Annular hole cutter

Details Annular hole cutter Annular hole cutter

1992-08-11

1993-09-21

Bishop, Steven C.

Cutting by use of rotating axially moving tool

Tool or tool with support

Having axial, core-receiving central portion

761081, 408703, B23B 5104

Patent

active

052463184

ABSTRACT:
A tipped annular hole cutter is made by brazing all the cutting tips (30) simultaneously to the cylindrical wall (12) of the cutter body. The tips (30) have outer and inner lands (32, 34) which locate against the outer and inner surfaces (52, 54) of the cylindrical wall (12). This accurately locates the tips radially during brazing. The radially inner face (46) of the tip (30) is inclined so as to define an inner clearance face which has the necessary circumferential and radial clearances without therebeing any need to grind the inner face (46) after brazing.

REFERENCES:
patent: 3610768 (1971-10-01), Cochran
patent: 4208154 (1980-06-01), Gundy

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