Title:
WORKPIECE PROCESSING METHOD AND PROCESSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/189149
Kind Code:
A1
Abstract:
The objective of the present invention is to enable the strength of a workpiece to be improved in order to make the workpiece less liable to break, and to reduce the size of a treatment furnace which performs solution heat treatment. A workpiece processing method includes: a section roll forming step of subjecting a flat plate shaped workpiece to forming to impart a prescribed cross-sectional shape thereto; a solution heat treatment step of subjecting the workpiece, after the section roll forming step has been performed, to solution heat treatment; a contour roll forming step of subjecting the workpiece, after the solution heat treatment step has been performed, to forming to bend the workpiece into an arcuate shape; and a stretch forming step of subjecting the workpiece, after the contour roll forming step has been performed, to forming to impart a curved shape, following a curved surface of a die (12), to the workpiece by bringing the workpiece (W) into contact with the curved surface and inputting a tension load to the workpiece.
More Like This:
Inventors:
YAMADA TAKESHI (JP)
KONO AKIRA (JP)
SUGAI ATSUSHI (JP)
MATSUNAGA YU (JP)
HOSHINO TAKESHI (JP)
HOSOI SHOTA (JP)
KONDO SUGURU (JP)
KAMATA SATOSHI (JP)
KONO AKIRA (JP)
SUGAI ATSUSHI (JP)
MATSUNAGA YU (JP)
HOSHINO TAKESHI (JP)
HOSOI SHOTA (JP)
KONDO SUGURU (JP)
KAMATA SATOSHI (JP)
Application Number:
PCT/JP2019/012809
Publication Date:
October 03, 2019
Filing Date:
March 26, 2019
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
B21D47/01; B21D5/08; B21D7/08; C22F1/04; C22F1/00
Domestic Patent References:
| WO2014097631A1 | 2014-06-26 | |||
| WO2014097631A1 | 2014-06-26 |
Foreign References:
| JP2016064426A | 2016-04-28 | |||
| JPS5713141A | 1982-01-23 |
Attorney, Agent or Firm:
FUJITA, Takaharu (JP)
Download PDF: