Machine for flattening the internal bead of welded tubing

Details Machine for flattening the internal bead of welded tubing Machine for flattening the internal bead of welded tubing

1980-12-03

1982-10-12

Larson, Lowell A.

Metal deforming

By use of 'flying tool' engaging moving work

Including orbitally-moving tool-face

72370, 228125, B21C 3730

Patent

active

043532365

ABSTRACT:
A machine for removing the internal bead of longitudinal seam welded tubing by flattening includes a mandrel to be positioned within the tubing, an external hammer which includes a vertically oscillating roller which hammers the outside of the tubing opposite the weld so as to force the mandrel against the bead to flatten it and a second roller which serves as an anvil to restrain and shape the external surface of the tube including the weld to prevent the tubing from being deformed.

REFERENCES:
patent: 2600254 (1952-06-01), Lysobey
patent: 3877283 (1975-04-01), Hohl et al.

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