JPS57193288A - Spot welding method - Google Patents

Spot welding method

Info

Publication number
JPS57193288A
JPS57193288A JP7985381A JP7985381A JPS57193288A JP S57193288 A JPS57193288 A JP S57193288A JP 7985381 A JP7985381 A JP 7985381A JP 7985381 A JP7985381 A JP 7985381A JP S57193288 A JPS57193288 A JP S57193288A
Authority
JP
Japan
Prior art keywords
bimetal
end part
welding
spot
wire
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
JP7985381A
Other languages
Japanese (ja)
Other versions
JPS6331311B2 (en
Inventor
Masamitsu Hiuga
Katsuyoshi Sawakubo
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Fuji Electric Manufacturing Co Ltd
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 Fuji Electric Co Ltd, Fuji Electric Manufacturing Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP7985381A priority Critical patent/JPS57193288A/en
Publication of JPS57193288A publication Critical patent/JPS57193288A/en
Publication of JPS6331311B2 publication Critical patent/JPS6331311B2/ja
Granted 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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/10—Spot welding; Stitch welding
    • B23K11/11—Spot welding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermally Actuated Switches (AREA)
  • Manufacture Of Switches (AREA)
  • Resistance Welding (AREA)

Abstract

PURPOSE:To form stable weld zones of high strength in spot welding of a bimetal and a heater wire of a thermal type overload relay by forming many small projections on the surface of the bimetals and welding the bimetal at these parts to the heater wire. CONSTITUTION:In the case of spot welding the free end part 32 of a bumetal 3 and the end part 61 of a heater wire 6 of a m.p. higher than those of the metal constituting the bimetal in a thermal type overload relay, many ridge-like small projections 33 are formed in the longitudinal direction of the free end part 32 of the bimetal. The end part 61 of t e wire 6 is brought into contact with the parts 33 under pressure, and these are spot-welded. The welding current and the pressurizing force by a welding electrode concentrate at the peaks of the small projections 33, by which the locally molten metal is pressed and the stable spot-weld zones of high strength are formed on the end part 61 of the wire 6 and the surface of the bimetal 3 at multiple points.
JP7985381A 1981-05-26 1981-05-26 Spot welding method Granted JPS57193288A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7985381A JPS57193288A (en) 1981-05-26 1981-05-26 Spot welding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7985381A JPS57193288A (en) 1981-05-26 1981-05-26 Spot welding method

Publications (2)

Publication Number Publication Date
JPS57193288A true JPS57193288A (en) 1982-11-27
JPS6331311B2 JPS6331311B2 (en) 1988-06-23

Family

ID=13701748

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7985381A Granted JPS57193288A (en) 1981-05-26 1981-05-26 Spot welding method

Country Status (1)

Country Link
JP (1) JPS57193288A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0395404A (en) * 1989-09-07 1991-04-19 Aisin Takaoka Ltd Inspecting apparatus of surface of disk-shaped component
JPH0395403A (en) * 1989-09-07 1991-04-19 Aisin Takaoka Ltd Inspecting apparatus of surface of disk-shaped component

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5411252A (en) * 1977-06-28 1979-01-27 Union Carbide Corp Food casing with smoked color and production thereof by using amino carbonyl reaction

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5411252A (en) * 1977-06-28 1979-01-27 Union Carbide Corp Food casing with smoked color and production thereof by using amino carbonyl reaction

Also Published As

Publication number Publication date
JPS6331311B2 (en) 1988-06-23

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