Method of manufacturing tubular member having integral exterior

Details Method of manufacturing tubular member having integral exterior Method of manufacturing tubular member having integral exterior

1995-04-07

1999-03-16

Larson, Lowell A.

Metal deforming

Process

Tube making or reshaping

7237014, 723912, B21C 3715

Patent

active

058815953

ABSTRACT:
A tubular member having integral exterior protrusions is manufactured by providing a hollow element, for example by extrusion, having therein an axially extending interior defined by a surrounding wall having a thickness varying circumferentially. Such hollow element is positioned within a die that has therein lateral voids. The hollow element within the die is subjected, at the interior thereof, to an axially sequential deformation, for example by sequential penetration through the interior by a mandrel. This results in a non-elastic flow of the material of a thicker portion of the wall in lateral directions thereof into the voids in the die. This results in the hollow element, being formed into a tubular member having on the exterior thereof solid protrusions.

REFERENCES:
patent: 3087362 (1963-04-01), Genier
patent: 3436948 (1969-04-01), Portal et al.
patent: 4598451 (1986-07-01), Ohki
patent: 4663812 (1987-05-01), Clausen
patent: 5022135 (1991-06-01), Miller et al.

Affiliated with

Also associated with

Rating

Method of manufacturing tubular member having integral exterior 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 manufacturing tubular member having integral exterior , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing tubular member having integral exterior will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-808384