Cutting by use of rotating axially moving tool – Tool or tool with support – Having peripherally spaced cutting edges
Patent
1992-03-13
1994-05-24
Howell, Daniel W.
Cutting by use of rotating axially moving tool
Tool or tool with support
Having peripherally spaced cutting edges
279 83, 408239R, B23B 5100
Patent
active
053142730
ABSTRACT:
The present invention relates to a cutting tool, especially the cutting tool having a head segment releasably attached to a shank segment. According to one aspect of this invention there is provided a cutting tool comprising: (i) a head segment rotatable around an axis thereof and a forward end portion having at least one cutting-insert receiving seat and a rearward end portion; (ii) a shank segment rotatable around an axis thereof having a forward end portion adapted to be coaxially joined with the rearward end of the head segment and a rearward end portion adapted to be fixedly secured to a machine spindle; (iii) an engaging hole coaxially formed on one of the above segments, which is provided with at least two internal threads communicating between the hole and the external surroundings through a peripheral surface of the segment; (iv) an engaging projection coaxially formed on other one of the segments and engagingly fitted into the hole; and (v) clamp screws respectively threaded through each internal thread, in which bottom ends of the clamp screws are contacted with a surface of the engaging projection.
REFERENCES:
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patent: 4871286 (1989-10-01), Hunt
patent: 5143495 (1992-09-01), Bosek
Nakayama Masaaki
Okawa Masayuki
Saito Junichi
Howell Daniel W.
Mitsubishi Materials Corporation
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