Method and apparatus for optimizing single point machining opera

Details Method and apparatus for optimizing single point machining opera Method and apparatus for optimizing single point machining opera

1986-12-19

1988-07-26

Schmidt, Frederick R.

Turning

Process of turning

82 2B, 82DIG9, B23B 300

Patent

active

047592435

ABSTRACT:
In a single point machining operation, such as metal cutting on a lathe, the precession angle of lobes on a rotating workpiece is determined by measuring the frequency and changing phase of the cutting vibrations, and the stability of the machining operation is monitored by comparing the lobe precession angle to a predetermined range of values within which regenerative chatter may occur. Stability of the machining operation is maintained and productivity is optimized by controlling the crossfeed to maintain the lobe precession angle close to but outside of the predetermined range of values.

REFERENCES:
patent: 3504581 (1970-04-01), Weichbrodt et al.
patent: 3548648 (1970-12-01), Weichbrodt et al.
patent: 3550107 (1970-12-01), Thompson et al.
patent: 3604834 (1986-08-01), Thompson
R. A. Thompson, "A General Theory for Regenerative Stability" Proc. 8th North American Manufacturing Research Conference (NAMRC), SME, May 18-21, 198, Univ. of Missouri, Rolla, MO, pp. 377-387.

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