Electromagnetic dent puller

Details Electromagnetic dent puller Electromagnetic dent puller

1974-07-17

1976-12-21

Mehr, Milton S.

Metal deforming

By application of fluent medium, or energy field

By kinetic energy of fluid or field

29421M, 317151, B21D 2614

Patent

active

039980812

ABSTRACT:
An apparatus and method of electromagnetically pulling dents from conductive material. A coil is formed to direct an effective electromagnetic coupling to a limited area between the coil and a dented part. A nonconductive mold placed between the coil and part has openings to overlie the dent. The coil is first energized with a slowly rising current then is energized with a fast pulsing countercurrent to generate a strong pulling electromagnetic coupling.

REFERENCES:
patent: 3196649 (1965-07-01), Furth
patent: 3703958 (1972-11-01), Kolm
patent: 3704506 (1975-12-01), Orr
patent: 3810373 (1974-05-01), Quegrolx

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