Method and means for cooling down a stationary twist drill by a

Details Method and means for cooling down a stationary twist drill by a Method and means for cooling down a stationary twist drill by a

1978-09-06

1980-07-22

Vlachos, Leonidas

Turning

Process of turning

82 34R, 82DIG1, 407 11, 408 61, B23B 100, B23B 2710

Patent

active

042133548

ABSTRACT:
Coolant is supplied through a main delivery line and a conduit bored in the toolholder by coolant pumps. The coolant then enters into a ring having two opposite ball jets from which it is simultaneously conveyed in two concentrated streams on to both the grooves of the twist drill. Each of the streams of the coolant is directed at the respective beginning portions of the grooves. The ring is rotatably set up on the toolholder and is adjustable in the required position. The ball jets are swingable and securable in the required position in the ring by retaining screws.

REFERENCES:
patent: 2857166 (1958-10-01), Conn et al.
patent: 3868195 (1975-02-01), Anderson et al.
American Machinist, Pub. Jun. 1, 1970 pp. 112 left column.

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