EP0114592A1 - Procédé de transformation de métaux à l'aide de filières - Google Patents

Procédé de transformation de métaux à l'aide de filières Download PDF

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Publication number
EP0114592A1
EP0114592A1 EP83890233A EP83890233A EP0114592A1 EP 0114592 A1 EP0114592 A1 EP 0114592A1 EP 83890233 A EP83890233 A EP 83890233A EP 83890233 A EP83890233 A EP 83890233A EP 0114592 A1 EP0114592 A1 EP 0114592A1
Authority
EP
European Patent Office
Prior art keywords
tube
jacket tube
resistant
alloy
liner
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
EP83890233A
Other languages
German (de)
English (en)
Other versions
EP0114592B1 (fr
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(A1) "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/fr
Application granted granted Critical
Publication of EP0114592B1 publication Critical patent/EP0114592B1/fr
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 producing dies, in particular for metalworking.
  • Matrices be it extrusion dies for pipes made of high-alloy steels, copper, plastic, drawing dies for wires, cold impact dies for screws, dies for hot or cold forming of plastic masses, are subject to double stress.
  • the shaping parts of the die are subjected to a strong abrasive stress, which can be directly attributed 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 often manufactured in several parts, with an inner part which is used for shaping being produced from a different material than a part which surrounds this part and which is intended to absorb the forces. Precondition that a tool divided in this way can bring the desired advantage is an exact manufacture, since only then can the shaping part be prevented from breaking.
  • the object of the invention is to create a method for producing dies which allows a die to be produced which is constructed from two different materials, and a large combination of material combinations can be used.
  • the process according to the invention essentially consists in the fact that in a casing tube, which is optionally arranged in a capsule tube, made of a tough alloy, e.g. steel, a filling made of a powdery, highly wear-resistant, in particular having a bulk density of at least 60% of the density of the compact material highly heat-resistant and / or corrosion-resistant material, given if in the pre-pressed and / or pre-sintered state and preferably with the exception of one, in particular central, hollow area of the casing tube, is introduced, if necessary compressed, and closed at the casing tube ends or capsule tube ends, whereupon or before evacuation and the tube thus closed, for example in a Protective gas atmosphere, at least 900 ° C, but below the melting point of the metallic materials and a pressure of at least 900 bar and that, if necessary after heat treatment, the composite body thus obtained, which has a full-surface metallic bond between the casing tube and the compressed material, mechanically , for example cut to length, and shaping, in particular
  • the central hollow area can be formed by a filler, preferably made of an easily machinable material, e.g. Free cutting steel, are left out, then one. particularly simple manufacture of the die is given.
  • a filler preferably made of an easily machinable material, e.g. Free cutting steel
  • a tube can also be used as a packing, in which case e.g. over a mandrel that can be forged.
  • Tools that can be exposed to particularly high stresses can be obtained by subjecting the composite body to hot deformation, in particular forging, with at least 1.3 times, in particular at least 2 times, deformation before it is mechanically processed into a die.
  • 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. Sodanh was evacuated and the suction opening 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 Cu 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 outer diameter of 100 mm and a length of 500 mm was inserted.
  • 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 a suction opening was welded on. The mixture was then evacuated and hot-isostatically pressed in accordance with 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 with a 70 mm outer 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. electrodeposited 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)
  • Manufacture And Refinement Of Metals (AREA)
  • Glass Compositions (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Coating With Molten Metal (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Semiconductor Lasers (AREA)
EP83890233A 1982-12-23 1983-12-22 Procédé de transformation de métaux à l'aide de filières Expired EP0114592B1 (fr)

Applications Claiming Priority (2)

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

Publications (2)

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

Family

ID=3567024

Family Applications (3)

Application Number Title Priority Date Filing Date
EP83890234A Withdrawn EP0114593A1 (fr) 1982-12-23 1983-12-22 Procédé de fabrication d'un cylindre creux pour machines de transformation des plastiques
EP83890233A Expired EP0114592B1 (fr) 1982-12-23 1983-12-22 Procédé de transformation de métaux à l'aide de filières
EP83890232A Expired EP0114591B1 (fr) 1982-12-23 1983-12-22 Procédé de fabrication de canons

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP83890234A Withdrawn EP0114593A1 (fr) 1982-12-23 1983-12-22 Procédé de fabrication d'un cylindre creux pour machines de transformation des plastiques

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP83890232A Expired EP0114591B1 (fr) 1982-12-23 1983-12-22 Procédé de fabrication de canons

Country Status (6)

Country Link
US (1) US4747225A (fr)
EP (3) EP0114593A1 (fr)
AT (2) ATE33218T1 (fr)
DE (2) DE3376101D1 (fr)
ES (2) ES8501657A1 (fr)
GR (2) GR79748B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0151103A2 (fr) * 1984-01-24 1985-08-07 BÖHLER Gesellschaft m.b.H. Méthode de fabrication des éléments de transport de force, notamment de transport de moment de rotation
EP0283877A1 (fr) * 1987-03-25 1988-09-28 Nippon Steel Corporation Procédé pour la fabrication de tubes de métal enrobé.
WO1992014853A1 (fr) * 1991-02-19 1992-09-03 Industrial Materials Technology, Inc. Acier a outils a resistance elevee a la fatigue thermique

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4640814A (en) * 1985-10-17 1987-02-03 Crucible Materials Corporation Method for producing clad tubular product
AT391105B (de) * 1988-10-07 1990-08-27 Boehler Gmbh Vormaterial fuer die erzeugung von verbundwerkstoffen
DE4136038C2 (de) * 1990-11-02 1994-06-16 Usui Kokusai Sangyo Kk Geschweißtes Stahlrohr mit hoher Korrosionsbeständigkeit der Innenoberfläche sowie Verfahren zu seiner Herstellung
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
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
EP2046524A4 (fr) * 2006-08-01 2016-05-25 Afl Telecommunications Llc Tubes métalliques encastrés pourvus d'un raccord de compression et leur procédé de fabrication
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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753704A (en) * 1967-04-14 1973-08-21 Int Nickel Co Production of clad metal articles
DE2504032A1 (de) * 1974-01-31 1975-08-07 Nippon Musical Instruments Mfg Verfahren zur herstellung von metallverbundstoffen
DE2514565A1 (de) * 1975-04-03 1976-10-14 Uralsky Nii Trubnoj Promy Verfahren zur herstellung von rohrerzeugnissen
DE2855155A1 (de) * 1977-12-22 1979-06-28 United Technologies Corp Verfahren zum herstellen eines fluidgekuehlten bedampfungstargets
DE3114659A1 (de) * 1980-04-10 1982-01-28 Cameron Iron Works, Inc., Houston, Tex. Verfahren zum auskleiden der hohlraeume in einem bauteil, beispielsweise einem ventil, sowie ausgekleidetes bauteil
US4327154A (en) * 1977-08-18 1982-04-27 Motoren- Und Turbinen-Union Muenchen Gmbh High-strength components of complex geometric shape and method for their manufacture

Family Cites Families (8)

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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
US4016008A (en) * 1975-07-31 1977-04-05 The International Nickel Company, Inc. Clad metal tubes
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753704A (en) * 1967-04-14 1973-08-21 Int Nickel Co Production of clad metal articles
DE2504032A1 (de) * 1974-01-31 1975-08-07 Nippon Musical Instruments Mfg Verfahren zur herstellung von metallverbundstoffen
DE2514565A1 (de) * 1975-04-03 1976-10-14 Uralsky Nii Trubnoj Promy Verfahren zur herstellung von rohrerzeugnissen
US4327154A (en) * 1977-08-18 1982-04-27 Motoren- Und Turbinen-Union Muenchen Gmbh High-strength components of complex geometric shape and method for their manufacture
DE2855155A1 (de) * 1977-12-22 1979-06-28 United Technologies Corp Verfahren zum herstellen eines fluidgekuehlten bedampfungstargets
DE3114659A1 (de) * 1980-04-10 1982-01-28 Cameron Iron Works, Inc., Houston, Tex. Verfahren zum auskleiden der hohlraeume in einem bauteil, beispielsweise einem ventil, sowie ausgekleidetes bauteil

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0151103A2 (fr) * 1984-01-24 1985-08-07 BÖHLER Gesellschaft m.b.H. Méthode de fabrication des éléments de transport de force, notamment de transport de moment de rotation
EP0151103A3 (en) * 1984-01-24 1988-01-20 Vereinigte Edelstahlwerke Aktiengesellschaft (Vew) Manufacturing method for elements of force, especially torque transmission
EP0283877A1 (fr) * 1987-03-25 1988-09-28 Nippon Steel Corporation Procédé pour la fabrication de tubes de métal enrobé.
WO1992014853A1 (fr) * 1991-02-19 1992-09-03 Industrial Materials Technology, Inc. Acier a outils a resistance elevee a la fatigue thermique

Also Published As

Publication number Publication date
DE3376101D1 (en) 1988-05-05
EP0114591A1 (fr) 1984-08-01
ES528317A0 (es) 1984-12-01
GR81355B (fr) 1984-12-11
ATE33218T1 (de) 1988-04-15
EP0114593A1 (fr) 1984-08-01
DE3376100D1 (en) 1988-05-05
ES528315A0 (es) 1984-12-01
EP0114592B1 (fr) 1988-03-30
GR79748B (fr) 1984-10-31
EP0114591B1 (fr) 1988-03-30
ATE33219T1 (de) 1988-04-15
US4747225A (en) 1988-05-31
ES8501657A1 (es) 1984-12-01
ES8501658A1 (es) 1984-12-01

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