Tube forming

Details Tube forming Tube forming

1976-06-10

1977-07-26

Larson, Lowell A.

Metal deforming

By extruding through orifice

Utilizing internal forming means

72269, B21C 2502

Patent

active

040374548

ABSTRACT:
An unpierced metallic billet of relatively large diameter is subjected to three successive stages of deformation so as to form a metallic tube of relatively small outer diameter. In a first stage, the billet is given a generally "C"-shaped cross-sectional configuration. In a second stage, the diameter of the generally "C"-shaped cross-section is reduced and, simultaneously, the ends of the generally "C"-shaped cross-section are guided toward and then into contact with one another. In a third stage, the contacting ends are welded together. The three stages of deformation take place in a single die through which the billet is continuously hydrostatically extruded, the hydrostatic extrusion process utilizing a deoxidizing, lubricating, shear transmitting medium in displacing the billet through the die.

REFERENCES:
patent: 2698684 (1955-01-01), Guiney et al.
patent: 2723028 (1955-11-01), Carter

Affiliated with

Also associated with

Rating

Tube 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 Tube forming, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tube forming will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-718704