µscanMicroscopic Scanning Analysis of Carbonfiber Reinforced Plastics Cut by Abrasive Water Jet

  • Guilin Yang
Keywords: AWJ Cutting CFRP, Theoretical Analysis, Surface Quality, Microscopic Analysis

Abstract

The cutting test of carbonfiber reinforced plastics is carried out by the technology of ultra-high pressure abrasive
water jet, the distribution map of roughness is scanned by the  scan laser confocal microscope, and the
average value of surface cutting quality is calculated. The empirical cutting formula of abrasive water jet is
studied. The experimental results show that the average value of surface roughness decreases with the increase
of nozzle diameter, the average value of surface roughness increases with the increase of pump pressure, and the
surface roughness decreases with the increase of nozzle transverse speed. Through microscopic analysis of
average cutting quality values, the optimal parameter combination of abrasive water jet cutting carbonfiber
reinforced plastics is obtained: the standoff distance is 7mm, the abrasive flow rate is 5 g/s, the nozzle transverse
speed is 90 mm/min, the pump pressure is 320 MPa, and the nozzle diameter is 0.26 mm.

Published
2020-06-01