Drill bit for drilling holes in composite fiber/resin laminates

Details Drill bit for drilling holes in composite fiber/resin laminates Drill bit for drilling holes in composite fiber/resin laminates

1981-07-20

1984-04-03

Kazenske, E. R.

Cutting by use of rotating axially moving tool

Tool or tool with support

Having peripherally spaced cutting edges

407 54, B23D 7714, B23B 4100, B26D 100

Patent

active

044405324

ABSTRACT:
A drill bit for drilling holes in laminates consisting of a matrix of plastic material incorporating graphite or glass fibers as used particularly in the aviation industry. The bit comprises cutting elements each of which presents a first straight sharp edge of very low conicity and positive rake and a second sharp edge having a convex curvature (FIG. 1).

REFERENCES:
patent: 693508 (1902-02-01), Fette
patent: 1069930 (1913-08-01), Down
patent: 2113178 (1938-04-01), Gase
patent: 2652083 (1953-09-01), Emmons
patent: 2887136 (1959-05-01), Rathgeber
patent: 3121351 (1964-02-01), Mount
patent: 4338050 (1982-07-01), Ozer et al.

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