Electric heating – Metal heating – For bonding with pressure
Reexamination Certificate
2005-04-05
2005-04-05
Elve, M. Alexandra (Department: 1725)
Electric heating
Metal heating
For bonding with pressure
C219S078010
Reexamination Certificate
active
06875947
ABSTRACT:
The invention relates to a method of manufacturing a welding stud from a wire by cold-working and by hardening and tempering. The welding stud particularly serves to be welded to a workpiece by means of an electric stud welding method and consists of a mounting portion and a welding portion. According to the invention, the wire is first pre-treated by hardening and tempering and is then cold-worked in such a way that the mounting portion and the welding portion have different strengths.
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ASM Handbook, Glossary of Metallurgical Terms and Enginneering tables, 1979, p. 70.*
Repetitorium Des Ingenieurwissens, Werkstoffkunde und Werkstoffprufung by Prof. Dr.—Ing. Wilhelm Domke, 6., überarbeitete Auflage; Jan., 1976; Verlag W. Girardet Essen © 1964, 1966, 1969 1971, 1973 and 1975.
Jost Klaus E.
Sichtermann Kay
Elve M. Alexandra
Howard & Howard
Nelson Stud Welding, Inc.
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