Method of and an arrangement for producing threads

Metal deforming – By use of tool acting during relative rotation between tool... – During rotation of work

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72104, B21H 304

Patent

active

045922217

ABSTRACT:
An axial thread roll head is used for producing threads on workpieces, arranged on a rotary disk of a numerically controlled automatic lathe and has two threaded rolls which, after rolling of a thread, are withdrawn in the same direction transversely to a workpiece with constantly retained opposite distance from the workpiece tangentially relative thereto.

REFERENCES:
patent: 1145661 (1915-07-01), Bailey
patent: 2011761 (1935-08-01), Handel
patent: 2576709 (1951-11-01), Affleck
patent: 2771799 (1956-11-01), Batchelder

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