Method of forming coated steel sheet

Details Method of forming coated steel sheet Method of forming coated steel sheet

2005-12-27

2009-10-06

Ross, Dana (Department: 3725)

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

C072S350000

Reexamination Certificate

active

07596980

ABSTRACT:
A method for forming a container half (10) from a coated steel sheet (21) is provided. Because a first planar part (27) at an outer peripheral part of a first formed body (26) provided through a first drawing step is held by a blank holder (33) during its bending to provide an L-shaped cross-section part (36) in a second drawing step, no wrinkles will develop at a vertical part (38). Because an unnecessary outer part (44) of a flange part (46) is cut off in a trimming step, the width of the flange part is narrowed. By virtue of the narrowed width, no wrinkles will develop during bending of the flange part.

REFERENCES:
patent: 3851366 (1974-12-01), Jacobs
patent: 4962659 (1990-10-01), Imazu et al.
patent: 5211047 (1993-05-01), Kaneyuki
patent: 5987951 (1999-11-01), Saunders
patent: 02-015834 (1990-01-01), None
patent: 07-314068 (1995-12-01), None
patent: 2004-230440 (2004-08-01), None
patent: 2004-298906 (2004-10-01), None

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