Friction welding machine having an expanding mandrel backstop as

Details Friction welding machine having an expanding mandrel backstop as Friction welding machine having an expanding mandrel backstop as

1981-12-10

1983-11-15

Ramsey, Kenneth J.

Chucks or sockets

Socket type

Transversely oscillating jaws

279 2R, 279 1G, 269 481, 228 2, 409 62, B23B 3112

Patent

active

044151721

ABSTRACT:
An improved mandrel chuck for the backstop assembly of a friction welding machine holds a first interiorly lobed workpiece as a second rotating workpiece is displaced into forceful engagement therewith. The improved chuck comprises a main body portion, an end portion rigidly fixed to the main body portion, and an intermediate portion mounted between the main body portion and the end portion, all of the chuck portions having similar exterior lobes in a configuration which complements the interior lobes of the first workpiece. A hydraulic actuator rotates the intermediate portion relative to the main body and end portions to interiorly grip the first workpiece wherein one end of the first workpiece projects from and is proximate to the chuck end portion, whereby the chuck will not contribute to any outward bowing or distortion of the workpiece end.

REFERENCES:
patent: 2765175 (1956-10-01), Parker et al.
patent: 3963250 (1976-06-01), Flagg
patent: 4066270 (1978-01-01), Elkin

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