Metal working – Method of mechanical manufacture – Electrical device making
Patent
1986-11-10
1988-05-31
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
219 861, 2191171, 310 89, H02K 1514
Patent
active
047472057
ABSTRACT:
A method of producing a motor for electric motor comprises a step of forming a heat radiation fin by bending a rectangular metallic plate, a step of forming a dummy fin having electrical conductivity, a step of disposing the heat radiation fin and the dummy fin on the outer circumferential surface of a frame body which has been formed in a cylindrical form so as to be symmetrical with respect to the axial centerline of the frame body, a step of disposing upper and lower core electrodes in the frame body so as to be in contact with the inner circumferential surface of the frame body and to respectively oppose the heat radiation fin and the dummy fin, a step or respectively connecting movable and stationary electrodes to the heat radiation fin and the dummy fin, and a step of melt-bonding only the heat radiation fin to the frame body by projection welding.
REFERENCES:
patent: 2599045 (1952-06-01), Brolaski
patent: 4604512 (1986-08-01), Stacey
Welding Technique 1983 (Nov.) vol. 31, by Welding Technique ISSN, p. 90.
"Recent Welding Technique in USSR: A Report of the First Inquiry Commission on Technological Communication of Welding Technique of USSR (No. 2)", T. Nakamura.
Hall Carl E.
Mitsubishi Denki & Kabushiki Kaisha
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