Method of sequentially manufacturing hollow knock pins

Details Method of sequentially manufacturing hollow knock pins Method of sequentially manufacturing hollow knock pins

1996-01-23

1997-10-21

Crane, Daniel C.

Metal deforming

With cutting

By shearing tool-couple

72339, 72349, B21D 2832, B21D 2416

Patent

active

056784449

ABSTRACT:
A method of sequentially manufacturing a hollow knock pin avoids distortion due to the large forces of shearing. A rounded corner of a deep-drawn cup shape is supported closely both on the inside radius and on the outside radius by curved walls matched to the cup's surface. The bottom of the cup is punched out close to the rounded corner. Due to the close support, no distortion occurs during the shearing operation. The close support also permits the pin bore to be smoothed by plastic deformation of the metal, without elastic deformation of the lip adjacent to the rounded corner.

REFERENCES:
patent: 3348511 (1967-10-01), Cowles
patent: 3406554 (1968-10-01), Frankenberg
patent: 3413945 (1968-12-01), Bertoglio
patent: 4754908 (1988-07-01), Tanaka
patent: 4903878 (1990-02-01), Usami

Affiliated with

Also associated with

Rating

Method of sequentially manufacturing hollow knock pins does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of sequentially manufacturing hollow knock pins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of sequentially manufacturing hollow knock pins will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-998357