makes organic adhesive overflow, volatilize. Again the high-speed steel product crude green body after degreasing is inserted heat etc. quietIn pressure stove, under 800 DEG C, 100MPa, carry out hip treatment 5h, obtain fine and close high speed steelPart.
Embodiment 7
A preparation method for superhigh intensity steelwork, specifically comprises the following steps:
(1) raw material preparation
Get 99.5%4Cr5MoSiV powdered steel and 0.5%Ce powder is mixed to get mixed powder according to volume ratioEnd, then mixed-powder added under lucifuge condition to urethane acrylate and fully mix mixed-powderWith urethane acrylate volume ratio be 7:3. Then add wherein defoamer polyethers, slowly stir, treatAfter slurry air entrapment disappears, remove pulp surface floating thing or residue, obtain even bubble-free mixingSlurry; Defoamer accounts for 0.5% of mixed slurry cumulative volume.
(2) crude green body manufacture
Pack mixed slurry into 3D and print in Stereolithography equipment, utilize controlled ultraviolet beam, adoptThe mode of spot scan, successively prints according to three-dimensional part model, and bed thickness is 50 μ m, and optical source wavelength is 200nm,Spot diameter is 0.1mm, and hot spot translational speed 1mm/min successively makes superhigh intensity steelwork crude green body.
(3) post processing
Made superhigh intensity steelwork crude green body is inserted in low-temperature sintering stove, carry out low temperature at 400 DEG C and take offFat is processed 2h, makes organic adhesive overflow, volatilize. Again the superhigh intensity steelwork crude green body after degreasing is putEnter in high temperature insostatic pressing (HIP) stove, under 1600 DEG C, 200MPa, carry out hip treatment 5h, obtain fine and closeSuperhigh intensity steelwork.
Compactness and the toughness of the various metallic articles that embodiment of the present invention 1-7 prepares are good, all can meetMarket product demand, also different, can meet the demand of difformity part.
The present invention adopts 3D printing technique to manufacture metallic article, and the shape of part is unfettered, avoids existingIn manufacturing technology, must use the defect of mould, simplify operation, shorten the manufacturing cycle, improve goldBelong to the manufacture efficiency of product.
The present invention is above describes just part embodiment, but the present invention is not limited to above-mentioned concrete realityExecute mode. Above-mentioned detailed description of the invention is schematically, is not restrictive. Every employing thisBright materials and methods, is not departing from the scope situation that aim of the present invention and claim protect instituteHave within concrete expansion all belongs to protection scope of the present invention.
Claims (10)
1. a preparation method for metal material product, is characterized in that, comprises the following steps:
Step 1, raw material preparation
Get metal dust, under lucifuge condition, add organic adhesive to mix it, and then addDefoamer mixes, and removes surface impurity after bubble disappears, and obtains mixed slurry;
Step 2, crude green body manufacture
Pack mixed slurry into 3D and print in Stereolithography equipment, utilize controlled ultraviolet beam, adoptThe mode of face exposure or spot scan, successively prints according to three-dimensional part model, makes metallic article crude green body;
Step 3, post processing
Metallic article crude green body is carried out to low-temperature defatted processing, the organic adhesive evaporation in crude green body is overflowed;Carry out again hip treatment, obtain fine and close metallic article.
2. the preparation method of metal material product according to claim 1, is characterized in that, described inOrganic adhesive is epoxy acrylic resin, unsaturated polyester resin, urethane acrylate, polyester thirdOlefin(e) acid ester, polyester acrylic resin or amino acrylic resin.
3. the preparation method of metal material product according to claim 1, is characterized in that, described inDefoamer is ethanol, n-butanol, tributyl phosphate, metallic soap, polyethers, polyacrylate, poly-diformazanBase silicone oil or modified polyorganosiloxane.
4. the preparation method of metal material product according to claim 1, is characterized in that, described inThe volume ratio of metal dust and described organic adhesive is 3:7～7:3, and described defoamer accounts for described mixed slurry0.05%～1.0% of cumulative volume.
5. the preparation method of metal material product according to claim 1, is characterized in that, described inThe layer thickness control of successively printing is at 20～80 μ m, and optical source wavelength is 200～400nm.
6. the preparation method of metal material product according to claim 1, is characterized in that, described inWhen the exposure of printing type employing face, the time for exposure is 0.1-3s; When described printing type adopts spot scan, lightSpot diameter is 0.1～0.15mm, hot spot translational speed 1-300mm/min.
7. the preparation method of metal material product according to claim 1, is characterized in that, described in200 DEG C～400 DEG C of the temperature of low-temperature defatted processing, time 2-4h.
8. the preparation method of metal material product according to claim 1, is characterized in that, described in800 DEG C～1600 DEG C of hip treatment temperature, pressure 100MPa～200MPa, time 2-5h.
9. according to the preparation method of the metal material product described in any one in claim 1-8, its featureBe, described metal is titanium alloy, molybdenum alloy, nickel alloy, tungsten alloy, high temperature alloy or steel.
10. according to the preparation method of the metal material product described in any one in claim 1-8, its featureBe, in step 1, first in described metal dust, add auxiliary additive, then with described organic adhesiveAgent mixes; Auxiliary additive is rare earth element powder, carbon dust, iron powder or boron powder, and addition is metal powderOpisthosoma long-pending 0.5～1%.
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| CN106435236A (en) * | 2016-11-08 | 2017-02-22 | 西安铂力特激光成形技术有限公司 | Preparation method for nickel-based high-temperature alloy workpiece |
| CN106541129A (en) * | 2016-11-08 | 2017-03-29 | 西安铂力特激光成形技术有限公司 | A kind of preparation method of particles reiforced metal-base composition |
| CN106563799A (en) * | 2016-11-08 | 2017-04-19 | 西安铂力特激光成形技术有限公司 | Metal material for photocuring and preparation method of metal material |
| CN106583710A (en) * | 2016-12-29 | 2017-04-26 | 西安铂力特激光成形技术有限公司 | Magnesium and magnesium alloy complex component shaping method based on photocuring technology |
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| CN113477923A (en) * | 2021-06-29 | 2021-10-08 | 吉林大学重庆研究院 | Preparation and sintering method of titanium alloy slurry for 3D printing |
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| CN115815618A (en) * | 2023-02-13 | 2023-03-21 | 中南大学 | Aluminum alloy additive manufacturing method |
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| CN106435236A (en) * | 2016-11-08 | 2017-02-22 | 西安铂力特激光成形技术有限公司 | Preparation method for nickel-based high-temperature alloy workpiece |
| CN106541129A (en) * | 2016-11-08 | 2017-03-29 | 西安铂力特激光成形技术有限公司 | A kind of preparation method of particles reiforced metal-base composition |
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| CN106583710A (en) * | 2016-12-29 | 2017-04-26 | 西安铂力特激光成形技术有限公司 | Magnesium and magnesium alloy complex component shaping method based on photocuring technology |
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| CN107214949A (en) * | 2017-06-21 | 2017-09-29 | 刘彦君 | A kind of photocuring metal paste and preparation method thereof |
| CN107377970A (en) * | 2017-07-11 | 2017-11-24 | 宁波匠心快速成型技术有限公司 | A kind of inexpensive metal 3D printing method |
| CN109676123A (en) * | 2018-12-20 | 2019-04-26 | 西安铂力特增材技术股份有限公司 | A kind of scan method of optical soliton interaction metal, alloy and ceramic part |
| CN109622969A (en) * | 2019-02-26 | 2019-04-16 | 北京科技大学 | A kind of photocuring metallic print method |
| CN113453824A (en) * | 2019-03-18 | 2021-09-28 | 惠普发展公司，有限责任合伙企业 | Controlling deformation of green body object |
| CN113453824B (en) * | 2019-03-18 | 2023-10-24 | 惠普发展公司，有限责任合伙企业 | Controlling deformation of a green body object |
| CN111906308A (en) * | 2020-08-10 | 2020-11-10 | 广东中发摩丹科技有限公司 | Powder plasticizing additive manufacturing sintering forming method for beryllium-aluminum alloy aerospace component |
| CN112222398A (en) * | 2020-08-21 | 2021-01-15 | 华中科技大学 | 4D printing method for DLP (digital light processing) formed shape memory alloy part |
| CN113477923A (en) * | 2021-06-29 | 2021-10-08 | 吉林大学重庆研究院 | Preparation and sintering method of titanium alloy slurry for 3D printing |
| CN113477923B (en) * | 2021-06-29 | 2022-09-27 | 吉林大学重庆研究院 | Preparation and sintering method of titanium alloy slurry for 3D printing |
| CN113480823A (en) * | 2021-07-16 | 2021-10-08 | 东莞市飞胜生物科技有限公司 | High-performance anti-deformation 3D printing material and preparation method thereof |
| CN115815618A (en) * | 2023-02-13 | 2023-03-21 | 中南大学 | Aluminum alloy additive manufacturing method |
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Address after: 710075 A0508, pioneer Plaza, 48 tech Road, Xi'an new high tech Zone, Shaanxi Applicant after: Xi'an platinum power technology Limited by Share Ltd Address before: 710075 A0508, pioneer Plaza, 48 tech Road, Xi'an new high tech Zone, Shaanxi Applicant before: Xi'an Bright Laser Technology Ltd. |
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Address after: No.66, Wenchang East Road, Chengdong high tech Zone, Taixing City, Suzhou City, Jiangsu Province Patentee after: Platinum (Jiangsu) additive manufacturing Co., Ltd Address before: 710075 A0508, 48, hi tech Zone, hi tech Zone, Shaanxi, Xi'an Patentee before: XI'AN BRIGHT LASER TECHNOLOGIES Co.,Ltd. |
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Effective date of registration: 20200527 Address after: No.66, Wenchang East Road, Chengdong high tech Zone, Taixing City, Suzhou City, Jiangsu Province Patentee after: Platinum (Jiangsu) additive manufacturing Co., Ltd Address before: A0508, Chuangye square, No. 48, Keji Road, high tech Zone, Xi'an City, Shaanxi Province Patentee before: XI'AN BRIGHT LASER TECHNOLOGIES Co.,Ltd. |