Apparatus for the inner profiling of tubes or pipes

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

1996-06-05

1998-07-21

Larson, Lowell A.

Metal deforming

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

With metal deformation of different type

B21B 1500

Patent

active

057821216

ABSTRACT:
A pipe profiling machine improves the utilization of the working length of a profiling stone in the inner profiling of heat exchanger pipes. The press-on width of the revolving roller bodies, such as spherical, cylindrical, or barrel-shaped 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. The press-on roller bodies and/or the profiling stone are/is oscillated axially back and forth within the axial working length of the profiling stone so that the entire profile range of the profiling stone can be utilized and so that radially outwardly projecting stripes on the pipes are avoided even if spherical roller bodies are used.

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

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