High performance cutting tools
OwnerJohn X. Rees, Edward M. Sybesmainventors
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Abstract
A high performance cutting tool for drilling complex holes in a work piece comprising a body having a shank for rotating the tool with a drilling machine, an intermediate flute portion having a plurality of straight flutes formed thereon, and a forward, nose portion. A unitary insert having a plurality of cutting edges formed thereon is received in a slot formed in the cutter tool so as to be driven thereby in a manner which permits cutting of a complex hole in a work piece when the cutting tool is rotated in the work piece.
Claims5
In a relatively large high performance cutting tool for forming complex holes in work piece such as an aluminum wheel, or the like;
- said tool having an elongated generally cylindrical body symmetrically formed about a longitudinal axis, said elongated body having a shank portion, an intermediate flute portion and a nose portion terminating in a tip, all said portions being formed about a longitudinal axis;
- said flute portion defining a pair of diametrically opposed straight sided flutes, said flutes together defining a pair of diametrically opposed deep groves;
- said nose portion and said flat portion together defining a slot, said slot extending inwardly from said tip of said nose portion along the longitudinal axis to a predetermined depth;
- means defining an elongated unitary cutter insert, said cutter insert being formed of a relatively flat carbide material, and having a plurality of cutting edges formed thereon, said cutting edges being angularly disposed with respect to one another;
- said insert being secured by brazing the same with tri-ply solder in said slot such that as said tool is rotated about its longitudinal axis, said cutting edges contact the work piece to form a complex hole therein.
Dependencies are inferred from the claim text.