Title:
APPARATUS AND METHOD FOR CORRECTING DISTORTION OF WORK
Document Type and Number:
Japanese Patent JP2006320947
Kind Code:
A
Abstract:
To perform sufficient removal of distortion caused by heat treatment of a work.
An elastic member 13 such as a hard rubber is installed on a surface of a projected part 11 of a fixed die 3 and the work W is set so as to cover the elastic member 13. At this stage the work W has the distortion X caused by the heat treatment so that there is a gap S between the work and the elastic member 13 (a). A pair of movable dies 5, 7 on right and left sides are moved close to the work W and perform pressing and correcting of the work. By applying elastic deformation to the elastic member 13 taking a spring back of the work W after correcting into account (b), the distortion X can be removed (c).
Inventors:
KUDO KATSUHIRO
Application Number:
JP2005148086A
Publication Date:
November 30, 2006
Filing Date:
May 20, 2005
Export Citation:
Assignee:
NISSAN MOTOR
International Classes:
B21D1/14
Attorney, Agent or Firm:
Hidekazu Miyoshi
Iwa Saki Kokuni
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu
Iwa Saki Kokuni
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu
Previous Patent: ROLLING METHOD IN FINISHING MILL OF HOT ROLLING LINE
Next Patent: DIE CLAMPING APPARATUS AND FORMING MACHINE
Next Patent: DIE CLAMPING APPARATUS AND FORMING MACHINE