Machine tool for machining a workpiece by feeding a cutting tool

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364475, 364170, 318571, 408 3, 408 11, 408 12, 408 17, G06F 1546, B23B 4734

Patent

active

047046899

ABSTRACT:
A machine tool for machining a workpiece by feeding a cutting tool into the workpiece in a series of discrete steps wherein a constant value is stored for each of those steps, a calculation is performed responsive to the value of a variable factor affecting operation of the cutting tool, such as cutting tool diameter and/or workpiece material coefficient, to calculate for each of the discrete steps a feed value as a function of the corresponding constant value for that step and as a function of the value of that factor. Control means is provided for feeding the cutting tool into the workpiece as a function of the feed values thus calculated for a plurality of steps. Upon completion of feeding for any one step, the cutting tool is at least partially withdrawn from the workpiece and the cutting tool is subsequently feed into the workpiece as a function of the feed value of the next step.

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patent: 4597040 (1986-06-01), Buzies
patent: 4624607 (1986-11-01), Kato

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