Title:
SPIN-MOLDING METHOD
Document Type and Number:
WIPO Patent Application WO/2018/012494
Kind Code:
A1
Abstract:
A spin-molding method comprising: a step for preparing a plate material (1) having a ring-shaped protrusion (13), which follows an outer peripheral edge, formed on a back surface (2), the plate material having a ratio of 0.7 or less between the thickness of the back surface at a reference position (20), where a portion facing the tip end of the protrusion is at least 45 degrees, and the thickness at the tip end of the protrusion; a step for rotating the plate material; a step for pressing a machining tool against a surface of the rotating plate member while moving the machining tool outward in the radial direction such that the machining tool moves from the inside of the protrusion to the upper part of the protrusion; and a step for locally heating the portion of the plate material pressed by the machining tool.
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Inventors:
IKAWA KEN
IMAMURA YOSHIHIDE
MIKAMI KOHEI
IWASAKI HAYATO
HIRAKAWA TAKEO
IMAMURA YOSHIHIDE
MIKAMI KOHEI
IWASAKI HAYATO
HIRAKAWA TAKEO
Application Number:
PCT/JP2017/025261
Publication Date:
January 18, 2018
Filing Date:
July 11, 2017
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
B21D22/14; B21D37/16; B21H1/00
Foreign References:
| JP2015208766A | 2015-11-24 | |||
| JP2015205306A | 2015-11-19 | |||
| JP2015202501A | 2015-11-16 |
Other References:
See also references of EP 3485993A4
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)
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