Electric heating – Metal heating – For bonding with pressure
Patent
1997-06-27
1999-04-20
Mills, Gregory L.
Electric heating
Metal heating
For bonding with pressure
219 93, 219 89, B23K 1130
Patent
active
058955844
ABSTRACT:
A guide pin of a movable electrode is inserted into a hole of a nut fed to an intermediate position between a fixed electrode and the movable electrode, and the movable electrode is then moved down together with the nut to position the nut on a portion to be welded of a workpiece overlying the fixed electrode. An air passage is formed inside of the guide pin. A plurality of air outlets are formed on the periphery of the tip of the guide pin. A pressurized air is supplied to the air passage and is then blown out of the air outlets, so that a blow of the pressurized air is given to the bottom surface of the nut thereby preventing fallout of the nut.
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Mills Gregory L.
Seki Kogyo Co., Ltd.
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