Cutting tool

Details Cutting tool Cutting tool

1992-02-24

1993-03-16

Bishop, Steven C.

Cutters, for shaping

Including holder having seat for inserted tool

407 8, 407102, B23B 2716

Patent

active

051939452

ABSTRACT:
A cutting tool having a positioning block inserted between the cutting insert and the insert-receiving seat is disclosed. The disclosed cutting tool demonstrates excellent resistance to damage by severe vibration caused by the milling process. The cutting tool of the present invention comprises (a) a tool body having a recess formed at a forward end thereof and defining a insert-receiving seat; (b) a cutting insert; (c) a positioning block to be placed between the cutting insert and said insert-receiving seat, having a top and bottom faces and having a hardness thereof which is lower than that of a surface of an insert-receiving seat; and (d) clamp means for securing the cutting insert and the positioning block on the insert-receiving seat. The above described positioning block is able to absorb some extent of vibration of the cutting insert during the milling process. According to the present invention, there is also provided the cutting tool in which a positioning block has two layers. A hardness of a surface of the insert-receiving seat is higher than that of the first layer but is lower than that of the second layer.

REFERENCES:
patent: 1713273 (1929-05-01), Farrington
patent: 2704881 (1955-03-01), Barrett
patent: 3800380 (1974-04-01), Cline et al.
Soviet Patents Abstracts, Derwent, Sec. PQ, Week 8630, & SU A 1,199,468 Dec. 1985 English Abstract.

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