Cutting by use of rotating axially moving tool – Tool or tool with support – Having peripherally spaced cutting edges
Patent
1994-03-08
1995-09-26
Bishop, Steven C.
Cutting by use of rotating axially moving tool
Tool or tool with support
Having peripherally spaced cutting edges
408229, 408233, 408713, B23B 5102
Patent
active
054529719
ABSTRACT:
This Improved Rotary End Cutting Tool is a completely new concept in twist-drill theory, design, and method of construction. Which will revolutionize the rotary end cutting tool systems as presently known today; especially in larger drill (30) diameters. The new concept of an incurvate cutting-edge (38), purposely orchestrated and offset volumetric grooves (41) combined with a tapered residual core-area (50) in the forward conical forward-end, along with all other renovative improvements. Has virtually resolved drill-chatter, rapid dulling, poor centering, penetration, and even breakage; naming just a few from a list of problems inhabiting currently marketed twist-drills (30). With the overall combined improvements, being to extensive to list herein, having afforded a uniquely simple insert cutting-unit (47) displaying a fixed and removable version capable of equally performing as well as its one-piece counterpart twist-drill (30). Which has demonstrated being compatible with most all work-piece materials suitable for drilling; producing a more precisioned, near mirror-like, wall-finished hole in many materials drilled thereby. And near 4 times faster and 7 times longer production-time in comparison to a comparable-sized presently marketed twist-drill (30). Convincingly, a superior rotary end cutting tool in all elements of this Art; which overall, as stated, will revolutionize the rotary end cutting tool industry after introduction of its entirety.
REFERENCES:
patent: 4210406 (1980-07-01), Berry, Jr.
patent: 4222690 (1980-09-01), Hosoi
patent: 4381162 (1983-04-01), Hosoi
patent: 4400119 (1983-08-01), Clement
patent: 4556347 (1985-12-01), Barish
patent: 4594034 (1986-06-01), Maier
patent: 4856944 (1989-08-01), Reinauer
patent: 4950108 (1990-08-01), Roos
patent: 4961672 (1990-10-01), Lindberg
patent: 5011342 (1991-04-01), Hsu
patent: 5038642 (1991-08-01), Alverio et al.
patent: 5065647 (1991-11-01), Johnson
patent: 5088863 (1992-02-01), Imanaga et al.
patent: 5160232 (1992-11-01), Maier
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