Title:
カップ状部品の製造方法及び製造装置
Document Type and Number:
Japanese Patent JP5569495
Kind Code:
B2
Abstract:
A manufacturing method for a cup-shaped member including a corrugated portion includes a drawing step, a preliminary processing step, and a finishing step. In the preliminary processing step, at least preliminary large diameter portions in a preliminary corrugated portion are each formed to have a width larger than the size of each of the large diameter portions of the corrugated portion, thereby reducing an ironing resistance in the manufacturing of the cup-shaped member.
Inventors:
Nakajima 勲
Nakajima 將木
Atsushi Maeda
Nakajima 將木
Atsushi Maeda
Application Number:
JP2011215891A
Publication Date:
August 13, 2014
Filing Date:
September 30, 2011
Export Citation:
Assignee:
AISIN AW CO., LTD.
International Classes:
B21D22/30; B21D17/02; B21D17/04
Attorney, Agent or Firm:
Patent business corporation あいち international patent firm