CONTROLE DE ESFORÇO DA FERRAMENTA PARA PROCESSOS DE USINAGEM: AUTO_FEEDRATE

por: Roberto Giani Pattaro Junior, Wallyson Thomas Alves da Silva, Amauri Hassui

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Ano: 2019

Instituições de ensino: SENAI, Universidade Estadual de Campinas, Universidade Estadual de Campinas

Idioma: Portugues

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Resumo

The machining process monitoring is presented as an alternative for increased productivity, finish quality and dimensional accuracy. In this project, the effective power of the spindle of the machining center during the drilling process was monitored, in order to change the cutting data automatically, increasing the efficiency of the machining. The importance of this monitoring is to preserve the fixation of the part in the device, as well as to guarantee the integrity and durability of the tool. The material used was automotive gray cast iron, which even has standardized hardness variations in certain regions of the part due to the formation of its crystalline solid structure. It is now possible to combine the features of the numerical control to solve problems of movement of parts in the fastening device due to the excessive stresses generated by the variation of hardness of the material. Such problems cause disruptions resulting in scrap, breakage, premature wear of the tool and possible product quality problems. An automatic advance control routine was developed, responsible for monitoring and altering the cutting data, without any variation in the main program's processing, eliminating possible machining problems. The results obtained in the experiment were satisfactory.


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