Cutting by use of rotating axially moving tool – Tool of specific diverse material
Patent
1999-08-02
2000-05-09
Howell, Daniel W.
Cutting by use of rotating axially moving tool
Tool of specific diverse material
811762, 408226, 408230, 408713, B23B 5102
Patent
active
060594926
ABSTRACT:
A cutting tool assembly for rotary cutting operations comprising a replaceable cutting head and a tool shank, having a common longitudinal axis and mating peripheral surfaces. The cutting head has a cutting head mounting portion at a trailing end thereof and the tool shank has a cutting head receiving portion at a front face thereof. The cutting head mounting portion and the cutting head receiving portion of the tool shank each have at least two coupling portions bound by associated peripheral surfaces of the cutting head and the tool shank and mating in shape and dimensions. Each coupling portion has a base surface, a torque transmission wall and a fixation wall, the fixation wall of each cutting head coupling portion having an angular extension smaller than a corresponding angular distance between adjacent extremities of the fixation walls of two different tool shank coupling portions. The cutting tool is assembled by initially disposing the cutting head mounting portion in such a manner relative to the cutting head receiving portion as to insert the fixation walls of the cutting head coupling portions between the respective fixation walls of the tool shank coupling portions, and subsequently rotating the cutting head relative to the tool shank until the cutting head coupling portions fully overlie the corresponding tool shank coupling portions with their base surfaces and torque transmitting walls abutting each other and their fixation walls co-axially interacting in an interlocking male-female fashion, providing thereby the self-clamping of the cutting head on the tool shank.
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Howell Daniel W.
Iscar Ltd.
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