Press working method including step of strengthening local porti

Details Press working method including step of strengthening local porti Press working method including step of strengthening local porti

1995-08-24

1998-04-07

Larson, Lowell A.

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

723792, B21D 2200, B21D 2221, B21C 3702

Patent

active

057351635

ABSTRACT:
A method of effecting press working on a blank, in which a local portion of the blank is strengthened prior to the press working, so as to achieve increased mechanical strength, due to structural transformation of the material of the blank, or by an embossing operation. The local portion is selected so that the blank exhibits improved formability and suffers from reduced fractures during the press working.

REFERENCES:
patent: 753248 (1904-03-01), Duff
patent: 1580931 (1926-04-01), Thackray
patent: 4413495 (1983-11-01), Peuhkurinen et al.
patent: 4503696 (1985-03-01), Roeder
Patent Abstracts of Japan, vol. 4, No. 99 (M-021), Jul. 16, 1980.
Patent Abstracts of Japan, vol. 14, No. 17 (C-675), Jan. 16, 1990.
Patent Abstracts of Japan, vol. 16, No. 346 (M-1286), Jul. 27, 1992.
Patent Abstracts of Japan, vol. 16, No. 277 (C-0954), Jun. 22, 1992.
European Search Report dated Mar. 5, 1996 (2 pages).
Communication dated Mar. 26, 1996 (1 page).

Affiliated with

Also associated with

Rating

Press working method including step of strengthening local porti does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Press working method including step of strengthening local porti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Press working method including step of strengthening local porti will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4529