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Mathematical Modeling of Thermocurrent Parameters for Roughness Assessment in Turning

This paper presents three linear models which allow a real-time diagnosis of the roughness of turned surfaces through thermocurrent. The factorial designs combined with the regression techniques were applied. The work shows that the feed has the dominant effect among the cutting parameters on the surface roughness. It also demonstrates that the cutting speed and the feed exercise a pronounced influence on the thermocurrent, thereby assessing indirect but real-time the roughness of turned surfaces with some controlled cutting regimes.