RT journal article
T1 Kerf Taper Defect Minimization Based on Abrasive Waterjet Machining of Low Thickness Thermoplastic Carbon Fiber Composites C/TPU
A1 Sambruno Ladrón de Guevara, Alejandro
A1 Bañón García, Fermín
A1 Salguero Gómez, Jorge
A1 Simonet, Bartolomé
A1 Batista Ponce, Moisés
A2 Ingeniería Mecánica y Diseño Industrial
K1 AWJM (Abrasive waterjet machining)
K1 CFRTP (Carbon fiber-reinforced thermoplastics)
K1 kerf taper
K1 RSM (response surface methodology)
K1 ANOVA (Analysis of variance)
K1 C/TPU (carbon/polyurethane)
AB Carbon fiber-reinforced thermoplastics (CFRTPs) are materials of great interest in industry.Like thermosets composite materials, they have an excellent weight/mechanical properties ratio and ahigh degree of automation in their manufacture and recyclability. However, these materials presentdi culties in their machining due to their nature. Their anisotropy, together with their low glasstransition temperature, can produce important defects in their machining. A process able to machinethese materials correctly by producing very small thermal defects is abrasive waterjet machining.However, the dispersion of the waterjet produces a reduction in kinetic energy, which decreases itscutting capacity. This results in an inherent defect called a kerf taper. Also, machining these materialswith reduced thicknesses can increase this defect due to the formation of a damage zone at thebeginning of cut due to the abrasive particles. This paper studies the influence of cutting parameterson the kerf taper generated during waterjet machining of a thin-walled thermoplastic compositematerial (carbon/polyurethane, C/TPU). This influence was studied by means of an ANOVA statisticalanalysis, and a mathematical model was obtained by means of a response surface methodology(RSM). Kerf taper defect was evaluated using a new image processing methodology, where the initialand final damage zone was separated from the kerf taper defect. Finally, a combination of a hydraulicpressure of 3400 bar with a feed rate of 100 mm/min and an abrasive mass flow of 170 g/min producesthe minimum kerf taper angle.
PB MDPI
SN 1996-1944
YR 2019
FD 2019-12
LK http://hdl.handle.net/10498/22333
UL http://hdl.handle.net/10498/22333
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 11-nov-2026