EP0114592B1 - Verfahren zur Metallverarbeitung unter Verwendung von Matrizen - Google Patents

Verfahren zur Metallverarbeitung unter Verwendung von Matrizen Download PDF

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Publication number
EP0114592B1
EP0114592B1 EP83890233A EP83890233A EP0114592B1 EP 0114592 B1 EP0114592 B1 EP 0114592B1 EP 83890233 A EP83890233 A EP 83890233A EP 83890233 A EP83890233 A EP 83890233A EP 0114592 B1 EP0114592 B1 EP 0114592B1
Authority
EP
European Patent Office
Prior art keywords
tube
process according
jacket tube
alloy
compressed
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.)
Expired
Application number
EP83890233A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0114592A1 (de
Inventor
Manfred Gstettner
Bruno Dipl.-Ing. Hribernik
Alexander Kohnhauser
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.)
Voest-Alpine Stahl AG Te Linz Ad
Original Assignee
Vereinigte Edelstahlwerke AG
Voestalpine Stahl 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3567024&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0114592(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Vereinigte Edelstahlwerke AG, Voestalpine Stahl GmbH filed Critical Vereinigte Edelstahlwerke AG
Publication of EP0114592A1 publication Critical patent/EP0114592A1/de
Application granted granted Critical
Publication of EP0114592B1 publication Critical patent/EP0114592B1/de
Expired legal-status Critical Current

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
    • B22F3/1208—Containers or coating used therefor
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/02—Composite barrels, i.e. barrels having multiple layers, e.g. of different materials
    • 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
    • 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
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12063—Nonparticulate metal component
    • Y10T428/12097—Nonparticulate component encloses particles

Definitions

  • the invention relates to a method for metal processing using matrices which have a shaping inner part and at least one shell part partially encasing this, made of different, metallic materials.
  • Matrices be they extrusion dies for pipes made of high-alloy steels, copper, plastic, drawing dies for wires, cold-forming dies for screws, dies for hot or cold forming of plastic masses are subject to a double load.
  • the shaping parts are subjected to a highly abrasive stress, which is directly attributable to the deformation of the material to be molded, and, on the other hand, a compressive stress occurs because the material to be molded offers resistance to deformation. This resistance causes pressure and tensile stress on the die.
  • matrices are also manufactured in several parts, with an inner part that is used for shaping being produced from a different material than a part surrounding this part, which is intended to absorb forces. Precondition that a tool divided in this way can bring the desired advantage is precise manufacture, since only then can the shaping part be prevented from breaking.
  • a method is described which is suitable for lining cavities, including pipes.
  • a gap is created in a casing tube, for example made of steel, by introducing a thin-walled metal part, into which metal powder is filled, the gap is then evacuated and then the body with the metal part and powder contained therein at approx. 1150 ° C. and 103 N / mm 2 is compressed. A final post-processing is possible.
  • No. 4,327,154 shows a method for producing tubular parts, a composite part being produced by applying a powder component to a tubular metal shell using hot isostatic pressing between 1000 ° and 1400 ° C. and pressures from 10 to 1000 bar.
  • the invention has for its object to provide a method for metal processing using dies, which allows a die to be used which is constructed from two different materials, and a combination of material pairs can be used.
  • the method according to the invention essentially consists in that the die is manufactured in such a way that a filling made of a powdery, highly wear-resistant or corrosion-resistant material and having a bulk density of at least 60% of the density of the compact material is inserted into a casing tube made of a tough alloy is inserted with a recess in a central hollow area of the casing tube, the hollow area being cut out by a filler made of free-cutting steel, then compressed and closed at the ends of the casing tube, whereupon the pipe is closed and evacuated at 900 ° C, but below the melting point of the metallic materials and a pressure of at least 900 bar is pressed, and that the composite body thus obtained, which has a full-surface mechanical bond between the casing tube and the compressed material, before its shaping further processing into a die of a hot deformation with an at least subjected to at least 1.3-fold deformation, processed to give shape.
  • a tube can also be used as a packing, in which case e.g. over a mandrel that can be forged.
  • a sleeve tube made of an alloy of the following composition in wt .-% C 0.36, Si 1.1, Cr 5.0, Mo 1.1, V 0.40 and remainder iron with an outer diameter of 120 mm and an inner diameter of 60 mm and a length of 1200 mm.
  • Degassing was carried out at 360 ° C., whereupon an upper cover with a suction opening was welded onto the capsule tube. Then it was evacuated and the suction opening was closed.
  • the encapsulated body was hot-isostatically pressed for 3 hours in an argon atmosphere at 1150 ° C. and at a pressure of 1020 bar.
  • This composite body was then forged on a long forging machine to an outer diameter of approximately 80 mm, which corresponds to approximately 2.5 times the deformation. After the forging, annealing was carried out, after which an extrusion die for the production of copper pipes was produced by mechanical processing, cutting to length, turning.
  • a hollow cylinder made of steel with the following composition C 0.03, Mo 5.0, Ni 18.5, Co 9 , 0, Ti 0.6 introduced with an outer diameter of 210 mm and an inner diameter of 120 mm and a length of 500 mm.
  • a cylindrical rod made of free-cutting steel with an outside diameter of 100 mm and a length of 500 mm was inserted in the center of the casing tube.
  • the hollow cylindrical space was filled with a powder of a cobalt-based alloy of the following composition in% by weight C 0.25, Cr 28.0, Mo 5.4, Ni 3.0, rest Co, a density of 6.8 g being obtained by shaking / cm 3 was reached.
  • Degassing was carried out at 360 ° C., whereupon an upper cover with suction openings was welded on. It was then evacuated and hot-isostatically pressed according to Example 2.
  • the composite body thus obtained was forged on a long forging machine with a fourfold deformation. Further processing was carried out after solution annealing as in Example 2 to give a hot-drawing die.
  • a 100 mm long sleeve tube of 70 mm outside diameter and a wall of 20 mm made of the material 25CrMo4 was made entirely of a spherical alloy powder of the composition in% by weight 0.9 C to produce a cold impact die for gate screws.
  • the hot isostatic pressing was carried out at 1050 ° C. and a gas pressure of 1100 bar for three hours.
  • the recess intended for the specified purpose and corresponding to the screw shape was produced by EDM machining.
  • the sleeve tube can also be welded directly to the lids, since in some cases no pressure can act on the powder in the radial direction due to the material thickness of the sleeve tube.
  • the core can also be formed by a hollow cylinder, in which case a mandrel can be used for forging.
  • a cladding tube can also be used which has an inner coating, e.g. Electrolytically deposited from nickel or the like., which can occur as an adhesion promoter between the material of the cladding tube and the powder.
  • an inner coating e.g. Electrolytically deposited from nickel or the like., which can occur as an adhesion promoter between the material of the cladding tube and the powder.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Forging (AREA)
  • Powder Metallurgy (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Coating With Molten Metal (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Semiconductor Lasers (AREA)
  • Glass Compositions (AREA)
EP83890233A 1982-12-23 1983-12-22 Verfahren zur Metallverarbeitung unter Verwendung von Matrizen Expired EP0114592B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT467982 1982-12-23
AT4679/82 1982-12-23

Publications (2)

Publication Number Publication Date
EP0114592A1 EP0114592A1 (de) 1984-08-01
EP0114592B1 true EP0114592B1 (de) 1988-03-30

Family

ID=3567024

Family Applications (3)

Application Number Title Priority Date Filing Date
EP83890233A Expired EP0114592B1 (de) 1982-12-23 1983-12-22 Verfahren zur Metallverarbeitung unter Verwendung von Matrizen
EP83890234A Withdrawn EP0114593A1 (de) 1982-12-23 1983-12-22 Verfahren zur Herstellung eines Maschinenhohlzylinders für Kunststoffverarbeitungsmaschinen
EP83890232A Expired EP0114591B1 (de) 1982-12-23 1983-12-22 Verfahren zur Herstellung von Waffenrohren

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP83890234A Withdrawn EP0114593A1 (de) 1982-12-23 1983-12-22 Verfahren zur Herstellung eines Maschinenhohlzylinders für Kunststoffverarbeitungsmaschinen
EP83890232A Expired EP0114591B1 (de) 1982-12-23 1983-12-22 Verfahren zur Herstellung von Waffenrohren

Country Status (6)

Country Link
US (1) US4747225A (cs)
EP (3) EP0114592B1 (cs)
AT (2) ATE33218T1 (cs)
DE (2) DE3376100D1 (cs)
ES (2) ES8501657A1 (cs)
GR (2) GR79748B (cs)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT385227B (de) * 1984-01-24 1988-03-10 Ver Edelstahlwerke Ag Verfahren zur herstellung von kraftuebertragenden, insbesondere drehmomentuebertragenden elementen
US4640814A (en) * 1985-10-17 1987-02-03 Crucible Materials Corporation Method for producing clad tubular product
EP0283877B1 (en) * 1987-03-25 1993-06-23 Nippon Steel Corporation Method of producing clad metal tubes.
AT391105B (de) * 1988-10-07 1990-08-27 Boehler Gmbh Vormaterial fuer die erzeugung von verbundwerkstoffen
US5277228A (en) * 1990-11-02 1994-01-11 Usui Kokusai Sangyo Kaisha Limited Welded pipe with excellent corrosion resistance inner surface
US5290507A (en) * 1991-02-19 1994-03-01 Runkle Joseph C Method for making tool steel with high thermal fatigue resistance
US5341719A (en) * 1992-12-14 1994-08-30 General Electric Company Multi-layer composite gun barrel
US5357842A (en) * 1993-07-09 1994-10-25 Reynolds Charles E Recoil reducing device
US6218026B1 (en) 1995-06-07 2001-04-17 Allison Engine Company Lightweight high stiffness member and manufacturing method thereof
US5724643A (en) * 1995-06-07 1998-03-03 Allison Engine Company, Inc. Lightweight high stiffness shaft and manufacturing method thereof
US5856631A (en) * 1995-11-20 1999-01-05 Nitinol Technologies, Inc. Gun barrel
DE19834394A1 (de) * 1998-07-30 2000-02-03 Rheinmetall W & M Gmbh Waffenrohr mit einer verschleißmindernden Hartchromschicht
SE516130C2 (sv) * 1999-03-15 2001-11-19 Damasteel Ab Ämne för metallprodukt, förfarande för framställning av metallprodukt samt metallprodukt
RU2167742C2 (ru) * 1999-03-31 2001-05-27 Курский государственный технический университет Способ армирования металлических изделий твердосплавным слоем
DE19926246A1 (de) * 1999-06-09 2000-12-14 Rheinmetall W & M Gmbh Verfahren zur Innenbeschichtung eines Waffenrohres
US6594936B1 (en) * 2002-10-03 2003-07-22 Gary Sniezak Method for lining a gun barrel
US20040226211A1 (en) * 2003-05-16 2004-11-18 Ra Brands. L.L.C. Composite receiver for firearms
US20040244254A1 (en) * 2003-06-09 2004-12-09 Barfield Christopher A.. Firearm safety device
US7922065B2 (en) 2004-08-02 2011-04-12 Ati Properties, Inc. Corrosion resistant fluid conducting parts, methods of making corrosion resistant fluid conducting parts and equipment and parts replacement methods utilizing corrosion resistant fluid conducting parts
US7963202B1 (en) * 2005-09-21 2011-06-21 The United States Of America As Represented By The Secretary Of The Army Superalloy mortar tube
US7921590B2 (en) 2006-02-23 2011-04-12 Strum, Ruger & Company, Inc. Composite firearm barrel reinforcement
US20100236122A1 (en) * 2006-07-26 2010-09-23 Fonte Matthew V Flowforming Gun Barrels and Similar Tubular Devices
BRPI0621189A2 (pt) * 2006-08-01 2011-12-06 Afl Telecommunications Llc tubo metálico, método para a criação de um tubo metálico e método para a criação de um produto de tubo metálico
US8910409B1 (en) 2010-02-09 2014-12-16 Ati Properties, Inc. System and method of producing autofrettage in tubular components using a flowforming process
US8869443B2 (en) 2011-03-02 2014-10-28 Ati Properties, Inc. Composite gun barrel with outer sleeve made from shape memory alloy to dampen firing vibrations
US10118259B1 (en) 2012-12-11 2018-11-06 Ati Properties Llc Corrosion resistant bimetallic tube manufactured by a two-step process
US9279633B2 (en) 2014-01-21 2016-03-08 Richard R. Hayes Multi-caliber weapon
US9796057B2 (en) * 2015-01-15 2017-10-24 Saeilo Enterprises, Inc. Gun barrel assembly
SE2300011A1 (sv) * 2023-02-09 2024-08-10 Bae Systems Bofors Ab Eldrör

Family Cites Families (14)

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US930927A (en) * 1906-03-19 1909-08-10 Robert H Berkstresser Gun-barrel and process of producing the same.
US2372202A (en) * 1940-05-08 1945-03-27 Mallory & Co Inc P R Bearing
US2636849A (en) * 1946-12-13 1953-04-28 Us Sec War Method of electroforming gun barrels and liners
US2977666A (en) * 1954-12-29 1961-04-04 Porter H Brace Method of making gun liner elements
US3112553A (en) * 1960-06-08 1963-12-03 William H Safranek Electroforming of gun liners
US3261121A (en) * 1961-10-13 1966-07-19 Joseph R Eves Gun barrel with explosively welded liner
US3753704A (en) * 1967-04-14 1973-08-21 Int Nickel Co Production of clad metal articles
JPS50106844A (cs) * 1974-01-31 1975-08-22
DE2514565C3 (de) * 1975-04-03 1979-09-20 Uralskij Nautschno-Issledovatelskij Institut Trubnoj Promyschlennosti, Tscheljabinsk (Sowjetunion) Verfahren zur Herstellung eines Verbundrohres
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DE2737248C2 (de) * 1977-08-18 1985-09-19 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Bauteil hoher Festigkeit mit komplizierter geometrischer Form und Verfahren zu dessen Herstellung
US4135286A (en) * 1977-12-22 1979-01-23 United Technologies Corporation Sputtering target fabrication method
GB2073783B (en) * 1980-04-10 1984-10-10 Cameron Iron Works Inc Lining valves by hot isotatic pressing
US4426248A (en) * 1983-05-20 1984-01-17 The United States Of America As Represented By The Secretary Of The Army Process for coating rifle tubes

Also Published As

Publication number Publication date
EP0114592A1 (de) 1984-08-01
ES8501658A1 (es) 1984-12-01
ES528315A0 (es) 1984-12-01
GR79748B (cs) 1984-10-31
GR81355B (cs) 1984-12-11
ATE33218T1 (de) 1988-04-15
ATE33219T1 (de) 1988-04-15
EP0114591B1 (de) 1988-03-30
DE3376101D1 (en) 1988-05-05
US4747225A (en) 1988-05-31
ES8501657A1 (es) 1984-12-01
ES528317A0 (es) 1984-12-01
DE3376100D1 (en) 1988-05-05
EP0114591A1 (de) 1984-08-01
EP0114593A1 (de) 1984-08-01

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