Gun drill coolant bushing and method of making same

Details Gun drill coolant bushing and method of making same Gun drill coolant bushing and method of making same

1987-01-27

1989-02-14

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

With means to apply transient, fluent medium to work or product

408 59, 408 61, B23B 5106, B23B 4102

Patent

active

048043001

ABSTRACT:
As an alternative to the drilling of relatively long holes through a mass of material to provide a passage for fluid coolant the invention makes use of a laterally open elongated slot cut into the mass of material into which easily worked material is embedded to form the fluid passage. One alternative is to lay a preformed length of tube in the slot and secure the tube in place with an appropriate bedding mass. Another is to make use of a molding expedient, namely, packing the passage with a moldable material in which an elongated core is embedded and then removing the core to form the fluid passage.

REFERENCES:
patent: 2811875 (1957-11-01), Cogsdill
patent: 4588334 (1986-05-01), Khurana

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