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Title

IDENTIFYING PROCESS DAMPING OF TURNING PROCESS USING TIME SERIES ANALYSIS

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Abstract

 In most simulations conducted by researchers in the TURNING PROCESS, damping of system is considered from modal analysis. Indeed, in these studies the contact of the tool with the workpiece is not taken into account that can be reduced the accuracy of the simulation. In this paper, the PROCESS DAMPING of the TURNING PROCESS is defined by using TIME SERIES ANALYSIS. The recommended method is based on comparison with the CORRELATION DIMENSION of the simulation to experiment of displacement signal in the feed direction. Therefore, the variation of PROCESS DAMPING based on variations feed and spindle speed is calculated. The results simulation of displacement of tool in feed direction in MATLAB software against displacement of tool in experiments, indicate significant accuracy of the proposed method in determinig displacement the tool in the TURNING PROCESS. The results of suggested approach can be used for predicting surface roughness of the manufactured workpiece by using TURNING PROCESS.

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