Title:
MANUFACTURE OF LIGHT ALLOY WHEEL
Document Type and Number:
Japanese Patent JP2753927
Kind Code:
B2
Abstract:
PURPOSE: To shorten the manufacturing time for a wheel made of a light alloy by forming a disk part by a metallic die, and also, pressurizing and spreading the outside peripheral surface corresponding to a rim by a forming roller.
CONSTITUTION: A disk part is formed by pressurizing a disk corresponding part 11 of a stock 10 to be worked, in a state that first metallic die 3a for allowing an outer rim and the outside surface of a disk part to conform to each other, and a second metallic die 3b for conforming to an inner rim and the inside surface of the disk part are rotated synchronously in the same direction. Simultaneously therewith, or thereafter, a rim part is formed by pressurizing and spreading a rim corresponding part 12 against the outside peripheral surface of these metallic dies by using a forming roller 4. In such a way, from the stock 10 to be worked, which can be subjected to plastic working, a light alloy wheel having a disk part having the rugged outside surface and a rim part continued to its outside peripheral can be formed integrally by decreasing the number of times of use of a metallic die, and also, shortening the time required for manufacture.
Inventors:
INATANI SHUJIRO
Application Number:
JP30734792A
Publication Date:
May 20, 1998
Filing Date:
November 17, 1992
Export Citation:
Assignee:
REIZU ENJINIARINGU KK
International Classes:
B21H1/04; B21D53/30; B21J9/02; B21K1/28; (IPC1-7): B21H1/04
Domestic Patent References:
| JPH032574A | ||||
| JPS5244307A | ||||
| JPS61226132A | ||||
| JPH02165835A |
Attorney, Agent or Firm:
Yoshihiro Sakagami