GB2003779A - A method and apparatus for checking a friction welding operation - Google Patents

A method and apparatus for checking a friction welding operation

Info

Publication number
GB2003779A
GB2003779A GB7834994A GB7834994A GB2003779A GB 2003779 A GB2003779 A GB 2003779A GB 7834994 A GB7834994 A GB 7834994A GB 7834994 A GB7834994 A GB 7834994A GB 2003779 A GB2003779 A GB 2003779A
Authority
GB
United Kingdom
Prior art keywords
checking
bead
welding operation
friction welding
pyrometer
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
GB7834994A
Other versions
GB2003779B (en
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.)
Automobiles Peugeot SA
Automobiles Citroen SA
Original Assignee
Automobiles Peugeot SA
Automobiles Citroen SA
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 Automobiles Peugeot SA, Automobiles Citroen SA filed Critical Automobiles Peugeot SA
Publication of GB2003779A publication Critical patent/GB2003779A/en
Application granted granted Critical
Publication of GB2003779B publication Critical patent/GB2003779B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-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
    • B23K20/121—Control circuits therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Articles (AREA)
  • Radiation Pyrometers (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

A method of checking the progress of a friction welding operation comprises measuring the radiation produced by a bead or beads 4 formed around the periphery of the welded joint of the members P1, P2 being welded and checking the heat radiation produced by the heating of the or each bead during welding as a function of time. Apparatus for use in this method comprises a pyrometer 1 with a lens 2 whose optical axis can be directed towards the or one of the beads and an electronic circuit 7 for comparing, as a function of time, the value of the heat radiation of the bead found by the pyrometer with a predetermined range of values to check whether the value is within or outside the range. <IMAGE>
GB7834994A 1977-09-05 1978-08-30 Method for checking a friction welding operation Expired GB2003779B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7726876A FR2407784B1 (en) 1977-09-05 1977-09-05

Publications (2)

Publication Number Publication Date
GB2003779A true GB2003779A (en) 1979-03-21
GB2003779B GB2003779B (en) 1982-05-26

Family

ID=9195054

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7834994A Expired GB2003779B (en) 1977-09-05 1978-08-30 Method for checking a friction welding operation

Country Status (3)

Country Link
DE (1) DE2837284A1 (en)
FR (1) FR2407784B1 (en)
GB (1) GB2003779B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171513A (en) * 1985-02-19 1986-08-28 Atomic Energy Authority Uk A safety system for a laser-beam utilising facility

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4651914A (en) * 1984-09-04 1987-03-24 Pipemakers, Inc. Mobile pipe mill
GB8507094D0 (en) * 1985-03-19 1985-04-24 Welding Inst Welding monitor
US5165589A (en) * 1991-06-20 1992-11-24 General Electric Company Concurrent friction/joule heating weld process
US5156316A (en) * 1991-06-20 1992-10-20 General Electric Company Friction welding temperature measurement and process control system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1569737A (en) * 1968-03-08 1969-06-06
FR1569067A (en) * 1968-04-05 1969-05-30
US3888405A (en) * 1972-09-05 1975-06-10 Production Technology Inc Quality control apparatus for inertial welding

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171513A (en) * 1985-02-19 1986-08-28 Atomic Energy Authority Uk A safety system for a laser-beam utilising facility
GB2171513B (en) * 1985-02-19 1989-08-31 Atomic Energy Authority Uk Safety system for laser-utilising facilities

Also Published As

Publication number Publication date
FR2407784B1 (en) 1982-02-26
FR2407784A1 (en) 1979-06-01
GB2003779B (en) 1982-05-26
DE2837284A1 (en) 1979-03-08

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee