Disposable cutting insert for boring cutter

Details Disposable cutting insert for boring cutter Disposable cutting insert for boring cutter

2007-01-29

2008-10-07

Fridie, Willmon (Department: 3724)

Cutters, for shaping

Including tool having plural alternatively usable cutting edges

C407S114000, C407S115000

Reexamination Certificate

active

07431541

ABSTRACT:
A disposable cutting insert for a boring cutter can reduce the roughness of a cut surface and achieve a mirror-like surface effect. The disposable cutting insert has a long curved blade edge, and the radius vertex of the long blade edge is deviated slightly from an external side of a vertex of the radius of cutting edge. A short curved blade edge is formed between the radius arc vertex and the radius arc vertex of the cutting edge. The vertical distance of the short curved blade edge is greater than the feed rate. The cutting edge cuts the work piece and the short curved blade edge can scrape a small size of material precisely for scraping the peak cut by the cutting edge and lower the height of the peak, so as to lower the surface roughness, and produce a mirror-like surface for an internal periphery of a bored hole.

REFERENCES:
patent: 4131383 (1978-12-01), Powers
patent: 5536119 (1996-07-01), Werner et al.
patent: 5924824 (1999-07-01), Satran et al.
patent: 6843620 (2005-01-01), Inayama
patent: 7168512 (2007-01-01), Schuffenhauer et al.

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