Connection between the dynamic character of the cutting force and machined surface in abrasive waterjet machining

Abstract

In this paper are presented the results of research on the influence of traverse speed on cutting forces and machined surface in abrasive water jet machining. The results indicated that there is a strong connection between the dynamic character of the cutting force, that is, the appearance of peaks in the cutting force signal, with the appearance of irregularities and uncut parts on the machined surface. Also, the research showed that with the increase of the traverse speed, there is an increase in the mean value of the static component of the cutting force. Experiments have been performed through the measurement of the vertical component of the cutting force. Measurements have been performed on an Aluminium AlMg3 12 mm thick rod cut at traverse speeds from 900 to 1100 mm/min. Irregularities have been observed at cutting with higher traverse speeds, and appearance of the peaks in signals measured cutting force and the existence of a connection between them.