Drill with cooling channel

Details Drill with cooling channel Drill with cooling channel

1984-01-25

1987-11-03

Bilinsky, Z. R.

Cutting by use of rotating axially moving tool

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

Including tool with duct

408144, 408230, B23B 5102, B23B 5106

Patent

active

047040556

ABSTRACT:
A drill is described having a metal bit carrier part on which a sintered metal bit is placed. The bit possesses at least one enclosed helical cooling channel which continues in alignment into a corresponding cooling channel in the bit carrier part. This drill is particularly characterized by very great mechanical and thermal stability, which is not adversely affected in any way by the system of cooling channels in the interior of the drill, so that the service life and cutting power of the drill can be greatly increased. These advantages apply both to twist drills proper and to single-lipped deep-hole drills, for which there is the particular advantage that the geometry of the drill head can be optimally adapted to the particular material to be processed.

REFERENCES:
patent: 2422994 (1947-06-01), Taylor
patent: 2555302 (1951-06-01), Cogsdill
patent: 2674908 (1954-04-01), Willingham
patent: 2935906 (1960-05-01), Andreasson
patent: 3040605 (1962-06-01), Andreasson
patent: 3073189 (1963-01-01), Daige
patent: 3359837 (1967-12-01), Andreasson
patent: 3555935 (1971-01-01), Dorrenberg
patent: 3606560 (1971-09-01), McClennan
patent: 3791660 (1974-02-01), Bostley
patent: 3912414 (1975-10-01), Fukura et al.

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