EP2643113A1 - Procédé pour produire, avec des formes très précises, des éléments structuraux de système d'entraînement à haute résistance thermique - Google Patents

Procédé pour produire, avec des formes très précises, des éléments structuraux de système d'entraînement à haute résistance thermique

Info

Publication number
EP2643113A1
EP2643113A1 EP11788791.9A EP11788791A EP2643113A1 EP 2643113 A1 EP2643113 A1 EP 2643113A1 EP 11788791 A EP11788791 A EP 11788791A EP 2643113 A1 EP2643113 A1 EP 2643113A1
Authority
EP
European Patent Office
Prior art keywords
binder
intermetallic phase
metal powder
low
intermetallic
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.)
Granted
Application number
EP11788791.9A
Other languages
German (de)
English (en)
Other versions
EP2643113B1 (fr
Inventor
Dan Roth-Fagaraseanu
Alexander Schult
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.)
Rolls Royce Deutschland Ltd and Co KG
Original Assignee
Rolls Royce Deutschland Ltd and Co KG
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
Application filed by Rolls Royce Deutschland Ltd and Co KG filed Critical Rolls Royce Deutschland Ltd and Co KG
Publication of EP2643113A1 publication Critical patent/EP2643113A1/fr
Application granted granted Critical
Publication of EP2643113B1 publication Critical patent/EP2643113B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B22F3/12—Both compacting and sintering
    • 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
    • B22F3/24—After-treatment of workpieces or articles
    • B22F3/26—Impregnating
    • 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
    • C22C1/047—Making non-ferrous alloys by powder metallurgy comprising intermetallic compounds
    • 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
    • C22C1/0475—Impregnated alloys

Definitions

  • the invention relates to a method for near-net-shape production of high-temperature resistant engine components with geometrically complex structure by metal powder injection molding.
  • metal powder injection molding A well-known method for near-net-shape production of geometrically complicated components is also referred to as MIM process (Metal In ection Molding) designated metal powder injection molding.
  • MIM process Metal In ection Molding
  • a metal powder is first mixed with a binder of thermoplastics and waxes to form a flowable material (feedstock), which is injected into a mold by means of an extruder in a conventional injection molding process. After cooling, solidification and demolding, a so-called green part is available, from which an open-pore molding, the so-called brown part, is formed by thermal or chemical dissolution of the binder.
  • the open-pored brown part is compacted and given its final shape and has due to the remaining low porosity with the solid material on matching strength values.
  • high tempe ⁇ raturbe volatile engine components for example Turbi ⁇ nenschaufeln, near net shape
  • Turbi ⁇ nenschaufeln near net shape
  • the production of intermetallic phases and a powder produced therefrom for use in metal powder injection molding is associated with a high manufacturing and cost.
  • the invention has for its object to provide a cultivated güns ⁇ term method for near-net-shape production of high-temperature-resistant engine components with geometrically complex structure.
  • the basic idea of the invention is that a high-melting part of an intermetallic phase present as a metal powder is mixed with a binder and a green part substantially corresponding to the final contour is produced from the thus-formed feedstock by means of metal powder spraying, in which the pores remaining after dissolution of the binder are low is melted infiltrated part of the intermetallic phase, wherein the brown part thus produced is subjected to a heat depending on the set ⁇ metallic phases heat treatment for producing the intermetallic phase.
  • This makes it possible to produce high temperature resistant and lightweight engine components with geometrically complicated structure, such as turbine blades, cost-effectively from high performance materials.
  • a polymeric two-component binder is used as the binder, the first binder component being dissolved out of the green part produced by metal powder injection molding chemically, catalytically or thermally, and the second binder component being thermally removed on infiltration of the low-melting metallic part.
  • the proportion of the low-melting part of the intermetallic phase is variable and determined by the proportion of the pores after the complete debindering of the green part.
  • the proportion of the pores and thus the proportion of the infiltrated low-melting point in the intermetallic phase is determined by the adjustment of the mixing ratio between the metal powder and the two-component binder.
  • the infiltration of the molten, low-melting part of the intermetallic phase takes place in the open-pore brown part after the "squeeze-casting process under pressure.
  • the brown part after the infiltration of the low-melting part and before the intermetallic phase-generating heat treatment can be mechanically processed.
  • an iron powder is produced (step 1), which is mixed with a two-component polymeric binder (step 2).
  • a green part is produced by means of a screw press in a conventional spraying process (step 3), from which after cooling, solidification and demolding the first component of the polymeric binder is dissolved out (step 4).
  • the removal of the first component of the binder can be carried out chemically, catalytically and / or thermally.
  • the partial removal of the binder, a metal of the high melting phase and the first component of the binder best ⁇ Hendes open-pored brown part is provided that a certain - having porosity - a ⁇ adjustable depending on the binder content.
  • Method step in the subsequent comparison in a modified die casting method, the so-called “squeeze casting", in the cavities of the brown part under high pressure, a low-melting metallic phase - in this case aluminum - infilt ⁇ riert while the second component of the binder thermally
  • the volume ratio between the high-melting metallic phase (iron) and the low-melting metallic phase (aluminum) is set via the respective porosity of the brown part.
  • step 6 the corresponding one of said final shape component of atungbe ⁇ treatment for forming an iron and aluminum existing intermetallic phase chromatography (step 7) so that now a by metal powder injection geometr a complex designed and high temperature resistant component, such as a turbine blade for a gas turbine engine, is available.

Landscapes

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

Abstract

L'invention vise à produire, avec des formes extrêmement précises, un élément structural à haute résistance thermique et de conception complexe. A cet effet, une partie à point de fusion élevé d'une phase intermétallique se présentant sous forme de poudre métallique est mélangée avec un liant, et un élément cru correspondant sensiblement aux dimensions précises attendues est façonné par pulvérisation par poudrage métallique, à partir de la charge de départ, élément cru dans les pores résiduels duquel est infiltrée la phase intermétallique après élimination du liant. L'élément cuit ainsi produit, éventuellement après un traitement mécanique effectué au préalable, est soumis à un traitement thermique spécifique pour produire une phase intermétallique. L'invention permet de produire de manière économiquement avantageuse des éléments structuraux de système d'entraînement, à base de phases intermétalliques, de structure géométrique complexe.
EP11788791.9A 2010-11-25 2011-11-18 Procédé pour produire, avec des formes très précises, des éléments structuraux de système d'entraînement à haute résistance thermique Not-in-force EP2643113B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010061960A DE102010061960A1 (de) 2010-11-25 2010-11-25 Verfahren zur endkonturnahen Fertigung von hochtemperaturbeständigen Triebwerksbauteilen
PCT/EP2011/070439 WO2012069374A1 (fr) 2010-11-25 2011-11-18 Procédé pour produire, avec des formes très précises, des éléments structuraux de système d'entraînement à haute résistance thermique

Publications (2)

Publication Number Publication Date
EP2643113A1 true EP2643113A1 (fr) 2013-10-02
EP2643113B1 EP2643113B1 (fr) 2016-11-16

Family

ID=45063109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11788791.9A Not-in-force EP2643113B1 (fr) 2010-11-25 2011-11-18 Procédé pour produire, avec des formes très précises, des éléments structuraux de système d'entraînement à haute résistance thermique

Country Status (4)

Country Link
US (1) US20130266469A1 (fr)
EP (1) EP2643113B1 (fr)
DE (1) DE102010061960A1 (fr)
WO (1) WO2012069374A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11618075B2 (en) * 2020-11-13 2023-04-04 Garrett Transportation I Inc. Methods for the combined sintering and surface treatment of variable geometry turbocharger vanes

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4294615A (en) * 1979-07-25 1981-10-13 United Technologies Corporation Titanium alloys of the TiAl type
JPS6029431A (ja) * 1983-07-28 1985-02-14 Toyota Motor Corp 合金の製造方法
US4710223A (en) * 1986-03-21 1987-12-01 Rockwell International Corporation Infiltrated sintered articles
AU626435B2 (en) * 1989-07-10 1992-07-30 Toyota Jidosha Kabushiki Kaisha Method of manufacture of metal matrix composite material including intermetallic compounds with no micropores
DE4021739A1 (de) * 1990-07-07 1992-01-09 Basf Ag Thermoplastische massen fuer die herstellung metallischer formkoerper
JP3839493B2 (ja) * 1992-11-09 2006-11-01 日本発条株式会社 Ｔｉ−Ａｌ系金属間化合物からなる部材の製造方法
US5366686A (en) * 1993-03-19 1994-11-22 Massachusetts Institute Of Technology, A Massachusetts Corporation Method for producing articles by reactive infiltration
EP0732415A1 (fr) * 1995-03-14 1996-09-18 Deritend Advanced Technology Limited Procédé de préparation d'un composé intermétallique
JP3191665B2 (ja) * 1995-03-17 2001-07-23 トヨタ自動車株式会社 金属焼結体複合材料及びその製造方法
US6319437B1 (en) * 1998-03-16 2001-11-20 Hi-Z Technology, Inc. Powder injection molding and infiltration process
CN1174825C (zh) * 2000-06-14 2004-11-10 太原艺星科技有限公司 一种异形精密多孔元件的制造方法
US6599466B1 (en) * 2002-01-16 2003-07-29 Adma Products, Inc. Manufacture of lightweight metal matrix composites with controlled structure
US6823928B2 (en) * 2002-09-27 2004-11-30 University Of Queensland Infiltrated aluminum preforms
US7387763B2 (en) * 2004-07-27 2008-06-17 General Electric Company Preparation of sheet by injection molding of powder, consolidation, and heat treating
DE102006053018B4 (de) * 2006-11-10 2010-04-08 Ks Aluminium-Technologie Gmbh Zylinderkurbelgehäuse für ein Kraftfahrzeug
WO2008095080A1 (fr) * 2007-01-31 2008-08-07 Arcmelt Company, Lc. Procédé de production de matériaux composites par moulage par injection de métal

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012069374A1 *

Also Published As

Publication number Publication date
DE102010061960A1 (de) 2012-05-31
US20130266469A1 (en) 2013-10-10
WO2012069374A1 (fr) 2012-05-31
EP2643113B1 (fr) 2016-11-16

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