Title:
SPINNING DEVICE AND SPINNING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/009457
Kind Code:
A1
Abstract:
Provided are a spinning device and a spinning method which, when forming a flange on a cylindrical base material, make it possible to easily form the flange while maintaining the wall thickness of the base material. This spinning device (1) comprises a flange forming unit (a second forming unit 7) which, while a base material that has a large-diameter part (91) and a small-diameter part (92) is being rotated relative thereto, presses and deforms the large-diameter part (91) in the direction of the central axis (O9) while contacting the outer periphery of the small-diameter part (92), thereby forming a flange (93) that projects in the direction away from the central axis (O9) on the large-diameter part (91).
Inventors:
TAKADA YOSHIAKI (JP)
Application Number:
PCT/JP2021/005434
Publication Date:
January 13, 2022
Filing Date:
February 15, 2021
Export Citation:
Assignee:
NIHON SPINDLE MFG CO LTD (JP)
International Classes:
B21D22/16; B21H1/18
Foreign References:
| JPH0270327A | 1990-03-09 | |||
| JP2014094384A | 2014-05-22 | |||
| JP2006159250A | 2006-06-22 | |||
| US2610304A | 1952-09-09 | |||
| JP2011115813A | 2011-06-16 |
Other References:
See also references of EP 4176988A4
Attorney, Agent or Firm:
KOMAI Shinji et al. (JP)
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