Method of producing metal tubing

Details Method of producing metal tubing Method of producing metal tubing

1978-03-27

1979-11-13

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

72 85, B21D 2216

Patent

active

041738764

ABSTRACT:
A method of producing metal tubing, particularly thin-wall, large diameter metal tubing, by clamping one end of a tubular metal blank to a mandrel, rotating the mandrel and blank, and subjecting the blank to both axially and radial deforming pressures through a series of circumferentially spaced rollers to cause the metal of the blank to flow axially ahead of the rollers to reduce the wall thickness of the blank. To achieve the desired thin wall construction without rippling of the internal diameter, the ratio of linear feed of the tubular blank to rotational speed of the blank per inch of tube diameter is maintained in the range of 0.006 to 0.012.

REFERENCES:
"Tube Spinning" Metals Handbook 8th Ed. vol. 4, American Society for Metals, 1969, pp. 317-322.

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