Self-cleaning high speed boring tool

Details Self-cleaning high speed boring tool Self-cleaning high speed boring tool

1985-09-26

1987-04-07

Sipos, John

Cutting by use of rotating axially moving tool

Tool or tool with support

Having stepped cutting edges

408 61, 408230, 408713, 409137, B23D 7702, B27G 1500

Patent

active

046556508

ABSTRACT:
The invention pertains to a self-cleaning high speed core boring tool for enlarging an existing deep hole. The elongated tool includes a shank held within a rotating tool holder, a central portion upon which cutting elements are mounted in diametrically located relationship, and the forward end of the tool comprises a cylindrical extension having a pair of spiral flutes defined therein each of which communicates with a cutting element for receiving chips. The flutes spiral in a direction opposite to the direction of tool rotation during boring whereby chips received within the flutes are displaced forwardly of the cutting elements to keep the cutting area free of chips.

REFERENCES:
patent: 2283491 (1942-05-01), Daley
patent: 2334795 (1943-11-01), Smith
patent: 2599887 (1952-06-01), Beese
patent: 3213716 (1965-10-01), Getts
patent: 3333489 (1967-08-01), Mossberg
patent: 3963366 (1976-06-01), Eckle et al.
patent: 4096771 (1978-06-01), Monro
patent: 4340327 (1982-07-01), Martins

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