Die cushion apparatus for hot stretch-forming

Details Die cushion apparatus for hot stretch-forming Die cushion apparatus for hot stretch-forming

2006-02-28

2006-02-28

Banks, Derris H. (Department: 3725)

Metal deforming

With means to drive tool

Including pneumatic- or fluid-actuated tool support

C072S344000, C072S350000, C072S351000, C072S456000, C384S009000, C384S057000, C384S905000, C029S434000, C029S254000, C029S254000, C029S254000, C029S254000, C029S254000, C100S315000

Reexamination Certificate

active

07004007

ABSTRACT:
A self-contained die cushion assembly for use in a stretch-forming process involving heated tooling. A lower plate is mounted below an upper plate that undergoes different thermal expansion than the lower plate. Guidance devices are mounted between the upper and lower plates and include a guide post, a bearing sleeve circumscribing the guide post, and a cylinder circumscribing the bearing sleeve. The guide post is mounted in fixed relation to the upper plate, and the cylinder is mounted in laterally translatable relation to the lower plate to accommodate lateral relative displacement between the upper and lower plates due to different thermal expansion thereof, thereby preventing binding of the guidance devices.

REFERENCES:
patent: 4732033 (1988-03-01), Smedberg et al.
patent: 6237381 (2001-05-01), Smedberg et al.
patent: 6804983 (2004-10-01), Mori et al.

Affiliated with

Also associated with

Rating

Die cushion apparatus for hot stretch-forming does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Die cushion apparatus for hot stretch-forming, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Die cushion apparatus for hot stretch-forming will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3671453