Boring tool

Details Boring tool Boring tool

1999-04-02

2000-10-03

Tsai, Henry W. H.

Cutters, for shaping

Including holder having seat for inserted tool

407100, 407103, 407115, B23B 2902, B23B 2716

Patent

active

061263656

ABSTRACT:
A boring tool includes a concave groove formed on the outer peripheral surface of a tool body on the side opposite from a cutting blade with respect to an axis of the tool body. The concave, groove 10 is formed so as to extend from a position x, which is separated rearwardly from a front end face of a head portion, toward the rear side, and to be open downward from above a rake face. Furthermore, a sub-groove is formed between the concave groove and a chip pocket. Accordingly, the natural frequency is increased by reducing the weight of the head portion while limiting rigidity reduction, thereby restricting chattering.

REFERENCES:
patent: 2127998 (1938-08-01), Jearum
patent: 3354526 (1967-11-01), Erkfritz
patent: 3656859 (1972-04-01), Rietzler et al.
patent: 4693641 (1987-09-01), Tsujimura et al.
patent: 5156503 (1992-10-01), Tsujimura et al.
patent: 5848862 (1998-12-01), Antoun

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