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WO2009029993A1 - Procédé de moulage par injection de métal - Google Patents

Procédé de moulage par injection de métal Download PDF

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Publication number
WO2009029993A1
WO2009029993A1 PCT/AU2008/001321 AU2008001321W WO2009029993A1 WO 2009029993 A1 WO2009029993 A1 WO 2009029993A1 AU 2008001321 W AU2008001321 W AU 2008001321W WO 2009029993 A1 WO2009029993 A1 WO 2009029993A1
Authority
WO
WIPO (PCT)
Prior art keywords
mixture
sintering
powder
binder
aluminium
Prior art date
Application number
PCT/AU2008/001321
Other languages
English (en)
Inventor
Zhenyun Liu
Graham Barry Schaffer
Original Assignee
The University Of Queensland
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
Priority claimed from AU2007904878A external-priority patent/AU2007904878A0/en
Application filed by The University Of Queensland filed Critical The University Of Queensland
Publication of WO2009029993A1 publication Critical patent/WO2009029993A1/fr

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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
    • B22F3/22—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
    • 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
    • B22F3/1003—Use of special medium during sintering, e.g. sintering aid
    • B22F3/1007—Atmosphere
    • 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
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
    • 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
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • 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
    • B22F3/1003—Use of special medium during sintering, e.g. sintering aid
    • B22F2003/1014—Getter
    • 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

Definitions

  • the present invention relates to a metal injection moulding method.
  • Injection moulding is a widely used technique in the field of commercial plastics processing. Many variations of injection moulding have been developed and one of the rapidly expanding fields is multi-material injection moulding. There are three major types of multi-material injection moulding used in plastics injection moulding, namely multi-component moulding, multi-shot moulding and over moulding. Multi-component moulding can be further subdivided into co-injection moulding
  • Co-injection moulding involves making sequential injections into the same mould with one material as the core and one as the skin.
  • Interval injection moulding involves the simultaneous injection of different materials through different gates giving limited mixing.
  • Multi-shot moulding describes any process where distinct material shots are applied to produce the final component. This includes transfer moulding, core back moulding, and rotating tool moulding.
  • Metal injection moulding is a hybrid of powder metallurgy and plastic injection moulding technologies. The process has inherited the capability of mass production and geometrical complexity from plastic injection moulding and material flexibility from powder metallurgy technology.
  • Metal injection moulding involves the mixing of powder metal with a binder to form a feedstock. This mixture is then injection moulded using injection moulding equipment that is similar to that used in the plastics industry. This forms a "green body". The green body has sufficient rigidity and strength to enable handling. The green body is then further treated to remove the binder and to sinter the metal powder particles to form the final article.
  • the binder typically comprises one or more thermoplastic compounds, plasticisers and other organic material. Ideally, the binder is molten or liquid at the injection moulding temperature but solidifies in the mould when the green body is cooled.
  • the feedstock may be converted into solid pellets, for example by granulation. These pellets may be stored and fed into the injection moulding machine at a later time.
  • Typical injection moulding equipment includes a heated screw or extruder having a nozzle through which the mixture is extruded into the die cavity.
  • the extruder is heated to ensure that the binder is in liquid form and the nozzle temperature is typically carefully controlled to ensure constant conditions.
  • the temperature of the die is also controlled so that the temperature is low enough to ensure that the green body is rigid when it is removed from the die.
  • the green body will be larger than the final article.
  • Further processing of the green body involves removing the binder and sintering.
  • the binder may be completely removed before sintering.
  • the binder may be partly removed before the sintering step, with complete removal of the binder being achieved during the sintering step.
  • Removal of the binder may take place by using a solvent to dissolve the binder or by heating the green body to cause the binder to melt, decompose and/or evaporate. A combination of solvent removal and thermal removal may also be used.
  • the sintering step involves heating the body to cause the separate metal particles to metallurgically bond together.
  • Sintering in the production of metal injection moulded parts is generally similar to sintering used in the production of traditional powder metal parts.
  • Non-oxidising atmospheres are typically used during the sintering step in order to avoid oxidation of the metal.
  • the very porous body remaining after removal of the binder densities and shrinks.
  • the sintering temperature and temperature distribution will typically be closely controlled in order to retain the shape of the article during sintering and to prevent distortion of the article. In this fashion, net shape articles can be recovered from the sintering step.
  • Metal injection moulding is suitable for producing articles from almost any metal that can be produced in a suitable powder form.
  • aluminium is difficult to use in metal injection moulding because the adherent aluminium oxide film that is always present on the surface of particles of aluminium or aluminium alloy inhibits sintering.
  • PCT/AU2007/001108 the entire contents of which are incorporated herein by cross-reference, a method for forming an article by metal injection moulding of aluminium or an aluminium alloy is described.
  • the method comprises the steps of forming a mixture containing an aluminium powder or an aluminium alloy powder or both and optionally ceramic particles, a binder, and a sintering aid comprising a low melting point metal, injection moulding the mixture, removing the binder and sintering; wherein sintering is conducted in an atmosphere containing nitrogen and in the presence of an oxygen getter.
  • the oxygen-getter may comprise any metal that has a higher affinity for oxygen than aluminium.
  • suitable metals for use as the oxygen-getter include the alkali metals, the alkaline earth metals and the rare earth metals. Where one or more rare earth metals are used as the oxygen-getter, it is preferred that rare earth metals from the lanthanide series are used.
  • the sintering aid is a low melting point metal.
  • the sintering aid may be a metal that has a melting point that is lower than the melting point of aluminium.
  • the sintering aid comprises a low melting point metal that is insoluble in solid aluminium.
  • suitable sintering aids include tin, lead, indium, bismuth and antimony. It has been found that tin is especially suitable in assisting in sintering of aluminium and aluminium alloys. Therefore, tin is a preferred sintering aid.
  • Ceramic particles can be mixed with the aluminium or aluminium alloy powders to create an aluminium metal matrix composite.
  • the ceramic particles are used to improve or control the properties of the sintered article. Such properties can include, but are not limited to, wear resistance, stiffness or coefficient of thermal expansion.
  • a non- exhaustive list of typical ceramic materials includes SiC, Al 2 O 3 , AlN, SiO 2 , BN and TiB 2 .
  • the present invention provides a method of forming an article by metal injection moulding comprising the steps of:
  • the "powder loading" of each mixture is determined from the total powder content added to the mixture as a percentage by weight of the total weight of the green body.
  • the total powder content includes the metal powder or metal alloy powder, the sintering agent content (where present) and the ceramic particle content (where present).
  • Any aluminium alloy can be used in the present invention, including aluminium alloys from the 1000 series, 2000 series, 3000 series, 4000 series, 5000 series, 6000 series, 7000 series and 8000 series.
  • the present invention allows for designing or engineering articles such that they have desirable physical or chemical properties.
  • a first mixture as a lightweight material to be used as a central part or core of the article and to make a second mixture that will form a durable, hard wearing part that is used as a coating over the core, with the first mixture and the second mixture being injection moulded and subsequently treated to form the final article.
  • the first mixture and the second mixture are of different compositions.
  • the first mixture may comprise an aluminium or aluminium alloy powder and the second mixture may comprise a different aluminium alloy powder.
  • the first mixture may comprise two or more aluminium or aluminium alloy powders and the second mixture may comprise the same two or more aluminium or aluminium alloy powders but with a different proportion of those powders.
  • the first mixture may comprise a different sintering agent to that used in the second mixture.
  • the first mixture may comprise no ceramic particles and the second mixture may comprise ceramic particles (and vice versa).
  • the first mixture may comprise ceramic particles and the second mixture may comprise different ceramic particles.
  • the first mixture may comprise two or more ceramic particles in the second mixture may comprise differing proportions of the same two or more ceramic particles.
  • Various combinations of the above differences are also possible.
  • the binder used in the present invention may be any binder or binder composition known to be suitable for use as a binder in metal injection moulding.
  • the binder is typically an organic component or a mixture of two or more organic components.
  • the binder desirably includes thermoplastic components that enable the binder to melt upon application of heat.
  • the binder should also impart sufficient strength to the green body following injection moulding to enable the green body to be handled.
  • the binder is able to be removed from the green body in a manner that retains integrity of the body during the binder removal process. It is preferable that the binder leaves no residue following removal.
  • the binder may be made from two or more materials.
  • the two or more materials that comprise the binder may be selected such that they may be sequentially removed from the green body. In this fashion, a controlled removal of the binder is more easily achieved, thereby facilitating retention of shape integrity of the body during binder removal. In this regard, it will be appreciated that if the binder is removed too rapidly, the risk of the body losing its shape integrity is increased.
  • the binder may be removed by one or more of the known techniques used in metal injection moulding for removing the binder. For example, the binder may be removed by dissolution in a solvent, by thermal treatment to cause the binder to melt, evaporate or decompose, by catalytic removal of the binder or by wicking.
  • Two or more binder removal techniques may be used in the binder removal stage.
  • a first step in the binder removal may involve solvent extraction, followed by thermal removal of the remainder of the binder.
  • binder materials may be used. Some examples include organic polymers such as stearic acid, waxes, paraffin and polyethylene. Without wishing to be limited in any way, the present inventors have used a binder comprising stearic acid, palm oil wax and high density polyethylene in experimental work relating to the present invention.
  • a sintering aid will normally be used in the method of the present invention and, for convenience, the present invention will be described hereinafter with reference to embodiment in which a sintering aid is used.
  • the metal powder used in the present invention may have properties that allow for satisfactory sintering to take place in the absence of a separate sintering aid.
  • the sintering aid is added to the mixture prior to injection moulding of the mixture.
  • the sintering aid may comprise a low melting point metal.
  • the sintering aid may be a metal that has a melting point that is lower than the melting point of aluminium.
  • the sintering aid comprises a low melting point metal that is insoluble in solid aluminium.
  • suitable sintering aids include tin, lead, indium, bismuth and antimony. It has been found that tin is especially suitable in assisting in sintering of aluminium and aluminium alloys. Therefore, tin is a preferred sintering aid.
  • Tin is a preferred sintering aid for use in embodiments of the present invention where aluminium powder or aluminium alloy powder is used because it has been found that tin suppresses the formation of aluminium nitride during sintering (thereby avoiding formation of excessive aluminium nitride, which might have a detrimental effect on the properties of the final article) and also changes the surface tension of molten aluminium, thereby promoting good distribution of liquid aluminium phase during sintering.
  • the sintering aid may be added in an amount of up to 10% by weight, based upon the total weight of the metal powder and the sintering aid.
  • the sintering aid is present in an amount of from 0.1% to 10% by weight, more preferably 0.5% to 3% by weight, even more preferably about 2% by weight.
  • tin is used as the sintering aid, it may be added in an amount of from 0.1% to 10%, more suitably from 0.5% to 4%, even more suitably from 0.5% to 2.0% by weight of the mixture.
  • Ceramic particles may be mixed with the metal or metal alloy powders to create a metal matrix composite.
  • the ceramic particles may be used to improve or control the properties of the sintered article. Such properties can include, but are not limited to, wear resistance, stiffness or coefficient of thermal expansion.
  • a non-exhaustive list of typical ceramic materials includes SiC, Al 2 O 3 , AlN, SiO 2 , BN and TiB 2 .
  • the two mixtures are injection moulded to form a green body.
  • the two mixtures may be sequentially injection moulded (for example, the first mixture may be injection moulded and an end of the second mixture may be subsequently injection moulded).
  • the two mixtures may be simultaneously injection moulded through different gates of the injection moulding equipment.
  • the two mixtures may be injection moulded using multi-shot moulding techniques.
  • the binder is removed using conventional de-binding techniques.
  • the binder may be removed using solvents or using thermal removal, or both.
  • the green body is subjected to sintering.
  • the metal powder is aluminium or an aluminium alloy
  • blocks of an oxygen-getter may be positioned around the article that is being sintered during the sintering step.
  • powder of the oxygen-getter may be placed around or on the article that is being sintered during the sintering step.
  • the oxygen-getter may be mixed in with the aluminium or aluminium powder alloy, or mixed in with the mixture that is fed to the injection moulding apparatus.
  • a high magnesium containing master alloy powder may be used.
  • the oxygen getter is present as a component of an alloy added to the mixture, such as being present in an alloy powder added to the mixture.
  • powder of an alloy containing aluminium and magnesium may be added to the mixture or incorporated into the mixture.
  • some alloys that can be incorporated into the mixture include Al-7.9wt%Mg and Al-2 wt%Cu-9.3 wt%Mg-5.4 wt%Si.
  • the oxygen-getter removes any oxygen that may be present in the atmosphere surrounding the part during the sintering step.
  • the oxygen-getter may also act to reduce the aluminium oxide that surrounds the aluminium or aluminium alloy particles. This assists in disrupting the aluminium oxide layer around the particles, exposing fresh metal, thereby allowing sintering of the aluminium or aluminium alloy particles to take place.
  • Magnesium is a suitable oxygen-getter.
  • magnesium In addition to being relatively inexpensive, magnesium also has a high vapour pressure. Consequently, during the sintering step (which takes place at elevated temperature), magnesium vapour may surround the article that is being sintered.
  • the sintering step is conducted in a nitrogen-containing atmosphere.
  • the present inventors have postulated that conducting the sintering step in a nitrogen atmosphere may promote the formation of aluminium nitride.
  • the present inventors have postulated that forming aluminium nitride in the sintering step may assist in disrupting or breaking down the aluminium oxide film that normally surrounds the particles of aluminium or aluminium alloy.
  • the use of tin as a sintering aid may also assist in controlling the formation of AlN as formation of excessive amounts of AlN during sintering may cause detriment to the properties of the final article.
  • the present inventors have found that conducting sintering of aluminium powder in a nitrogen atmosphere can result in the rapid conversion of the aluminium to aluminium nitride. Due to the rapid rate at which the aluminium can be converted to aluminium nitride in these circumstances, there is a risk that the entire article may be converted to aluminium nitride. Using tin as a sintering aid acts to limit the formation of excess AlN in such circumstances.
  • the present inventors have postulated that the nitrogen atmosphere disrupts the aluminium oxide film on the surface of the aluminium or aluminium alloy particles by forming aluminium nitride. It is further postulated that this disruption of the aluminium oxide film enables sintering of the aluminium or aluminium alloy particles to occur.
  • the atmosphere in which the sintering step is conducted may have a low water content, for example, it may have a water vapour partial pressure of less than 0.00 IkPa.
  • the atmosphere used on the sintering step may have a dew point of less than -60°C, more preferably, less than -70 0 C.
  • Magnesium when used as an oxygen getter, reacts with oxygen and water, thereby further lowering the water content of the atmosphere. It is believed that water vapour is extremely detrimental to the sintering of aluminium.
  • the atmosphere may be an atmosphere containing nitrogen.
  • the atmosphere may be predominantly nitrogen.
  • the atmosphere may be 100% nitrogen.
  • the atmosphere may also include an inert gas.
  • the inert gas may comprise a minor part of the atmosphere.
  • the atmosphere may be essentially free of oxygen and hydrogen.
  • the gas that is supplied as the atmosphere during sintering suitably contains no oxygen or hydrogen.
  • the sintering step used in the present invention involves heating the green body to a temperature at which the aluminium or aluminium alloy sinters to form a dense body.
  • the sintering step suitably involves heating to a temperature within the range of about 55O 0 C to about 65O 0 C, more suitably 590 0 C to 64O 0 C, most suitably between 610 0 C to 63O 0 C.
  • the sintering time may vary. Typically, a shorter sintering time may be used for a higher sintering temperature. Essentially, the sintering time should be long enough to ensure that maximum densification of the article has occurred. Sintering at temperatures of from 62O 0 C to 630 0 C for up to two hours has been found to provide satisfactory results. However, both longer sintering times and shorter sintering times are encompassed by the present invention.
  • the heating rates and thermal profile used in the sintering step are normally closely controlled in metal injection moulding methods to obtain optimum properties in the final article.
  • the person skilled in the art will readily understand how to determine suitable heating rates and temperature profiles for use in the sintering step.
  • the method of the present invention may be carried out in known metal injection moulding apparatus. It will also be understood that the method of the present invention may include injection moulding more than two mixtures to form the article.
  • the present invention provides a method of forming an article by metal injection moulding comprising: forming a first mixture containing an aluminium powder or aluminium alloy powder, binder and optionally a sintering agent and optionally ceramic particles, moulding the first mixture, removing the binder and sintering to thereby determine a shrinkage factor for the first mixture, forming a second mixture containing an aluminium powder or aluminium alloy powder, binder and optionally a sintering agent and optionally ceramic particles, moulding the second mixture, removing the binder and sintering to thereby determine a shrinkage factor for the second mixture, forming a third mixture having the same powder components as the first mixture mixed with a binder, forming a fourth mixture having the same powder components as the second mixture, controlling a powder loading in the third mixture and the fourth mixture so that the third mixture and the fourth mixture exhibit similar or identical shrinkage characteristics during sintering,
  • the present invention provides a method of forming an article by metal injection moulding comprising forming a first mixture containing an aluminium powder or aluminium alloy powder, binder and optionally a sintering agent and optionally ceramic particles, moulding the first mixture, removing the binder and sintering to thereby determine a shrinkage factor for the first mixture, forming a second mixture containing an aluminium powder or aluminium alloy powder, binder and optionally a sintering agent and optionally ceramic particles, moulding the second mixture, removing the binder and sintering to thereby determine a shrinkage factor for the second mixture, determining a powder loading of the first mixture and a powder loading of the second mixture that will result in the first mixture and the second mixture exhibiting similar or identical shrinkage properties during sintering, forming a third mixture having the same powder components as the first mixture mixed with a binder, the third mixture having the determined powder loading forming a fourth mixture having the same powder components as the second mixture, the fourth mixture having the determined powder loading
  • Figure 1 shows green and sintered surfaces of the top layer (figure 1 (a)) and the bottom layer (figure 1 (b)) of a disk made from two different starting mixtures;
  • Figure 2 shows low (a) and high (b) magnification optical microstructures of the disc shown in figure 1.
  • a two layer hybrid material was formed by making a first metal injection moulding mixture comprising a powder of aluminium alloy AA6061 + 2% Sn (as a sintering aid) with appropriate binder and making a second metal injection moulding mixture comprising a powder of aluminium alloy AA6061 + 2% Sn + 10%AlN ceramic particles.
  • the separate mixtures were separately packed into 1.5 mm thick discs.
  • the discs were then packed together into 3 mm thick discs under a pressure of 30 MPa at 160 0 C.
  • the samples were solvent debound in hexane at 45°C for 24 hours. Subsequent thermal de-binding and sintering was conducted in a horizontal tube furnace.
  • the furnace was nitrogen purged at 10 litres per minute for 30 minutes to ensure a low oxygen environment before heating.
  • De-binding and sintering was conducted in nitrogen at a flow rate of 1 litre per minute.
  • Magnesium blocks were placed beside the samples to scavenge oxygen in the gas flow.
  • Specimens for metallography were vacuum impregnated in epoxy and polished using standard mechanical techniques. The optical micrographs were taken with an Olympus AX70 optical microscope with a Diagnostic Instruments SPOT digital camera.
  • Figure 1 shows green and sintered hybrid parts made from a combination of AA6061 + 2% Sn and AA6061 + 2% Sn + 10%AlN.
  • Figure l(a) shows the top layer (AA6061 + 2% Sn) in both green and sintered form, whilst figure 1 (b) shows the bottom layer (AA6061 + 2% Sn + 10%AlN) in both green and sintered form.
  • the parts were sintered at 630 0 C for 2 hours in nitrogen.
  • Optical microstructures are shown in figure 2. As can be seen from figure 1 and figure 2, even though two different mixtures were used, there is no lamination or warpage.
  • aluminium has a relatively low wear resistance.
  • the present invention allows the possibility of forming a wear resistant surface on an aluminium article by co-injection moulding of aluminium and a ceramic reinforced aluminium composite.

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

Abstract

Procédé de formation d'un article par moulage par injection de métal consistant à former un premier mélange qui contient une poudre V ou une poudre d'un alliage d'aluminium, un liant, facultativement une aide au frittage et des particules de céramique, à former un second mélange contenant une poudre d'aluminium ou une poudre d'un alliage d'aluminium, un liant, facultativement une aide au frittage et des particules de céramique, le premier mélange présentant une composition différente de celle du second mélange. Puis, ce procédé consiste à mouler par injection le premier et le second mélange pour former un corps vert, à éliminer le liant du corps vert, et à fritter ledit corps pour former l'article. Le chargement de la poudre du premier mélange et celui du second mélange sont commandés pour que le premier et le second mélange présentent un retrait similaire ou identique pendant le frittage.
PCT/AU2008/001321 2007-09-07 2008-09-05 Procédé de moulage par injection de métal WO2009029993A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2007904878A AU2007904878A0 (en) 2007-09-07 Metal Injection Moulding Method
AU2007904878 2007-09-07

Publications (1)

Publication Number Publication Date
WO2009029993A1 true WO2009029993A1 (fr) 2009-03-12

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8147585B2 (en) 2008-09-17 2012-04-03 Cool Polymers, Inc. Multi-component composition metal injection molding
DE102012019159A1 (de) * 2012-09-27 2014-03-27 Amann Girrbach Ag Verfahren zum Sintern eines Werkstücks
WO2014057346A3 (fr) * 2012-10-09 2015-04-09 Whirlpool S.A. Procédé de fabrication d'un composant poreux et composant
CN104837584A (zh) * 2013-10-14 2015-08-12 惠而浦股份公司 用于制造多孔部件的方法及其部件
US9285169B2 (en) 2012-01-25 2016-03-15 Amann Girrbach Ag Sintering device
EP2626157A3 (fr) * 2012-02-09 2017-09-06 Robert Bosch GmbH Composant en une seule pièce et son procédé de fabrication
US10022845B2 (en) 2014-01-16 2018-07-17 Milwaukee Electric Tool Corporation Tool bit
US10117732B2 (en) 2013-04-18 2018-11-06 Amann Girrbach Ag Arrangement having at least one workpiece for sintering
US10322453B2 (en) 2013-04-18 2019-06-18 Amann Girrbach Ag Sintering apparatus
CN112573896A (zh) * 2020-12-25 2021-03-30 唐山北方瓷都陶瓷集团卫生陶瓷有限责任公司 一种高强度陶瓷素坯及其制备方法
USD921468S1 (en) 2018-08-10 2021-06-08 Milwaukee Electric Tool Corporation Driver bit
CN113600817A (zh) * 2021-07-28 2021-11-05 深圳市泛海统联精密制造股份有限公司 一种导磁与非导磁双材料金属粉末注塑成型工艺
US11638987B2 (en) 2017-12-01 2023-05-02 Milwaukee Electric Tool Corporation Wear resistant tool bit

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0219401A (ja) * 1988-07-06 1990-01-23 Sanyo Chem Ind Ltd 成形用組成物、製造法および使用法
US5432224A (en) * 1988-02-18 1995-07-11 Sanyo Chemical Industries, Ltd. Moldable composition, process for producing sintered body therefrom and products from same
US5445788A (en) * 1993-12-01 1995-08-29 National Research Council Of Canada Method of producing elements from powders
US6171360B1 (en) * 1998-04-09 2001-01-09 Yamaha Corporation Binder for injection molding of metal powder or ceramic powder and molding composition and molding method wherein the same is used
US20030170137A1 (en) * 2002-03-11 2003-09-11 Advanced Materials Technologies Pte Ltd. Forming complex-shaped aluminum components
WO2005066380A1 (fr) * 2003-12-01 2005-07-21 Ex One Corporation Procedes de frittage de pieces en aluminium et en alliage a base d'aluminium
WO2008017111A1 (fr) * 2006-08-07 2008-02-14 The University Of Queensland Procédé de moulage par injection de métal

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5432224A (en) * 1988-02-18 1995-07-11 Sanyo Chemical Industries, Ltd. Moldable composition, process for producing sintered body therefrom and products from same
JPH0219401A (ja) * 1988-07-06 1990-01-23 Sanyo Chem Ind Ltd 成形用組成物、製造法および使用法
US5445788A (en) * 1993-12-01 1995-08-29 National Research Council Of Canada Method of producing elements from powders
US6171360B1 (en) * 1998-04-09 2001-01-09 Yamaha Corporation Binder for injection molding of metal powder or ceramic powder and molding composition and molding method wherein the same is used
US20030170137A1 (en) * 2002-03-11 2003-09-11 Advanced Materials Technologies Pte Ltd. Forming complex-shaped aluminum components
WO2005066380A1 (fr) * 2003-12-01 2005-07-21 Ex One Corporation Procedes de frittage de pieces en aluminium et en alliage a base d'aluminium
WO2008017111A1 (fr) * 2006-08-07 2008-02-14 The University Of Queensland Procédé de moulage par injection de métal

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8591804B2 (en) 2008-09-17 2013-11-26 Cool Polymers, Inc. Multi-component composition metal injection molding
US9044806B2 (en) 2008-09-17 2015-06-02 Cool Polymers, Inc. Multi-component composition metal injection molding
US8147585B2 (en) 2008-09-17 2012-04-03 Cool Polymers, Inc. Multi-component composition metal injection molding
US9285169B2 (en) 2012-01-25 2016-03-15 Amann Girrbach Ag Sintering device
EP2626157A3 (fr) * 2012-02-09 2017-09-06 Robert Bosch GmbH Composant en une seule pièce et son procédé de fabrication
DE102012019159A1 (de) * 2012-09-27 2014-03-27 Amann Girrbach Ag Verfahren zum Sintern eines Werkstücks
WO2014057346A3 (fr) * 2012-10-09 2015-04-09 Whirlpool S.A. Procédé de fabrication d'un composant poreux et composant
US10322453B2 (en) 2013-04-18 2019-06-18 Amann Girrbach Ag Sintering apparatus
US10117732B2 (en) 2013-04-18 2018-11-06 Amann Girrbach Ag Arrangement having at least one workpiece for sintering
CN104837584A (zh) * 2013-10-14 2015-08-12 惠而浦股份公司 用于制造多孔部件的方法及其部件
US10022845B2 (en) 2014-01-16 2018-07-17 Milwaukee Electric Tool Corporation Tool bit
US11638987B2 (en) 2017-12-01 2023-05-02 Milwaukee Electric Tool Corporation Wear resistant tool bit
US11958168B2 (en) 2017-12-01 2024-04-16 Milwaukee Electric Tool Corporation Wear resistant tool bit
USD921468S1 (en) 2018-08-10 2021-06-08 Milwaukee Electric Tool Corporation Driver bit
USD955843S1 (en) 2018-08-10 2022-06-28 Milwaukee Electric Tool Corporation Driver bit
CN112573896A (zh) * 2020-12-25 2021-03-30 唐山北方瓷都陶瓷集团卫生陶瓷有限责任公司 一种高强度陶瓷素坯及其制备方法
CN113600817A (zh) * 2021-07-28 2021-11-05 深圳市泛海统联精密制造股份有限公司 一种导磁与非导磁双材料金属粉末注塑成型工艺
CN113600817B (zh) * 2021-07-28 2023-01-06 深圳市泛海统联精密制造股份有限公司 一种导磁与非导磁双材料金属粉末注塑成型工艺

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