Effects of Processing Parameters on Kerf Cutting Quality Following Abrasive Waterjet Slotting of Ti-6Al-4V/CFRP/Al7075 Stacks

Authors

Abeer Eisa, Production Engineering and Mechanical Design Department, Faculty of Engineering, Menoufia University, EgyptFollow
Abdulaziz Elshinawi, Production Engineering and Mechanical Design Department, Faculty of Engineering, Menoufia University, EgyptFollow
Mohamed Fattouh, Production Engineering and Mechanical Design Department, Faculty of Engineering, Menoufia University, EgyptFollow

DOI

10.70259/engJER.2024.861881

Abstract

Abrasive water jet machining (AWJM) presents a viable substitute to traditional machining methods for cutting straight kerfs in Ti-6Al-4V/CFRP/Al7075 composite stacks. This study investigated the influences of various process settings, namely the hydraulic pressure (P), traverse speed (V), and stand-off distance (SOD) on kerf characteristics, including the kerf geometry (W_k), taper angle (θ_K), roughness (R_a), and the material removal (MRR). The metal plates, including Ti-6Al-4V and Al7075, exhibited a positive taper angle, whereas the CFRP composite plate revealed a negative taper angle across all the cutting conditions. Additionally, the R_a of the Al7075 kerf wall ranged from 5.341 to 7.892 µm, which is greater than those of the Ti-6Al-4V and CFRP plates under identical cutting parameters. Based on the near optimal combination estimated using Taguchi analysis, it is predicted that the kerf quality characteristics of the stack configuration can be enhanced as follows: a 50.27% reduction in the θ_K of the CFRP layer, and improvements in R_a by 14.19% for the Ti-6Al-4V layer and 7.04% for the Al7075 layer. However, the analysis indicated a little improvement in the MRR of Ti-6Al-4V layer by 0.51%.

Recommended Citation

Eisa, Abeer; Elshinawi, Abdulaziz; and Fattouh, Mohamed (2024) "Effects of Processing Parameters on Kerf Cutting Quality Following Abrasive Waterjet Slotting of Ti-6Al-4V/CFRP/Al7075 Stacks," Journal of Engineering Research: Vol. 8: Iss. 6, Article 25.
DOI: 10.70259/engJER.2024.861881
Available at: https://digitalcommons.aaru.edu.jo/erjeng/vol8/iss6/25