Title:
PRODUCTION OF THIN-WALLED SEAMLESS RING AND THIN-WALLED SEAMLESS RING
Document Type and Number:
Japanese Patent JPH09141364
Kind Code:
A
Abstract:
To obtain a thin-walled seamless ring with a remalably easy method.
A work composed by laminating plural numbers of plates of metal protect materials being thicker than the thickness of a metal blank on upper and lower faces of the thin sheet of metal blank is deep-drawn and formed in a bowl like by a press machine A, after the metal protect materials 12', 13' are separated from the obtained forming product W', a bowl like metal blank 11' is taken out, a drum part of the bowl like metal blank 11' is sliced in a proper width dimension and the thin-walled seamless ring is obtained.
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Inventors:
OKADA KENJI
Application Number:
JP30455195A
Publication Date:
June 03, 1997
Filing Date:
November 22, 1995
Export Citation:
Assignee:
OKADA KANAGATA KK
International Classes:
B23P13/04; B21D53/16; (IPC1-7): B21D53/16; B23P13/04
Attorney, Agent or Firm:
Hiroshi Ohama
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