The mechanics of the tapping process by cutting have been investigated by means of a mathematical model that predicts the magnitude of torque and the parameters that influence torque variation. The analysis is based on an extension of the plane deformation model developed by Armarego for triangular groove cutting. Experimental analysis shows that additional contributions to torque exist that are not required for material removal alone. When these contributions are accounted for or are eliminated, the model provides an adequate torque prediction and responds properly to pertinent tapping parameters.
Issue Section:Research Papers
Topics:Cutting, Torque, Deformation, Experimental analysis
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