Method for milling grooves in bored workpieces

Details Method for milling grooves in bored workpieces Method for milling grooves in bored workpieces

2008-03-25

2008-03-25

Cadugan, Erica (Department: 3722)

Gear cutting, milling, or planing

Milling

Process

C409S066000, C409S067000, C409S074000, C409S200000, C409S143000, C700S189000, C700S187000

Reexamination Certificate

active

11802934

ABSTRACT:
A numerical control unit issues a sequence of instructions for causing a spindle of a cutter disk in a tool machine to perform successive straight displacements approximating a spiral of Archimedes, with a predetermined angle step from one point to the next, and issues one or more ADIS instructions for merging each of the straight displacements with the next. The spiral path is such that the cutter disk will progressively shave a chip of a predetermined thickness over several revolutions, until its cutting edge is near the intended groove bottom. The tool is then caused to follow a merging path leading to a final point lying on the intended groove bottom, and finally is caused to follow a full circular path coaxial to the bore starting from the final point.

REFERENCES:
patent: 4381608 (1983-05-01), Thormann et al.
patent: 4704688 (1987-11-01), Kamata
patent: 4943191 (1990-07-01), Schmitt
patent: 5733078 (1998-03-01), Matsushita et al.
patent: 6293740 (2001-09-01), Schulte
patent: 2005/0246052 (2005-11-01), Coleman et al.
patent: 307823 (1989-03-01), None

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