Electric heating – Metal heating – For bonding with pressure
Patent
1998-06-09
1999-11-02
Mills, Gregory
Electric heating
Metal heating
For bonding with pressure
219 911, 219 9123, 2191171, B23K 1125
Patent
active
059775084
ABSTRACT:
A resistance welding method in which a welding current is passed through a welding portion of a material to be welded in a condition that the welding portion is put in between a pair of electrodes, so that the welding portion is fused and welded by use of the resistance heating caused by conduction of the welding current under pressure applied between the pair of electrodes, characterized by comprising the steps of: measuring a welding width of the welding portion by the width measurement unit; calculating a reference welding height of the welding portion from the measured welding width on the basis of a predetermined reference welding sectional area of the welding portion; passing the welding current through the welding portion until the height of the welding portion reaches the calculated reference welding height; and displaying current-conduction time from the start to end of conduction of the welding current on the display unit.
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patent: 3876854 (1975-04-01), Andrew et al.
patent: 4577086 (1986-03-01), Needham et al.
patent: 4922072 (1990-05-01), Topel et al.
patent: 5645738 (1997-07-01), Cecil
patent: 5808260 (1998-09-01), Asakura et al.
Mills Gregory
Yazaki -Corporation
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