EP0364430A1 - Vormaterial für die Erzeugung von Verbundwerkstoffen - Google Patents

Vormaterial für die Erzeugung von Verbundwerkstoffen Download PDF

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Publication number
EP0364430A1
EP0364430A1 EP89890232A EP89890232A EP0364430A1 EP 0364430 A1 EP0364430 A1 EP 0364430A1 EP 89890232 A EP89890232 A EP 89890232A EP 89890232 A EP89890232 A EP 89890232A EP 0364430 A1 EP0364430 A1 EP 0364430A1
Authority
EP
European Patent Office
Prior art keywords
outer part
closure
temperature
parts
production
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.)
Withdrawn
Application number
EP89890232A
Other languages
German (de)
English (en)
French (fr)
Inventor
Walter Kroisenbrunner
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.)
Boehler GmbH
Boehler GmbH Germany
Original Assignee
Boehler GmbH
Boehler GmbH Germany
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 Boehler GmbH, Boehler GmbH Germany filed Critical Boehler GmbH
Publication of EP0364430A1 publication Critical patent/EP0364430A1/de
Withdrawn legal-status Critical Current

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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
    • 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
    • B22F7/08—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 with one or more parts not made from powder
    • 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
    • B22F7/062—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 involving the connection or repairing of preformed parts
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49879—Spaced wall tube or receptacle
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]

Definitions

  • the invention relates to a starting material for the production of composite parts by hot forming or by hot isostatic pressing, consisting of a tubular outer part, which optionally forms a component of the composite part after the forming, and at least one core or inner part made of solid and / or powdery material exists, which forms the further component (s) in the finished product, and two closure parts arranged on the end face of the tubular outer part, which optionally have a gas connection, and a method for producing the primary material.
  • Composite materials are advantageously used for machine parts and tools, to which different requirements such as chemical resistance and hardness or strength or wear resistance and toughness are made at the same time.
  • Such composite materials can be created by fusion welding plating and the like, or by a metallic connection of two or more parts by hot forming.
  • Composites with an inner component and an outer component that surrounds it, in particular largely concentrically arranged, can be advantageously and inexpensively produced from primary material, in which the outer part simultaneously serves as a capsule shell, with only capsule bottoms or closure parts being welded on the end face to the outer part.
  • the disadvantage here is that if the outer part consists of a material that is difficult to weld or can only be welded with appropriate preheating, such as Cold work steels (e.g.
  • additional measures such as the application of so-called buffer welding systems with intermediate annealing of the entire outer part and cleaning or descaling, especially in the heat-affected zone, are required before the closure parts can be welded gas-tight and the weld seam even during heating of the primary material to processing temperature remains crack-free and does not induce any cracks in the base material.
  • Such additional measures are very complex and usually do not provide sufficient production security. For this reason, and because some special materials may not be able to be connected to the closure parts by fusion welding if the requirements are met, it is often necessary to produce primary material by welding the parts to be connected into a lost capsule made of weldable material.
  • the invention is based on the object of avoiding the above disadvantages and of creating in a simple manner a starting material for the production of composite material parts and a method for producing the starting material.
  • the invention consists in that closure parts at least partially in a tubular, preferably in the closure area with step-shaped wall cross-section protrude, whereby on the mating surfaces, which are made with a roughness or roughness RA of at most 200 microns, preferably at most 10 microns, in particular 4 microns, there is a surface pressure and the closure parts, optionally outside, holding devices, such as Pins, blind holes, and the like.
  • the closure parts are formed from a material that is at least one of the same, in particular one has a higher coefficient of thermal expansion, preferably higher thermoforming capacity, with essentially the same resistance to deformation at the processing temperature of the primary material and a softening temperature exceeding this temperature by at least 90 ° C. and, if appropriate, the residual cavities in the primary material are filled with inert gas or evacuated.
  • the closure parts consist of an austenitic alloy, in particular of a chromium-nickel steel or of a manganese steel or of a nickel-manganese steel.
  • the process for the production of the primary material consists essentially in the fact that in a tubular outer part, which may optionally be heated beforehand, a closure part which is at a temperature lower than at least 50 ° C., preferably 100 ° C., in particular 150 ° C. the outer part has been brought, inserted and held until the temperature is equalized, after which one or more inner parts (s), optionally compressed in powder form by methods known per se, are (are) introduced into the outer part which is closed and a second closure part after the same insertion method is fixed in the outer part, if necessary by means of a gas connection, inert gas is introduced into the residual cavities in the primary material or these are evacuated, after which the gas connection is closed. It is advantageous if the outer part is at room temperature left and an adjustment of the temperature difference is carried out by cooling the closure parts in a cooling medium, for example liquid air or liquid nitrogen.
  • a cooling medium for example liquid air or liquid nitrogen.
  • a fixed inner part (2) is introduced into an outer part (1), in which the closure parts (3) partially protrude at the end.
  • the fitting surfaces (4) are formed by a stepped wall cross section of the outer part and cooperate with those of the closure parts.
  • the closure parts (3) have mounting devices (7), one closure part has a gas connection (5).
  • One of the remaining cavities (6) in the primary material is formed between the outer part (1) and the inner part (2).
  • a starting material for the production of a three-component composite part is shown, being between a fixed core part (2), which is held in positioning points (10) by closure parts (3) and an outer part (1), in which the Closure parts (3) protrude, a powdery intermediate part (9) is arranged.
  • the closure part (3) which carries a gas connection (5), has a mounting device designed as a blind hole.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Furnace Details (AREA)
EP89890232A 1988-10-07 1989-09-05 Vormaterial für die Erzeugung von Verbundwerkstoffen Withdrawn EP0364430A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2479/88A AT391105B (de) 1988-10-07 1988-10-07 Vormaterial fuer die erzeugung von verbundwerkstoffen
AT2479/88 1988-10-07

Publications (1)

Publication Number Publication Date
EP0364430A1 true EP0364430A1 (de) 1990-04-18

Family

ID=3535075

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89890232A Withdrawn EP0364430A1 (de) 1988-10-07 1989-09-05 Vormaterial für die Erzeugung von Verbundwerkstoffen

Country Status (8)

Country Link
US (1) US5004653A (fi)
EP (1) EP0364430A1 (fi)
JP (1) JPH02122003A (fi)
CN (1) CN1042323A (fi)
AT (1) AT391105B (fi)
FI (1) FI87743C (fi)
NO (1) NO893933L (fi)
RU (1) RU2004383C1 (fi)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995032819A1 (en) * 1994-05-30 1995-12-07 Anval Nyby Powder Ab Manufacturing of high alloy wire

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5613181A (en) * 1994-12-21 1997-03-18 International Business Machines Corporation Co-sintered surface metallization for pin-join, wire-bond and chip attach
US5724643A (en) * 1995-06-07 1998-03-03 Allison Engine Company, Inc. Lightweight high stiffness shaft and manufacturing method thereof
US6218026B1 (en) 1995-06-07 2001-04-17 Allison Engine Company Lightweight high stiffness member and manufacturing method thereof
US6168072B1 (en) 1998-10-21 2001-01-02 The Boeing Company Expansion agent assisted diffusion bonding
US6811745B2 (en) * 2003-01-16 2004-11-02 Ut-Battelle, Llc Manufacture of annular cermet articles
CN100436923C (zh) * 2006-09-12 2008-11-26 武汉理工大学 复合材料低温力矩管的制备方法
US20160361766A1 (en) * 2013-12-20 2016-12-15 Sandvik Intellectual Property Ab Method for manufacturing a fuel nozzle blank with a metallic cladding
KR20160101996A (ko) * 2013-12-20 2016-08-26 산드빅 인터렉츄얼 프로퍼티 에이비 클래딩된 부품의 제조 방법
CN104368804B (zh) * 2014-09-25 2016-08-24 武汉重工铸锻有限责任公司 塞头与喷嘴接头的整体加工方法
CN106944612B (zh) * 2017-05-22 2019-01-22 广东博杰特新材料科技有限公司 双金属管套真空烧结成型工艺及其制品

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2348696A (en) * 1941-09-19 1944-05-09 Erie Enameling Company Method of forming tanks
US3941570A (en) * 1972-10-10 1976-03-02 Aluminum Company Of America Conically capped extrusion billet
US4016008A (en) * 1975-07-31 1977-04-05 The International Nickel Company, Inc. Clad metal tubes
US4015765A (en) * 1976-05-10 1977-04-05 Western Electric Company, Inc. Formation and utilization of compound billet
US4640815A (en) * 1985-10-17 1987-02-03 Crucible Materials Corporation Method and assembly for producing extrusion-clad tubular product

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH227631A (de) * 1941-07-16 1943-06-30 Metallgesellschaft Ag Verfahren zur Herstellung von Verbundkörpern unter Verwendung von Metallpulvern.
GR79748B (fi) * 1982-12-23 1984-10-31 Ver Edelstahlwerke Ag
EP0283877B1 (en) * 1987-03-25 1993-06-23 Nippon Steel Corporation Method of producing clad metal tubes.
SE460955B (sv) * 1987-12-18 1989-12-11 Kommanditbolaget Cold Isostati Saett vid framstaellning av en roerformig pulverpresskropp samt en foer genomfoerande av saettet avsedd anordning
US4933141A (en) * 1988-03-28 1990-06-12 Inco Alloys International, Inc. Method for making a clad metal product

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2348696A (en) * 1941-09-19 1944-05-09 Erie Enameling Company Method of forming tanks
US3941570A (en) * 1972-10-10 1976-03-02 Aluminum Company Of America Conically capped extrusion billet
US4016008A (en) * 1975-07-31 1977-04-05 The International Nickel Company, Inc. Clad metal tubes
US4015765A (en) * 1976-05-10 1977-04-05 Western Electric Company, Inc. Formation and utilization of compound billet
US4640815A (en) * 1985-10-17 1987-02-03 Crucible Materials Corporation Method and assembly for producing extrusion-clad tubular product

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995032819A1 (en) * 1994-05-30 1995-12-07 Anval Nyby Powder Ab Manufacturing of high alloy wire

Also Published As

Publication number Publication date
CN1042323A (zh) 1990-05-23
JPH02122003A (ja) 1990-05-09
FI87743B (fi) 1992-11-13
NO893933D0 (no) 1989-10-03
FI894694A (fi) 1990-04-08
AT391105B (de) 1990-08-27
RU2004383C1 (ru) 1993-12-15
ATA247988A (de) 1990-02-15
FI87743C (fi) 1993-02-25
US5004653A (en) 1991-04-02
FI894694A0 (fi) 1989-10-04
NO893933L (no) 1990-04-09

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