Method and apparatus for simultaneously boring and turning upset

Details Method and apparatus for simultaneously boring and turning upset Method and apparatus for simultaneously boring and turning upset

1979-03-14

1981-09-15

Vlachos, Leonidas

Cutting by use of rotating axially moving tool

Processes

Bit detachable

408 25, 82 2E, B23B 3500, B23B 5108

Patent

active

042894301

ABSTRACT:
The inside diameter and outside diameter of an upset pipe end are simultaneously bored and turned respectively by a combination tool. Boring and cutting elements on the tool are simultaneously disengaged from the pipe end in a controlled manner to taper out the cuts and permit rapid retraction of the tool without contacting the finished surfaces and possibly producing a scratch mark.

REFERENCES:
patent: 2486977 (1949-11-01), Peters
patent: 3010344 (1961-11-01), Christenson
patent: 3902386 (1975-09-01), Dressler et al.

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