METHOD FOR MANUFACTURING WELDED ARTICLE FROM DIFFERENT METALS, AND WELDING DEVICE

WIPO Patent Application WO/2019/044516

A1

The present invention employs a welded article manufacturing method comprising: a step (ST1) for supplying a first metal member E; a step (ST2) for supplying a second metal member D of which the temperature reaches the melting point earlier than the temperature of the first metal member E when the second metal member D is brought into contact with the first metal member E and current is applied between both metal members; a step (ST3) for preheating the first metal member E with high-frequency induced current; a step (ST4) for pressing the first metal member E and the second metal member D; a step (ST5) for applying current between the first metal member E and the second metal member D when the temperature of the first metal member E reaches a predetermined temperature TS4 owing to the preheating; and steps (ST4, ST5) for welding the first and second metal members E, D to each other by means of the pressing and the application of current. Consequently, the present invention provides: a method for manufacturing a welded article having a sufficient welding length even when metals, the temperature of one of which reaches the melting point earlier than the temperature of the other one of the metals at the time of welding by means of application of current, are welded to each other; and a welding device for welding such metals to each other.

KADOYA YASUO (JP)

PCT/JP2018/030393

March 07, 2019

August 16, 2018

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ORIGIN ELECTRIC (JP)

B23K11/20; B23K11/02; B23K11/36; B23K20/00

JPS5741891A	1982-03-09
JPS5272346A	1977-06-16
JPS63188484A	1988-08-04
JPS54159315A	1979-12-17
JPS61147980A	1986-07-05
JPS599014B2	1984-02-28

See also references of EP 3584028A4

MIYAGAWA, Teiji et al. (JP)

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