BE753543A - Soudage par friction - Google Patents

Soudage par friction

Info

Publication number
BE753543A
BE753543A BE753543DA BE753543A BE 753543 A BE753543 A BE 753543A BE 753543D A BE753543D A BE 753543DA BE 753543 A BE753543 A BE 753543A
Authority
BE
Belgium
Prior art keywords
friction welding
friction
welding
Prior art date
Application number
Other languages
English (en)
French (fr)
Original Assignee
Weldinq Inst
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 Weldinq Inst filed Critical Weldinq Inst
Publication of BE753543A publication Critical patent/BE753543A/xx

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B29C65/0672Spin welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/121Control circuits therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832Reciprocating joining or pressing tools
    • B29C66/8322Joining or pressing tools reciprocating along one axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/92Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9241Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/92Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/929Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges
    • B29C66/9292Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges in explicit relation to another variable, e.g. pressure diagrams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/92Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/929Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges
    • B29C66/9292Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges in explicit relation to another variable, e.g. pressure diagrams
    • B29C66/92921Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges in explicit relation to another variable, e.g. pressure diagrams in specific relation to time, e.g. pressure-time diagrams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/93Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/932Measuring or controlling the joining process by measuring or controlling the speed by measuring the speed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/93Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • B29C66/93441Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed the speed being non-constant over time
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/93Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • B29C66/93451Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed by controlling or regulating the rotational speed, i.e. the speed of revolution
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/93Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/939Measuring or controlling the joining process by measuring or controlling the speed characterised by specific speed values or ranges
    • B29C66/9392Measuring or controlling the joining process by measuring or controlling the speed characterised by specific speed values or ranges in explicit relation to another variable, e.g. speed diagrams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/96Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • B29C66/961Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving a feedback loop mechanism, e.g. comparison with a desired value
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/82Testing the joint
    • B29C65/8207Testing the joint by mechanical methods
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/82Testing the joint
    • B29C65/8207Testing the joint by mechanical methods
    • B29C65/8215Tensile tests
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/82Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824Actuating mechanisms
    • B29C66/8242Pneumatic or hydraulic drives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/92Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/929Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/93Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/939Measuring or controlling the joining process by measuring or controlling the speed characterised by specific speed values or ranges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/94Measuring or controlling the joining process by measuring or controlling the time
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/95Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/959Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables
    • B29C66/9592Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables in explicit relation to another variable, e.g. X-Y diagrams
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/026Specifications of the specimen
    • G01N2203/0296Welds

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
BE753543D 1969-07-16 1970-07-16 Soudage par friction BE753543A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3579069A GB1293141A (en) 1969-07-16 1969-07-16 Improvements relating to friction welding

Publications (1)

Publication Number Publication Date
BE753543A true BE753543A (fr) 1971-01-18

Family

ID=10381585

Family Applications (1)

Application Number Title Priority Date Filing Date
BE753543D BE753543A (fr) 1969-07-16 1970-07-16 Soudage par friction

Country Status (6)

Country Link
US (1) US3678566A (xx)
BE (1) BE753543A (xx)
DE (1) DE2035401A1 (xx)
FR (1) FR2051786B1 (xx)
GB (1) GB1293141A (xx)
NL (1) NL7010575A (xx)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954215A (en) * 1970-12-30 1976-05-04 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Apparatus for rotary bi-axle type friction welding
JPS4929414B1 (xx) * 1970-12-30 1974-08-03
US3888405A (en) * 1972-09-05 1975-06-10 Production Technology Inc Quality control apparatus for inertial welding
BE804318A (fr) * 1972-09-05 1974-02-28 Production Technology Inc Procede et appareil pour maintenir la qualite de la soudure dans une operation de soudage
US4067490A (en) * 1974-10-10 1978-01-10 Caterpillar Tractor Co. Quality control method for inertial welding
NL7603579A (nl) * 1975-04-07 1976-10-11 Nippon Steel Corp Stelsel voor autogeen lassen.
US3998373A (en) * 1975-09-15 1976-12-21 Production Technology Inc. Length compensator for friction welding machines
US4087036A (en) * 1976-10-14 1978-05-02 Pemtec, Inc. Friction welding method and apparatus
JPS59197389A (ja) * 1983-04-07 1984-11-08 ロ−ルス−ロイス、パブリック、リミテッド、カンパニ− 溶接装置
GB2137774B (en) * 1983-04-07 1986-09-24 Rolls Royce Automatic control of friction and inertia welding process
NZ215667A (en) * 1985-05-10 1987-07-31 Thomson Welding Inspection Ltd Pneumatic friction welding apparatus
NZ215666A (en) * 1985-05-10 1987-10-30 Thomson Welding Inspection Ltd Friction welding apparatus
DE3607655A1 (de) * 1986-03-08 1987-09-10 Skf Gmbh Hydraulisch betaetigte vorrichtung
DE3638270A1 (de) * 1986-11-12 1988-05-19 Inst Elektroswarki Patona Verfahren zum reibungsschweissen
DE3815003A1 (de) * 1988-05-03 1989-11-16 Branson Ultraschall Verfahren und vorrichtung zum steuern von maschinenparametern beim reibungsschweissen
FR2641222B1 (fr) * 1989-01-04 1994-06-03 Snecma Procede de soudage par friction inertielle
US5085719A (en) * 1990-09-14 1992-02-04 Xerox Corporation Variable rate welding of thermoplastic belts
US5431325A (en) * 1993-12-27 1995-07-11 Ford Motor Company Method and apparatus for producing hermetic torque converter seam
US5558265A (en) * 1994-02-04 1996-09-24 The Safe Seal Company, Inc. Friction welding apparatus
US5699952A (en) * 1995-06-06 1997-12-23 The Fusion Bonding Corporation Automated fusion bonding apparatus
US5785805A (en) * 1996-06-14 1998-07-28 Fix, Jr.; John William Friction welding fusion enhancer apparatus
US6095395A (en) * 1997-06-06 2000-08-01 The Fusion Bonding Corporation Friction welding drill and fuse fitting apparatus
US5908044A (en) * 1997-11-26 1999-06-01 Team, Inc. Quadra-seal method and apparatus for operations upon fluid pressure containment bodies
EP1421289A1 (en) * 2001-08-20 2004-05-26 Veri-Tek International, Corp. True vehicle running center shaft assembly system
US7275677B2 (en) * 2001-08-20 2007-10-02 Veri-Tek International Corporation Synchronized tubular friction welding arrangement
US6815131B2 (en) * 2002-09-06 2004-11-09 Xerox Corporation Method for making an imaging belt
DE102004034498A1 (de) * 2004-07-16 2006-02-16 Ejot Gmbh & Co. Kg Verfahren zum Reibschweißen von Bauteilen
US20060043155A1 (en) * 2004-08-24 2006-03-02 Jeff Lovin Method and system of friction welding
DE102004045135B3 (de) * 2004-09-17 2006-04-27 Veritas Ag Verfahren und Vorrichtung zum Verbinden von Leitungen, Kraftfahrzeug mit einer derartigen Vorrichtung
JP5290779B2 (ja) * 2008-03-05 2013-09-18 株式会社豊田自動織機 摩擦圧接方法
JP5243083B2 (ja) * 2008-04-01 2013-07-24 株式会社豊田自動織機 摩擦圧接方法
US20100163601A1 (en) * 2008-12-31 2010-07-01 General Electric Company Friction weld vibration quality monitoring system
GB0906869D0 (en) * 2009-04-22 2009-06-03 Rolls Royce Plc Developments in or relating to linear friction welding
GB201002717D0 (en) 2010-02-18 2010-04-07 Rolls Royce Plc An apparatus and a method of determining the quality of a friction weld
GR20160100143A (el) * 2016-04-11 2017-11-30 Αχιλλεας Αλεξανδρος Βαϊρης Ελεγχος κατεργασιων συγκολλησης με τριβη
CN109014558B (zh) * 2017-06-12 2020-08-04 中国航空制造技术研究院 一种提高线性摩擦焊缩短量精度的方法
US11413699B2 (en) 2019-08-21 2022-08-16 Paul Po Cheng Method and system for fusing pipe segments
CN111595670B (zh) * 2020-04-22 2023-04-25 中国石油天然气集团有限公司 一种管道焊缝微区拉伸试样加工及测试方法
US20220324051A1 (en) * 2021-04-08 2022-10-13 Ford Global Technologies, Llc Adaptive friction element weld process and control
CN113478230B (zh) * 2021-07-15 2022-04-22 江苏恒高电气制造有限公司 一种导体焊接装置及焊接方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3455494A (en) * 1963-12-23 1969-07-15 North American Rockwell Automatic control system for friction welding machine
FR1426209A (fr) * 1964-11-04 1966-01-28 Rockwell Standard Co Machine à souder par friction
GB1223111A (en) * 1967-05-16 1971-02-24 Steelweld Ltd Improvements in and relating to friction welding
FR1569067A (xx) * 1968-04-05 1969-05-30

Also Published As

Publication number Publication date
NL7010575A (xx) 1971-01-19
FR2051786B1 (xx) 1974-03-01
DE2035401A1 (de) 1971-02-04
FR2051786A1 (xx) 1971-04-09
GB1293141A (en) 1972-10-18
US3678566A (en) 1972-07-25

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: THE WELSING INSTITUTE

Effective date: 19870731