Force Data Acquisition Using Computer Process Monitoring

Abstract
This paper addresses the problem of calculating the optimum cutting conditions for a turned component made of a material for which the constants and exponents in the force equations are not available. The problem is solved by using an approximate method to calculate the cutting conditions for the first component in the batch, and monitoring the motor armature current-signals during machining of the first component in order to calculate the tangential and feed force components. In between the time required to unload the first component and load the second component, the system evaluates the constants and exponents in the force equations and uses them to calculate the optimum cutting conditions for the second and subsequent components in the batch. A comparison between the predicted and experimentally measured forces shows good agreement.

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