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Title: An approach to torque and temperature thread by thread on tapping.
Authors: Pereira, Igor Cezar
Vianello, Pedro Ivo Alves
Boing, Denis
Guimarães, Gilmar
Silva, Marcio Bacci da
Keywords: Cutting temperature
Tool–chip thermocouple
Issue Date: 2020
Citation: PEREIRA, I. C. et al. An approach to torque and temperature thread by thread on tapping. The International Journal of Advanced Manufacturing Technology, v. 106, p. 4891-4901, 2020. Disponível em: <>. Acesso em: 10 mar. 2020.
Abstract: During internal threading, small alterations in cutting parameters, tool geometry, or process characteristics produce considerable effects on torque and temperature behavior. Understanding these effects is critical to the design and development of new taps. In this work, the torque behavior for a tap operation is evaluated as a function of the number of threads, tool manufacturer, and angle of the taper region of the tool. The chip–tool interface temperature was analyzed, considering the influence of cutting speed and number of threads. Experimental tests were carried out using M10x1.5 taps and cutting speeds of 10 m/min and 25 m/min. Taps with two different geometries were considered in this analysis. The results show a difference in the distribution of the torque along the threads of the conical part between the tools. The presence of adhered material increased the torque during the reverse stage. The torque during the reverse stage for a tap with a damaged tooth was approximately 50% of the torque during the cutting stage. The temperature showed an increase with the number of threads stabilizing between the fourth and fifth threads and increasing again in the sixth filled due to adhesion of workpiece material.
Appears in Collections:DEMEC - Artigos publicados em periódicos

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