Process for manufacturing alternator pole piece

Details Process for manufacturing alternator pole piece Process for manufacturing alternator pole piece

1994-01-03

1995-07-04

Wyszomierski, George

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148121, 29598, H02K 1502

Patent

active

054296870

ABSTRACT:
The improved process of the present invention seeks to best manage the compromise between optimization of noise reduction, power output, magnetic permeability, strength of materials and center of gravity in the manufacture of an alternator pole piece. The inventive steps include hot forging, shot blasting, Parkerization, cold coining, a two step fully finishing step including a squeezing sub-step and a bending sub-step, and an annealing step. The inventive steps result in the manufacture of an alternator pole piece which facilitates quiet operation as well as high alternator output.

REFERENCES:
patent: 4223547 (1980-09-01), Epner
patent: 4558511 (1985-12-01), Kato
patent: 4589855 (1986-05-01), Ragaly
patent: 4759117 (1988-07-01), Kato
patent: 5016340 (1991-05-01), Kato
patent: 5296772 (1994-03-01), Bradfield et al.

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