Title:
SEQUENTIAL SHAPING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/243055
Kind Code:
A1
Abstract:
In this sequential shaping method for shaping a metal plate W into a three-dimensional shape by pressing a rod-shaped tool T against the metal plate W and moving the rod-shaped tool T: the rod-shaped tool T, which is disposed on one side of the metal plate W, and a heating device H1 disposed on the other side of the metal plate W are used; a local range of movement of the rod-shaped tool T on the metal plate W is determined on the basis of a predetermined movement path and movement speed of the rod-shaped tool T; and the local range of movement is heated from a rear side for a certain period of time, and the metal plate W is shaped by means of the rod-shaped tool T, after which the metal plate W is shaped while successively performing heating corresponding to the next local range of movement continuous with the previous local range of movement, thereby heating and annealing a part subjected to plastic deformation by means of the rod-shaped tool T during the shaping step, and eliminating residual stress generated in the metal plate W, thereby increasing a shape-fixability of the shaped product.
Inventors:
IWASE TAKAKUNI (JP)
MIWA HIROTAKA (JP)
MIWA HIROTAKA (JP)
Application Number:
PCT/JP2022/024185
Publication Date:
December 21, 2023
Filing Date:
June 16, 2022
Export Citation:
Assignee:
NISSAN MOTOR (JP)
International Classes:
B21D22/18; B21D31/00
Foreign References:
| KR20110124557A | 2011-11-17 | |||
| CN113042618A | 2021-06-29 |
Attorney, Agent or Firm:
MATOBA, Motonori (JP)
Download PDF:
Previous Patent: AIR CONDITIONER
Next Patent: OPTICAL DEVICE, SCANNING METHOD, AND MOLDING DEVICE AND METHOD
Next Patent: OPTICAL DEVICE, SCANNING METHOD, AND MOLDING DEVICE AND METHOD