Pipe bending machine with bending mandrel

Details Pipe bending machine with bending mandrel Pipe bending machine with bending mandrel

1983-10-14

1985-09-03

Combs, E. Michael

Metal deforming

With use of control means energized in response to activator...

Metal deforming by use of roller or roller-like tool element

72 32, 72150, B21D 905

Patent

active

045384363

ABSTRACT:
A pipe bending machine has a travelling carriage, a bending template, a bending mandrel arranged in a pipe to be bent near the bending template and having a mandrel rod, a cylinder-piston unit for withdrawing the mandrel, and a measuring device associated with the mandrel rod and arranged to actuate in the event of overloading of the mandrel rod a switch element so as to stop or eliminate the overloading of the mandrel or the mandrel rod.

REFERENCES:
patent: 2108746 (1938-02-01), Erichsen
patent: 2887914 (1959-05-01), Zeunert et al.
patent: 4380917 (1983-04-01), Uchida et al.

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