Metal deforming – By use of tool acting during relative rotation between tool... – Tool orbiting or rotating about an axis
Patent
1978-05-01
1980-09-02
Larson, Lowell A.
Metal deforming
By use of tool acting during relative rotation between tool...
Tool orbiting or rotating about an axis
72369, 72398, 72122, 113116UT, B21D 314
Patent
active
042200288
ABSTRACT:
Method of producing tube bends of a given diameter and substantially uniform wall thickness from a straight tube having a diameter smaller than the given diameter, which includes re-shaping at least one end of the straight tube with a work-tool to form tangentially directed cylindrical leg extensions of equal tube bend cross section.
REFERENCES:
patent: 816451 (1906-03-01), Forwood
patent: 2740455 (1956-04-01), Veatch
patent: 3335485 (1967-08-01), Russo
patent: 3919875 (1975-11-01), Maev et al.
Breidenbend Anton
Haberstock Egon
Koser Rolf
Wonderschutz Manfred
Larson Lowell A.
Lerner Herbert L.
Sidro GmbH & Co. Ludwig Moller
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