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US20110033334A1 - Process for producing components composed of titanium or titanium alloy by means of mim technology - Google Patents

Process for producing components composed of titanium or titanium alloy by means of mim technology Download PDF

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Publication number
US20110033334A1
US20110033334A1 US12/849,360 US84936010A US2011033334A1 US 20110033334 A1 US20110033334 A1 US 20110033334A1 US 84936010 A US84936010 A US 84936010A US 2011033334 A1 US2011033334 A1 US 2011033334A1
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US
United States
Prior art keywords
titanium
powder
process according
titanium alloy
boron
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/849,360
Inventor
Orley M. Ferri
Thomas Ebel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GKSS Forshungszentrum Geesthacht GmbH
Ethicon Endo Surgery LLC
Original Assignee
GKSS Forshungszentrum Geesthacht GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Assigned to GKSS-FORSCHUNGSZENTRUM GEESTHACHT GMBH reassignment GKSS-FORSCHUNGSZENTRUM GEESTHACHT GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FERRI, ORLEY M., EBEL, THOMAS
Publication of US20110033334A1 publication Critical patent/US20110033334A1/en
Assigned to ETHICON ENDO-SURGERY, LLC reassignment ETHICON ENDO-SURGERY, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ETHICON ENDO-SURGERY INC.
Abandoned legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C14/00—Alloys based on titanium
    • 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
    • B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
    • B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/045—Alloys based on refractory metals
    • C22C1/0458—Alloys based on titanium, zirconium or hafnium
    • 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
    • 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
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
    • C22C32/0073—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only borides

Definitions

  • the present invention relates to a process for producing a component composed of titanium or titanium alloy by means of MIM technology.
  • MIM stands for “metal injection moulding” and is a highly efficient manufacturing process for the production of small, complex and precise metal parts.
  • the MIM technology belongs to the class of powder-metallurgical processes in which not a solid metal body but a fine powder is used as starting material for the component to be produced. This powder is mixed with a polymer-containing binder and kneaded to form the “feedstock”.
  • the feedstock is pressed under pressure into the injection mould (tool) on an injection moulding machine.
  • the green part formed already has the final geometry but, for obtaining a pure metal part, it has to be freed of the binder again in subsequent steps.
  • the binder is removed in a chemical and/or thermal process and the component is “fired” in a sintering step. At present, it is used predominantly for the production of stainless steel components.
  • Titanium and titanium alloys offer an excellent ratio of strength to weight. These metals are absolutely nonmagnetic, corrosion-resistant and resistant to sea water. In addition, they are biocompatible and are very suitable for implants. This combination of properties leads to the use of titanium in aircraft and spaceflight, marine engineering and medical technology. However, titanium and titanium alloys are very difficult to process.
  • Titanium alloy powders are processed commercially by means of MIM in only a few scattered cases and are restricted to applications which involve only a low change in stress on the component, since the long-term strength is significantly lower than in the case of components produced by cutting machining of a TiAl 6 V 4 semifinished part. It is presumed that the existence of pores in the MIM components and a coarser microstructure are responsible for the lower long-term strength of the components produced from titanium alloy powder by means of MIM technology.
  • the object is achieved by a process in which a homogeneous mixture of boron powder having a particle size of less than 10 ⁇ m, preferably less than 5 ⁇ m, more preferably less than 2 ⁇ m, and titanium powder and/or titanium alloy powder is produced and binder is mixed with the homogeneous mixture of boron and titanium powder and/or titanium alloy powder and, optionally, an additive in a kneader, the mixture is moulded by injection moulding to produce a green part, the moulded composition is subjected to chemical and/or thermal removal of binder to produce a brown part and the composition from which the binder has been removed is sintered at a temperature in the range from 1000° C. to 1600° C.
  • the amount of boron powder is preferably selected so that from 0.05% by weight to 1.5% by weight, more preferably from 0.1% by weight to 1.0% by weight, of boron is present in the component, based on the total weight of the latter after sintering.
  • the sintering temperature is preferably in the range from 1000° C. to 1600° C., more preferably from 1200° C. to 1500° C., even more preferably from 1300° C. to 1450° C. Particularly at a temperature in the range from 1300° C. to 1450° C., a residual porosity of the component of less than 3%, based on the component volume, is achieved.
  • the residual porosity can be determined by measuring the density relative to the density of the solid material or by geometric analysis of polished sections examined under a microscope.
  • the uptake of oxygen during the process should preferably be limited to such a degree that the sintered components have an oxygen content of less than 0.3% by weight, based on the total weight of the component, since otherwise the ductility of the components is adversely affected.
  • the mixing of boron powder and titanium powder and/or titanium alloy powder preferably takes place under a protective gas atmosphere.
  • the mixing of the binder with the homogeneous mixture of boron and titanium powder and/or titanium alloy powder and, optionally, an additive preferably also takes place under a protective gas atmosphere.
  • protective gas preference is given to using argon or helium, more preferably argon.
  • Sintering is preferably carried out in a high vacuum.
  • a getter material such as titanium can be present. The latter measures serve to minimize the oxygen uptake by the brown parts during sintering.
  • the oxygen content of the sintered component is preferably determined by melt extraction analysis.
  • titanium powder and/or titanium alloy powder typically has a particle size of less than 45 ⁇ m.
  • titanium alloy powder it is possible to use, for example, TiAl 6 V 4 which has preferably been produced by inert gas atomization.
  • the binder is preferably selected from among thermoplastic or thermoset polymers, thermogelling substances, waxes and surface-active substances and mixtures thereof. Preference is given to using polyamides, polyoxymethylene, polycarbonate, styrene-acrylonitrile copolymers, polyimides, natural waxes and/or oils, thermoset resins, cyanates, polypropylenes, polyacetates, polyethylenes, ethylene-vinyl acetate copolymers, polyvinyl alcohols, polyvinyl chlorides, polystyrene, polymethyl methacrylates, anilines, mineral oils, agar, glycerol, polyvinyl butyrals, polybutyl methacrylates, cellulose, oil acids, phthalates, paraffin waxes, carnauba wax, ammonium polyacrylates, diglyceride stearates and diglyceride oleates, glyceryl monostearate, isopropyl titanates, lithium stearate
  • the binder particularly preferably contains polyethylene, stearic acid, paraffin and carnauba wax.
  • the binder most preferably contains a polyethylene copolymer such as polyethylene-vinyl acetate copolymer (PEVA) or polyethylene-butyl methylacrylate copolymer (PBMA) and also paraffin.
  • PEVA polyethylene-vinyl acetate copolymer
  • PBMA polyethylene-butyl methylacrylate copolymer
  • the green part is, in step (d), subjected to chemical binder removal in a hydrocarbon, preferably hexane and/or heptane, and preferably subsequently subjected to thermal binder removal at a temperature of preferably from 300° C. to 600° C., more preferably from 400° C. to 500° C.
  • the chemical binder removal usually takes place at temperatures in the range from ambient temperature to 60° C., preferably from 40° C. to 50° C.
  • the particle sizes are, unless indicated otherwise, maximum particle sizes.
  • the titanium alloy powder used was obtained by sieving.
  • Gas-atomized spherical powder having the composition corresponding to ASTM grade 23 (TiAl 6 V 4 ELI) having a particle size of less than 45 ⁇ m is used as starting material. This is homogeneously mixed under an argon atmosphere with an amorphous boron powder having a particle size of less than 2 ⁇ m. The powder mixture is then kneaded still under an argon atmosphere with the binder constituents PEVA and paraffin in a Z blade mixer at a temperature of 120° C. for 2 hours to form the feedstock and pelletized.
  • the feedstock is processed on an Arburg 320S injection moulding machine at a melt temperature in the range from 100° C. to 160° C. to produce test specimens (here bars for tensile tests).
  • the green parts are subjected to chemical binder removal in heptane at 40° C. for 20 hours, which dissolves out the wax component of the binder system.
  • the brown parts are placed in a high vacuum furnace with ceramic-free lining and tungsten heater.
  • the residual binder is firstly thermally decomposed under an argon atmosphere in the furnace by means of a suitable temperature programme and drawn off by means of a vacuum pump before the sintering of the metal powder is carried out directly afterwards.
  • Sintering preferably takes place under reduced pressure at a pressure of 10 ⁇ 4 mbar.
  • the sintering temperature is typically 1400° C., and the sintering time is 2 hours.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)

Abstract

The present invention relates to a process for producing a component composed of titanium or titanium alloy by means of MIM technology. In this process, a homogeneous mixture of boron powder having a particle size of less than 10 μm, preferably less than 5 μm, more preferably less than 2 μm, and titanium powder and/or titanium alloy powder is produced, and binder is mixed with the homogeneous mixture of boron and titanium powder and/or titanium alloy powder and also, if appropriate, an additive in a kneader, the mixture is moulded by injection moulding to produce a green part, the moulded composition is subjected to chemical and/or thermal removal of binder to produce a brown part and the composition from which the binder has been removed is sintered at a temperature in the range from 1000° C. to 1600° C.

Description

    FIELD OF THE INVENTION
  • The present invention relates to a process for producing a component composed of titanium or titanium alloy by means of MIM technology. MIM stands for “metal injection moulding” and is a highly efficient manufacturing process for the production of small, complex and precise metal parts. The MIM technology belongs to the class of powder-metallurgical processes in which not a solid metal body but a fine powder is used as starting material for the component to be produced. This powder is mixed with a polymer-containing binder and kneaded to form the “feedstock”.
    • BACKGROUND
  • The feedstock is pressed under pressure into the injection mould (tool) on an injection moulding machine. The green part formed already has the final geometry but, for obtaining a pure metal part, it has to be freed of the binder again in subsequent steps. For this purpose, the binder is removed in a chemical and/or thermal process and the component is “fired” in a sintering step. At present, it is used predominantly for the production of stainless steel components.
  • Titanium and titanium alloys offer an excellent ratio of strength to weight. These metals are absolutely nonmagnetic, corrosion-resistant and resistant to sea water. In addition, they are biocompatible and are very suitable for implants. This combination of properties leads to the use of titanium in aircraft and spaceflight, marine engineering and medical technology. However, titanium and titanium alloys are very difficult to process.
  • The use of the MIM technology for producing titanium components is relatively new and restricted essentially to pure titanium. Titanium alloy powders are processed commercially by means of MIM in only a few scattered cases and are restricted to applications which involve only a low change in stress on the component, since the long-term strength is significantly lower than in the case of components produced by cutting machining of a TiAl6V4 semifinished part. It is presumed that the existence of pores in the MIM components and a coarser microstructure are responsible for the lower long-term strength of the components produced from titanium alloy powder by means of MIM technology.
    • SUMMARY
  • It is an object of the present invention to provide a process for producing components which can be subjected to a high change in stress from titanium or titanium alloy powders by means of MIM.
    • DETAILED DESCRIPTION
  • The object is achieved by a process in which a homogeneous mixture of boron powder having a particle size of less than 10 μm, preferably less than 5 μm, more preferably less than 2 μm, and titanium powder and/or titanium alloy powder is produced and binder is mixed with the homogeneous mixture of boron and titanium powder and/or titanium alloy powder and, optionally, an additive in a kneader, the mixture is moulded by injection moulding to produce a green part, the moulded composition is subjected to chemical and/or thermal removal of binder to produce a brown part and the composition from which the binder has been removed is sintered at a temperature in the range from 1000° C. to 1600° C.
  • The amount of boron powder is preferably selected so that from 0.05% by weight to 1.5% by weight, more preferably from 0.1% by weight to 1.0% by weight, of boron is present in the component, based on the total weight of the latter after sintering. The sintering temperature is preferably in the range from 1000° C. to 1600° C., more preferably from 1200° C. to 1500° C., even more preferably from 1300° C. to 1450° C. Particularly at a temperature in the range from 1300° C. to 1450° C., a residual porosity of the component of less than 3%, based on the component volume, is achieved.
  • The residual porosity can be determined by measuring the density relative to the density of the solid material or by geometric analysis of polished sections examined under a microscope.
  • The uptake of oxygen during the process should preferably be limited to such a degree that the sintered components have an oxygen content of less than 0.3% by weight, based on the total weight of the component, since otherwise the ductility of the components is adversely affected. For this reason, the mixing of boron powder and titanium powder and/or titanium alloy powder preferably takes place under a protective gas atmosphere. The mixing of the binder with the homogeneous mixture of boron and titanium powder and/or titanium alloy powder and, optionally, an additive preferably also takes place under a protective gas atmosphere. As protective gas, preference is given to using argon or helium, more preferably argon. Sintering is preferably carried out in a high vacuum. In addition, a getter material such as titanium can be present. The latter measures serve to minimize the oxygen uptake by the brown parts during sintering.
  • The oxygen content of the sintered component is preferably determined by melt extraction analysis.
  • Preference is given to using a starting powder which is particularly low in oxygen and a binder which is likewise low in oxygen. The titanium powder and/or titanium alloy powder typically has a particle size of less than 45 μm. As titanium alloy powder, it is possible to use, for example, TiAl6V4 which has preferably been produced by inert gas atomization.
  • The binder is preferably selected from among thermoplastic or thermoset polymers, thermogelling substances, waxes and surface-active substances and mixtures thereof. Preference is given to using polyamides, polyoxymethylene, polycarbonate, styrene-acrylonitrile copolymers, polyimides, natural waxes and/or oils, thermoset resins, cyanates, polypropylenes, polyacetates, polyethylenes, ethylene-vinyl acetate copolymers, polyvinyl alcohols, polyvinyl chlorides, polystyrene, polymethyl methacrylates, anilines, mineral oils, agar, glycerol, polyvinyl butyrals, polybutyl methacrylates, cellulose, oil acids, phthalates, paraffin waxes, carnauba wax, ammonium polyacrylates, diglyceride stearates and diglyceride oleates, glyceryl monostearate, isopropyl titanates, lithium stearate, monoglycerides, formaldehyde, acid octyl phosphates, olefin sulphonates, phosphate esters or stearic acid or mixtures thereof as binder. The binder particularly preferably contains polyethylene, stearic acid, paraffin and carnauba wax. The binder most preferably contains a polyethylene copolymer such as polyethylene-vinyl acetate copolymer (PEVA) or polyethylene-butyl methylacrylate copolymer (PBMA) and also paraffin.
  • The green part is, in step (d), subjected to chemical binder removal in a hydrocarbon, preferably hexane and/or heptane, and preferably subsequently subjected to thermal binder removal at a temperature of preferably from 300° C. to 600° C., more preferably from 400° C. to 500° C. The chemical binder removal usually takes place at temperatures in the range from ambient temperature to 60° C., preferably from 40° C. to 50° C.
  • The invention will now be illustrated by the following, nonlimiting example. The particle sizes are, unless indicated otherwise, maximum particle sizes. The titanium alloy powder used was obtained by sieving.
    • EXAMPLE
  • Gas-atomized spherical powder having the composition corresponding to ASTM grade 23 (TiAl6V4 ELI) having a particle size of less than 45 μm is used as starting material. This is homogeneously mixed under an argon atmosphere with an amorphous boron powder having a particle size of less than 2 μm. The powder mixture is then kneaded still under an argon atmosphere with the binder constituents PEVA and paraffin in a Z blade mixer at a temperature of 120° C. for 2 hours to form the feedstock and pelletized.
  • The feedstock is processed on an Arburg 320S injection moulding machine at a melt temperature in the range from 100° C. to 160° C. to produce test specimens (here bars for tensile tests). The green parts are subjected to chemical binder removal in heptane at 40° C. for 20 hours, which dissolves out the wax component of the binder system. The brown parts are placed in a high vacuum furnace with ceramic-free lining and tungsten heater.
  • The residual binder is firstly thermally decomposed under an argon atmosphere in the furnace by means of a suitable temperature programme and drawn off by means of a vacuum pump before the sintering of the metal powder is carried out directly afterwards. Sintering preferably takes place under reduced pressure at a pressure of 10−4 mbar. The sintering temperature is typically 1400° C., and the sintering time is 2 hours.
  • The mechanical properties measured on the sintered parts are shown by way of example for the use of TiAl6V4 ELI powder in the following table, once without and once with addition of 0.5% by weight of boron. Comparison is made with the standard for the corresponding material as mechanical alloy:
  • Yield Tensile Long-term strength
    Alloy point [MPa] strength [MPa] Elongation [%] [MPa]
    MIM-Ti-6Al-4V 757 861 14 450
    (comparison)
    MIM-Ti-6Al-4V- 790 902 11 640
    0.5B (invention)
    Ti-6Al-4V Grade 23 759 828 min. 10  500*
    (comparison)
    *Alpha-lamellae, width 12 μm, heat-treated state

Claims (20)

1. Process for producing a component composed of titanium or titanium alloy, comprising:
(a) mixing a boron powder having a particle size of less than 10 μm and titanium powder and/or titanium alloy powder to produce a homogeneous boron powder with titanium powder and/or titanium alloy powder,
(b) mixing a binder with the homogeneous mixture of boron and titanium powder and/or titanium alloy powder and, optionally, an additive, in a kneader,
(c) molding the mixture of (b) by injection molding to produce a green part,
(d) subjecting the green part to chemical and/or thermal removal of the binder to produce a brown part, and
(e) sintering the brown part at a temperature in the range from 1000° C. to 1600° C.
2. Process according to claim 1, wherein the amount of boron powder is selected so that from 0.05% by weight to 1.5% by weight of boron is present in the component, based on the weight of the component after sintering.
3. Process according to claim 2, wherein the boron content is in the range from 0.1% by weight to 1.0% by weight.
4. Process according to claim 1, wherein the sintering temperature is in the range from 1300° C. to 1450° C.
5. Process according to claim 1, wherein the mixing of boron powder and titanium powder and/or titanium alloy powder takes place under a protective gas atmosphere.
6. Process according to claim 1, wherein the mixing of binder with the homogeneous mixture of boron powder and titanium powder and/or titanium alloy powder takes place under a protective gas atmosphere.
7. Process according to claim 5, wherein the protective gas is argon or helium.
8. Process according to claim 1, wherein sintering takes place in a vacuum.
9. Process according to claim 1, wherein the sintered components have an oxygen content of less than 0.3% by weight, determined by melt extraction analysis.
10. Process according to claim 1, wherein the titanium powder and/or titanium alloy powder has a particle size of less than 45 μm.
11. Process according to claim 1, wherein TiAl6V4 is used as titanium alloy powder.
12. Process according to claim 11, wherein gas-atomized TiAl6V4 is used.
13. Process according to claim 1, wherein the binder is selected from the group consisting of thermoplastic or thermoset polymers, thermogelling substances, waxes and surface-active substances and mixtures thereof.
14. Process according to claim wherein the green part is, in step (d), subjected to chemical binder removal in a hydrocarbon, to produce a brown part.
15. A component composed of titanium or titanium alloy, produced by the process of claim 1.
16. Process according to claim 6, wherein the protective gas is argon or helium.
17. Process according to claim 14, wherein the hydrocarbon is hexane or heptanes.
18. A component composed of titanium or titanium allow produced by the process of claim 2.
19. The component of claim 15, wherein the component is composed of a titanium alloy.
20. The component of claim 19, wherein the titanium alloy is TiAl6V4.
US12/849,360 2009-08-04 2010-08-03 Process for producing components composed of titanium or titanium alloy by means of mim technology Abandoned US20110033334A1 (en)

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EP09167195A EP2292806B1 (en) 2009-08-04 2009-08-04 Method for producing components from titanium or titanium alloy using MIM technology
EP09167195.8 2009-08-04

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WO2015102732A3 (en) * 2013-10-25 2015-07-30 Golden Intellectual Property, Llc Amorphous alloy containing feedstock for powder injection molding
CN105880583A (en) * 2016-04-18 2016-08-24 四川大学 Composite wire for manufacturing titanium product through 3D printing and preparation method of composite wire
CN107868878A (en) * 2017-12-28 2018-04-03 宁波俐辰新能源有限公司 A kind of essential abrasion-resistant titanium alloy and its manufacture method
CN107876575A (en) * 2016-09-30 2018-04-06 珠海天威飞马打印耗材有限公司 Three-dimensionally shaped silk, manufacture method and forming method
WO2019018458A1 (en) * 2017-07-18 2019-01-24 Carpenter Technology Corporation Custom titanium alloy, ti-64, 23+
CN110421174A (en) * 2019-07-30 2019-11-08 中山市金瓷科技有限公司 A kind of iron-based feeding formula of metal powder injection molded stainless steel-and production method
CN111390185A (en) * 2020-04-14 2020-07-10 东莞市金材五金有限公司 Production method of titanium alloy part
US10851437B2 (en) 2016-05-18 2020-12-01 Carpenter Technology Corporation Custom titanium alloy for 3-D printing and method of making same
CN113751708A (en) * 2021-09-15 2021-12-07 西安航空职业技术学院 Special material for titanium alloy powder injection molding and preparation method thereof
CN114472879A (en) * 2021-12-20 2022-05-13 中南大学 Binder for injection molding of pure titanium powder and preparation method and application thereof
CN114951662A (en) * 2022-06-14 2022-08-30 浙江大学 Method for preparing high-strength porous titanium alloy material

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EP3524280B1 (en) 2018-02-12 2020-01-08 Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung GmbH Method for producing a metallic implant
CN113333752B (en) * 2020-03-03 2022-10-25 湖南省民鑫新材料股份有限公司 Feeding product formed by titanium and titanium alloy injection and preparation method thereof

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015102732A3 (en) * 2013-10-25 2015-07-30 Golden Intellectual Property, Llc Amorphous alloy containing feedstock for powder injection molding
CN105880583A (en) * 2016-04-18 2016-08-24 四川大学 Composite wire for manufacturing titanium product through 3D printing and preparation method of composite wire
US10851437B2 (en) 2016-05-18 2020-12-01 Carpenter Technology Corporation Custom titanium alloy for 3-D printing and method of making same
CN107876575A (en) * 2016-09-30 2018-04-06 珠海天威飞马打印耗材有限公司 Three-dimensionally shaped silk, manufacture method and forming method
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