JPS569080A - Spot welding method - Google Patents

Spot welding method

Info

Publication number
JPS569080A
JPS569080A JP8392079A JP8392079A JPS569080A JP S569080 A JPS569080 A JP S569080A JP 8392079 A JP8392079 A JP 8392079A JP 8392079 A JP8392079 A JP 8392079A JP S569080 A JPS569080 A JP S569080A
Authority
JP
Japan
Prior art keywords
expulsion
occurrence
current
welding
limit
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
JP8392079A
Other languages
Japanese (ja)
Other versions
JPS5843192B2 (en
Inventor
Yukio Kishie
Akira Kawanobe
Tatsuya Kachi
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.)
Mitsubishi Motors Corp
Original Assignee
Mitsubishi Motors Corp
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 Mitsubishi Motors Corp filed Critical Mitsubishi Motors Corp
Priority to JP54083920A priority Critical patent/JPS5843192B2/en
Publication of JPS569080A publication Critical patent/JPS569080A/en
Publication of JPS5843192B2 publication Critical patent/JPS5843192B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Resistance Welding (AREA)

Abstract

PURPOSE: To eliminate the occurrence of expulsion and let welding of stable quality be done by flowing electric current of more than the limit of the occurrence of expulsion and surface flash as initial current at the time when contact resistance exists between welding members and flowing slightly lower current in the next stage in spot welding.
CONSTITUTION: The plates 2, 2' to be welded are pressed by electrode tips 1, 1 and welding current is flowed to spot-weld the plates 2, 2'. In this case, before the inter- electrode voltage passes a peak, that is, when contact resistance persists, 10,000A is flowed as the high current above the limit of the occurrence of expulsion and surface flash. Next, when the passage of the voltage peak is detected, it is changed over to the slightly lower current below the limit of the occurrence of expulsion and surface flash, that is 8,800A being nugget-forming current. By this method, the nugget is gradually saturated, whereby the occurrence of expulsion is suppressed and the welding of stable quality is done.
COPYRIGHT: (C)1981,JPO&Japio
JP54083920A 1979-07-04 1979-07-04 spot welding method Expired JPS5843192B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54083920A JPS5843192B2 (en) 1979-07-04 1979-07-04 spot welding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54083920A JPS5843192B2 (en) 1979-07-04 1979-07-04 spot welding method

Publications (2)

Publication Number Publication Date
JPS569080A true JPS569080A (en) 1981-01-29
JPS5843192B2 JPS5843192B2 (en) 1983-09-26

Family

ID=13816031

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54083920A Expired JPS5843192B2 (en) 1979-07-04 1979-07-04 spot welding method

Country Status (1)

Country Link
JP (1) JPS5843192B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2702691A1 (en) * 1993-03-17 1994-09-23 Honda Motor Co Ltd Method of regulating a spot-welding current
US5406045A (en) * 1992-12-24 1995-04-11 Honda Giken Kogyo Kabushiki Kaisha Method of controlling welding current in direct-current resistance welding machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5406045A (en) * 1992-12-24 1995-04-11 Honda Giken Kogyo Kabushiki Kaisha Method of controlling welding current in direct-current resistance welding machine
FR2702691A1 (en) * 1993-03-17 1994-09-23 Honda Motor Co Ltd Method of regulating a spot-welding current

Also Published As

Publication number Publication date
JPS5843192B2 (en) 1983-09-26

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