Cutters – for shaping – Including tool having plural alternatively usable cutting edges – With integral chip breaker – guide or deflector
Patent
1977-07-05
1979-07-03
Vlachos, Leonidas
Cutters, for shaping
Including tool having plural alternatively usable cutting edges
With integral chip breaker, guide or deflector
407116, 407118, B26D 100
Patent
active
041598857
ABSTRACT:
A cutting tool, preferably in the form of a cutting insert of hard material, having a narrow land area or ledge along the cutting edge, and a top surface recessed below the ledge, the recess being deep enough to cause a continuous chip cut from a workpiece by the cutting edge to naturally flow into the recess without interference such as to promote the formation of a false cutting tip build-up during use of the cutting tool, the cutting tip build-up resulting from the transfer of material from the chip to the ledge surface. The invention further contemplates favoring the formation of cutting tip build-up by forming the ledge with a concave section and, in addition or in the alternative, by providing a plurality of diamond particles embedded in the ledge surface at least at the cutting tip of the tool.
REFERENCES:
patent: 3344496 (1967-10-01), Patkay
patent: 3369283 (1968-02-01), Colding
patent: 3381349 (1968-05-01), Newcomer
patent: 3399442 (1968-09-01), Jones et al.
patent: 3850053 (1974-11-01), Bovenkerk
patent: 3882580 (1975-05-01), Lundgren
patent: 3973307 (1976-08-01), McCreery et al.
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