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versão impressa ISSN 0012-7353


SINEIDER MARTINS, Felipe; REINA-MUNOZ, Rodrigo  e  MARTINS LIRA, Valdemir. System of cutting force data acquisition in mechanical lathes. Dyna rev.fac.nac.minas [online]. 2018, vol.85, n.207, pp.16-21. ISSN 0012-7353.

This report concerns a data acquisition system with the final idea of measuring the cutting force in the threading process done on a conventional lathe. Analytical models are used to find the depth of cut of the machining tool. This is important because the machining force can be responsible for the tool collapse by plastic edge deformation. The cutting force was obtained through direct measurements in selected samples. This allows obtaining more realistic data compared with data obtained by analytical estimation from theory. The data acquisition system was implemented in LabView®, and it allowed analyzing the several variables involved in the machining process on conventional lathes. In such a way, it is possible to find out, in real time, the depth of cut variable. Specifically, the authors present results obtained from analysis of Fredericks, Sandvik and Lira models. This analysis allows drawing conclusions about the cutting force from each model.

Palavras-chave : machining force; machining; data acquisition; depth of cut.

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