Title:
SPOT WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2014/002947
Kind Code:
A1
Abstract:
In order to provide a spot welding method capable of easily and reliably preventing the generation of splash and of expanding the range of currents suitable for spot welding without requiring complex control, this spot welding method is configured so as to join metal plates by: clamping the stacked section of two or more stacked metal plates with a pair of electrodes (1) at a load of 100 N or more; applying pressure around the electrodes (1) at a load, which is 5 - 1000% of the load due to the pair of electrodes (1), using a pressurizing member (2), which applies pressure on the stacked section in regions (a1), (a2), and (a3) that are 20% or more of the total outer circumference of the electrode (1) tips and for which the continuous regions (b1), (b2) and (b3) of the entire outer circumference of the electrode (1) tips that are not pressed are 30% or less (including 0%) of the entire outer circumference of the electrode tips; and passing welding current from the electrodes (1) to the stacked section.
Inventors:
MURAKAMI TOSHIO
Application Number:
PCT/JP2013/067243
Publication Date:
January 03, 2014
Filing Date:
June 24, 2013
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
International Classes:
B23K11/11; B23K11/24
Domestic Patent References:
| WO2012033040A1 | 2012-03-15 | |||
| WO2010140605A1 | 2010-12-09 |
Foreign References:
| JP2012011398A | 2012-01-19 | |||
| JP2008246538A | 2008-10-16 | |||
| JP2003236674A | 2003-08-26 | |||
| JP2012055941A | 2012-03-22 | |||
| JP2012055924A | 2012-03-22 | |||
| JP2009241086A | 2009-10-22 |
Other References:
See also references of EP 2868419A4
Attorney, Agent or Firm:
HAMADA Yuriko et al. (JP)
Yuriko Hamada (JP)
Yuriko Hamada (JP)
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