Stud welder with magnetic follow-up

Details Stud welder with magnetic follow-up Stud welder with magnetic follow-up

1982-06-28

1984-08-14

Envall, Jr., Roy N.

Electric heating

Metal heating

For bonding with pressure

219 95, B23K 920

Patent

active

044659172

ABSTRACT:
A stud welder is provided with a pair of magnetic coils and a compression spring. One of the coils provides the lift to separate electrode held parts and start an arc therebetween. The other coil and the compression spring provide fast follow-up force driving the parts into reengagement to quench the arc and weld the parts together. The combined acceleration of the spring and the booster coil enables the welding of certain materials such as brass which were previously not weldable with stud welders.

REFERENCES:
patent: 2640133 (1953-05-01), Ainsworth et al.
patent: 2769080 (1956-10-01), Welch
patent: 2776362 (1957-01-01), Welch
patent: 2892068 (1959-06-01), Park et al.
patent: 3564191 (1971-02-01), Elzer et al.
patent: 4162388 (1979-07-01), Heider
Modern Welding Technology, Howard B. Cary, Prentice-Hall Inc., 1979, pp. 124-125.
"Percussion Welding", Welding Handbook, 6th Edition, Sec. 2, Chap. 27, edited by Arthur L. Phillips, published by American Welding Society, N.Y., 1969.
Instruction & Maintenance Manual Nelson NSA-80, Nov. 1970.
"Percussion Welding" R. F. Manning & J. B. Welch, Welding Journal, Sep. 1960, pp. 1-5.
"Percussion Welding", Metals Handbook, 8th Edition, vol. 6, Welding and Brazing, pp. 177-186.

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