Investigation on feed rate influence on surface quality in abrasive water jet cutting of composite materials, monitoring acoustic emissions

Abstract

The paper deals an experimental study on cutting composite materials (CFRP) using abrasive water jet cutting (AWJC) process. The influence of the feed rate on surface roughness is studied using acoustic emission (AE) monitoring. For monitoring the process two acoustic emission sensors was mounted, on the CFRP workpiece and on the cutting head. This monitoring technique has proved that, between process parameter (feed rate and amplitude of AE signal) is a clear connection. The surface roughness can be predicted using online monitoring with acoustic emission (AE).