Contoured tool blades

Details Contoured tool blades Contoured tool blades

1986-10-29

1988-08-16

Schmidt, Frederick R.

Cutters, for shaping

Rotary cutting tool

Including holder having seat for inserted tool

407 40, 407 51, 407 63, 407114, B26D 112

Patent

active

047640596

ABSTRACT:
The invention discloses a rotary tool, for example a milling cutter, having a tool body 2 including at least one helical seating channel into which is brazed, bonded or clamped a cutting blade (8, 18, 30). The blade(s) is/are helical strips of high speed steel or tungsten carbide having a leading edge to cut a work piece. A leading face (10) of the blade has wave-form or castellated grooves to give an undulating or serrated leading edge so that the metal removed from the work piece is removed in small clips not in long lengths of swarf. In examples given, the grooves of the leading face are provided with stop ends (26) to act as a brazing or bonding key. An outer surface (36) of the blade may also be undulating, if required.

REFERENCES:
patent: 3117366 (1964-01-01), Castor
patent: 3409965 (1968-11-01), Fisher
patent: 3672017 (1972-06-01), Nielsen et al.
patent: 3775819 (1973-12-01), Ribich
patent: 4083643 (1978-04-01), Parone
patent: 4212568 (1980-07-01), Minicozzi
patent: 4215955 (1980-08-01), Lillie
patent: 4472093 (1984-09-01), Hamilton
patent: 4560308 (1985-12-01), Deller

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