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Title:
METHOD AND DEVICE FOR FORMING CYLINDRICAL MEMBER
Document Type and Number:
WIPO Patent Application WO/2017/199425
Kind Code:
A1
Abstract:
This method for forming a cylindrical member is characterized by including: a holding step for preparing a workpiece (W) having a cylindrical shape, and attaching the workpiece to a workpiece holding mechanism (120); a pressing step for pressing the workpiece from both the inner surface side and the outer surface side in mode wherein, while rotating the workpiece about a workpiece rotating axis (X), the inner surface and the outer surface of the workpiece are sandwiched between an inner pressing member (158) and an outer pressing member (138); and a forming step for relatively moving, in the direction along the workpiece rotating axis, the outer pressing member with respect to the inner pressing member, in a sate wherein the pressing in the pressing step is maintained.

Inventors:
OSHIMA, Atsushi (11-25 Osawa 6-chome, Mitaka-sh, Tokyo 71, 〒1818571, JP)
MOROSAWA, Mamoru (11-25 Osawa 6-chome, Mitaka-sh, 71, 〒1818571, JP)
Application Number:
JP2016/065013
Publication Date:
November 23, 2017
Filing Date:
May 20, 2016
Export Citation:
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Assignee:
JAMCO CORPORATION (11-25, Osawa 6-chome Mitaka-sh, Tokyo 71, 〒1818571, JP)
International Classes:
B21D22/14; B21D22/16
Attorney, Agent or Firm:
PATENT CORPORATE BODY DAI-ICHI KOKUSAI TOKKYO JIMUSHO (10-5, Shiba 4-chome Minato-k, Tokyo 14, 〒1080014, JP)
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