Title:
【発明の名称】容器の製造方法
Document Type and Number:
Japanese Patent JP2506326
Kind Code:
B2
Abstract:
The invention relates to a method of producing a bowl-like metal article, e.g. a half of a spherical rocket motor case made of a titanium alloy, by first shaping a flat blank into a bowl-like shape by a press forming operation and subsequently making heat treatment of the bowl-like work. Following the press forming operation, the shape of the bowl-like work is corrected by spinning. At the heat treatment a templet member is used to keep the bowl-like work in a restrained state so as to correct possible irregular straining and distortion of the work. Preferably the templet is a bowl-like member designed and disposed such that its outer surface comes into close contact with the inner surface of the bowl-like work by thermal expansion at the heat treatment. Both the thickness of the blank and the amount of machining on the heat-treated work can be reduced.
Inventors:
NAKANOSE MEGUMI
SOHARA YUTAKA
TANAKA HIROYUKI
HAMADA SHINSAKU
SOHARA YUTAKA
TANAKA HIROYUKI
HAMADA SHINSAKU
Application Number:
JP17219485A
Publication Date:
June 12, 1996
Filing Date:
August 05, 1985
Export Citation:
Assignee:
NITSUSAN JIDOSHA KK
HOTSUKAI TETSUKOSHO KK
HOTSUKAI TETSUKOSHO KK
International Classes:
B21D22/14; B21D22/30; B21D51/24; B23P9/02; B65D1/00; C21D9/00; (IPC1-7): B21D22/30; B21D22/14; B65D1/09
Domestic Patent References:
| JP4923761A | ||||
| JP52155122A |
Attorney, Agent or Firm:
Yutaka Oshio