Title:
【発明の名称】ドライブプレートの製造方法
Document Type and Number:
Japanese Patent JP2826913
Kind Code:
B2
Abstract:
A method of manufacturing a driver plate comprises the steps of swaging the outer peripheral portion of a disk-shaped raw material (1) in the radial direction thereof using a swaging die (5,6) so as to form the outer peripheral portion (1a) in a thick wall portion, holding the swaged material between an upper and a lower die (8,7) 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 (1a) of the dish-shaped blank held between a support die (12) disposed either on the outside or on the inside thereof and a gear tooth profile forming die (11) 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.
Inventors:
YAMANAKA NARIAKI
Application Number:
JP16900991A
Publication Date:
November 18, 1998
Filing Date:
June 14, 1991
Export Citation:
Assignee:
KUBOTA TETSUKOSHO KK
International Classes:
B21H5/00; B21D53/28; B21H5/02; B21J5/02; B21J5/06; B21K1/30; C23C14/20; (IPC1-7): B21K1/30; B21H5/00; B21J5/02; B21J5/06
Domestic Patent References:
| JP56117833A | ||||
| JP58159938A | ||||
| JP1186234A |
Attorney, Agent or Firm:
Tadashi Hamamoto (1 person outside)