JPS5597878A - Detaching method of spot weld zone of lapped plates - Google Patents

Detaching method of spot weld zone of lapped plates

Info

Publication number
JPS5597878A
JPS5597878A JP437979A JP437979A JPS5597878A JP S5597878 A JPS5597878 A JP S5597878A JP 437979 A JP437979 A JP 437979A JP 437979 A JP437979 A JP 437979A JP S5597878 A JPS5597878 A JP S5597878A
Authority
JP
Japan
Prior art keywords
arc
weld zone
spot weld
lapped
lapped plates
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.)
Pending
Application number
JP437979A
Other languages
Japanese (ja)
Inventor
Kengo Furuya
Minoru Shinoda
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP437979A priority Critical patent/JPS5597878A/en
Publication of JPS5597878A publication Critical patent/JPS5597878A/en
Pending legal-status Critical Current

Links

Landscapes

  • Arc Welding In General (AREA)

Abstract

PURPOSE: To detach the upper plate only without making any hole in the lower plate being a particularly thin steel sheet by generating an arc between the spot weld zone of the lapped plates and carbon electrode to fuse the spot weld zone then blowing compressed air to the molten part and cutting off the arc.
CONSTITUTION: An arc 11 is generated between the spot weld zone 3 or 4 of lapped plates 1, 2 and a carbon electrode 7 or an arc is generated with high voltage in the absence of contact by a separately provided high frequency generating device or the like. After the weld zone is melted by the arc generation, compressed air 12 is blown to this molten portion and after a fixed time, the arc 11 is extinguished. Thence, slight force is given between the upper plate 1 and lower plate 2, by which the both may be pulled apart without making any hole in the plate 2.
COPYRIGHT: (C)1980,JPO&Japio
JP437979A 1979-01-17 1979-01-17 Detaching method of spot weld zone of lapped plates Pending JPS5597878A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP437979A JPS5597878A (en) 1979-01-17 1979-01-17 Detaching method of spot weld zone of lapped plates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP437979A JPS5597878A (en) 1979-01-17 1979-01-17 Detaching method of spot weld zone of lapped plates

Publications (1)

Publication Number Publication Date
JPS5597878A true JPS5597878A (en) 1980-07-25

Family

ID=11582716

Family Applications (1)

Application Number Title Priority Date Filing Date
JP437979A Pending JPS5597878A (en) 1979-01-17 1979-01-17 Detaching method of spot weld zone of lapped plates

Country Status (1)

Country Link
JP (1) JPS5597878A (en)

Similar Documents

Publication Publication Date Title
GB2295569B (en) Enhanced laser beam welding
ES8608266A1 (en) Welding or cutting torch and method of striking an arc for such a torch.
DK161748C (en) APPARATUS FOR CONTROLING A PLASMA WAVE OR PLASMA MACHINE BURNER WITH SHORT CIRCUIT
JPS5597878A (en) Detaching method of spot weld zone of lapped plates
EP0257766A3 (en) Method and apparatus for cutting or welding
EP0065405A3 (en) Improved torch useful in air carbon arc processes
JPS56151191A (en) Method and apparatus for working by laser beam
JPS6418583A (en) Method for welding al plate or the like
US5208440A (en) Plasma arc cutting of conductive and non-conductive materials
JPS6475175A (en) Method and device for plasma cutting
JPS5756175A (en) Spot welding method for aluminum alloy
US4073640A (en) Method of melting slag
JPS5395155A (en) Starting method for arc welding
AU1282000A (en) Improved welding apparatus and method
JPS57168777A (en) Method and device for arc generation
BG101072A (en) Method and furnace for making a molten product
JPS5680377A (en) Welding method of thin sheet
GB2061163A (en) Method of and an apparatus for marking metal objects
JPS574261A (en) Plasma jet melt-spraying torch
ES8200033A1 (en) Gas-shielded arc welding employing two separately supplied gases
JPS55139175A (en) Two-electrode mig welding method
ES372769A1 (en) Improvements in or relating to methods of coating
JPS5548474A (en) Plasma arc welding unit
ES8202468A1 (en) Method of cooling the tip of an electrode utilized to produce an arc discharge.
Franz et al. Development of a High Productivity Gas Metal Arc Welding Technology--Technology and Quality