Metal working – Method of mechanical manufacture – Gear making
Patent
1991-12-24
1993-08-24
Echols, P. W.
Metal working
Method of mechanical manufacture
Gear making
298933, 72 68, B21K 142
Patent
active
052377458
ABSTRACT:
A method of manufacturing a driver plate comprises the steps of swaging the outer peripheral portion of a disk-shaped raw material in the radial direction thereof using a swaging die so as to form the outer peripheral portion in a thick wall portion, holding the swaged material between an upper and a lower die and pressing the material through the upper and lower dies so as to form it into a dish-shaped blank, and pressing radially the thick-walled outer peripheral portion of the dish-shaped blank held between a support die disposed either on the outside or on the inside thereof and a gear tooth profile forming die so as to form gear teeth either on the radially outside or on the radially inside of the outer peripheral portion. As an alternative, gear teeth may be formed by cold rolling work or gear teeth cutting work using a gear hobbing machine or one of other gear teeth cutting machines.
REFERENCES:
patent: 659723 (1900-10-01), Williams
patent: 2654944 (1953-10-01), Wilson
patent: 5068964 (1991-12-01), Yabuno et al.
Echols P. W.
Kubota Iron Works Co., Ltd.
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