Method for the inner profiling of tubes or pipes

Details Method for the inner profiling of tubes or pipes Method for the inner profiling of tubes or pipes

1994-07-14

1996-06-11

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

With tool surface orbiting around axis parallel to direction...

72 96, B21B 1912

Patent

active

055244670

ABSTRACT:
The invention relates to a method for the better utilization of the working width of a profiling stone in the inner profiling of heat exchanger pipes. The press on width of the revolving roller bodies is substantially narrower than the profile width of the profiling stone so that in this area the profiling stone is worn out rapidly while the other area remains unworn since it is not utilized. In order to avoid this, the invention suggests that the press on rollers and the profiling stone is moved within the range of the working width of the profiling stone axially back and forth so that the entire profile range of the profiling stone can be utilized.

REFERENCES:
patent: 4373366 (1983-02-01), Tatsumi
patent: 4864836 (1989-09-01), Ochiai

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