Method of production of cylindrical body

Details Method of production of cylindrical body Method of production of cylindrical body

1984-06-19

1986-12-16

Larson, Lowell A.

Metal deforming

Process

Tube making or reshaping

72 51, B21D 3902

Patent

active

046287205

ABSTRACT:
A method of production of a cylindrical body from a sheet of steel formed at opposite sides with projections and cutouts complementary to each other. The method comprises the steps of rolling the sheet of steel and inserting the projections in the cutouts to provide a cylindrical blank, and compressing at least one of inner and outer peripheral surfaces of the cylindrical blank in a radial direction to reduce the thickness of the cylindrical blank and to stretch a portion of the cylindrical blank in an axial direction whereby the projections inserted in the cutouts can be brought into intimate contact with each other at jointed portions.

REFERENCES:
patent: 1213684 (1917-01-01), Osterholm
patent: 2883738 (1959-04-01), Morrow
patent: 3594599 (1971-07-01), West

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