Partially thick-walled elongated metallic member and methods...

Details Partially thick-walled elongated metallic member and methods... Partially thick-walled elongated metallic member and methods...

B - Operations, Transporting

21

C

B21C 37/16 (2006.01) B21D 39/04 (2006.01) B21J 5/08 (2006.01) B21J 9/08 (2006.01) E04B 1/24 (2006.01)

Patent

CA 2139829

A method of and an apparatus for manufacturing an elon- gated metallic member (1) having at least one thickened wall area defined at a portion thereof. That portion of the elongated metallic member (1) is heated to a plasticizable temperature to form a heated area (5) while the latter is moved along the metallic member (1) and, at the same time, axially inwardly compressed to allow upsetting at the heated area (5), to thereby form a thickened wall area. A trailing portion (1a) of the thickened wall area of the elongated metallic member (1) immediately after the heated area (5) is cooled. The ratio (V/W) of a compressing speed V relative to the moving speed W of the position of the heated area (5) in reference to the thickened portion (1a) of the metallic member (1) is progressively increased from a small value, em- ployed at an initial stage of wall thickening, along the metallic member (1) to an aimed value, employed at a steady stage of wall thickening, to thereby progressively increase a wall thickening ratio along the metallic member (1) to a designed value. The subsequent wall thickening is carried out while the ratio is maintained at said designed value for the steady stage of wall thickening. A method of connecting two metallic members (1) in end-to-end fashion and a method of connecting a beam to the metallic member (1) are also disclosed.

Affiliated with

Also associated with

Rating

Partially thick-walled elongated metallic member and methods... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Partially thick-walled elongated metallic member and methods..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Partially thick-walled elongated metallic member and methods... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1416511