Cutters – for shaping – Rotary cutting tool – Face or end mill
Patent
1991-04-10
1991-11-19
Smith, James G.
Cutters, for shaping
Rotary cutting tool
Face or end mill
407118, 408229, B26D 112
Patent
active
050661701
ABSTRACT:
Disclosed herein is a tool bit comprising a shank including a cylindrical base portion having an axis and a diameter, an elongated end portion of generally cylindrical shape and having an axis extending coaxially with the axis of the base portion, a diameter less than the diameter of the base portion, and an outer cylindrical periphery, which shank end portion includes therein a recess extending lengthwise of the end portion and being of right angle shape in a cross-section extending transversely of the end portion axis, which recess cross-section is defined by a long face extending in parallel spaced relation to a radius extending from the end portion axis and including an outer end at the cylindrical outer periphery and an inner end, and a short face extending from the inner end to the cylindrical outer periphery, and a connecting portion joining the end portion and the base portion and tapering from the base portion diameter to the end portion diameter, and a carbide insert brazed in the recess and having a transverse generally rectangular cross-section with a length extending along the short face and beyond the outer cylindrical periphery of the end portion, which carbide insert is sharpened to provide a cutting edge.
REFERENCES:
patent: 2930264 (1960-03-01), Louret
patent: 3857305 (1974-12-01), Lichtman
patent: 4412763 (1983-11-01), Shallenberger, Jr.
patent: 4525110 (1985-06-01), Stojanovski
patent: 4588331 (1986-05-01), Yoshinori
patent: 4593734 (1986-06-01), Wallace
patent: 4722644 (1988-02-01), Scheuch
Cruz Lawrence
Outboard Marine Corporation
Smith James G.
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