Method for infrared inspection of resistence welds during assemb

Details Method for infrared inspection of resistence welds during assemb Method for infrared inspection of resistence welds during assemb

1998-08-19

1999-10-19

Mills, Gregory

Electric heating

Metal heating

For bonding with pressure

2191171, B23K 1125

Patent

active

059683767

ABSTRACT:
The invention is a method of forming and evaluating a weld (52). In an initial step, first and second welding electrodes (56, 60) are placed against corresponding first and second contact surface areas (57, 61) on a pair of adjoining metal parts (44, 40). A welding level of electric current is directed between the electrodes (56, 60) to form an electrical resistance weld (52) between the metal parts (44, 40). The first electrode (56) is then removed from the first contact surface area (57). A subsequent step includes sensing surface temperatures at the first contact surface area (57) by sensing infrared radiation emitted from the first contact surface area (57) under the influence of heat previously generated resistively by the welding level of electric current. The resistance weld (52) is evaluated by comparing the sensed surface temperatures with specified surface temperatures corresponding to specified weld conditions.

REFERENCES:
patent: 2263740 (1941-11-01), Sample
patent: 4168430 (1979-09-01), Denis et al.
patent: 4214164 (1980-07-01), Traub et al.
patent: 4365307 (1982-12-01), Tatsuwaki et al.
patent: 4481418 (1984-11-01), Vanzetti et al.
patent: 4532404 (1985-07-01), Boillot et al.
patent: 4620799 (1986-11-01), Palazzetti et al.
patent: 4663513 (1987-05-01), Webber
patent: 4696101 (1987-09-01), Vanzetti et al.
patent: 4782230 (1988-11-01), Heinzel
patent: 4806723 (1989-02-01), Beynon et al.
patent: 4854724 (1989-08-01), Adams et al.
patent: 5283416 (1994-02-01), Shirk
patent: 5360960 (1994-11-01), Shirk
patent: 5651903 (1997-07-01), Shirk
patent: 5787563 (1998-08-01), Jenkins et al.
Copending U.S. Patent Application Serial No. 08/921,723, filed Aug. 29, 1997, entitled "Method of Assembling an Igniter."

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