Method and apparatus for cutting and notching a hollow pipe

Metal deforming – By tool-couple pressing together adjacent surface portions... – To form helically-seamed tube

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Details

72 72, 72 71, 72129, 72132, B21F 1100, B21C 3700

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active

056090552

ABSTRACT:
An apparatus for simultaneously cutting and notching a pipe includes an upper knife assembly having a pipe cutting knife and notch cutting knives with cutting edges adjacent a surface of the pipe and a lower knife assembly having a pipe cutting knife and notch cutting knives with cutting edges adjacent an opposite surface of the pipe. A method for cutting and notching a pipe includes stopping the axial and rotational movement of a pipe and moving the lower knife assembly into an overlapping relation with the upper knife assembly. The notch cutting knives are also moved into a cutting position and the axial and rotational pipe movement is resumed.

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