Abstract
Original research results of GFRP drilling, using HSS steel drill bit, pro-cess energy indicators were presented in the article. The research stand was a 5-axis DMU50 machining center, equipped with a Kistler force gauge with a signal ampli-fier and a DAQ data acquisition system. The obtained measurement data were pro-cessed using the force gauge manufacturer's software, a spreadsheet and the Statis-tica statistical data analysis package. As a result of the analysis, on the basis of tech-nological parameters and measured and determined values of cutting force and torque, changes in the values of selected process status indicators were determined; total and specific energy (per unit of material volume removed) generated when making individual holes as a function of the number of holes made. Moreover, the empirical value of the specific cutting resistance kc was determined. As a result of the experimental work carried out and the analysis of available literature in the scope of the article, conclusions were formulated regarding the energy indicators of the process – total and specific energy generated during processing, as well as possible causes of thermal damage to the processed material were indicated.
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