Method of bending metallic pipe

Details Method of bending metallic pipe Method of bending metallic pipe

1995-03-29

1996-09-17

Larson, Lowell A.

Metal deforming

Process

Tube making or reshaping

72466, B21D 915

Patent

active

055557627

ABSTRACT:
A filling material such as a fatty acid is filled into a metallic pipe in a molten state. The metallic pipe is then bent at a room temperature in a condition in which the filling material is solidified. After the bending work has been finished, the filling material is melted and discharged out of the pipe. The filling material may be a mixture of a fatty acid and a powdery additive.

REFERENCES:
patent: 3343250 (1967-09-01), Berto et al.
patent: 3756053 (1973-09-01), Hill et al.

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