Research on micro-cutting mechanism of CoCrFeNiAlX high-entropy alloy fiber–reinforced aluminum matrix composites

This study aims to investigate the micro-cutting mechanism of CoCrFeNiAlX short fiber–reinforced 7A09 aluminum matrix composites. By setting different material constitutive models, material failure, and evolution criteria for each reinforcing phase, orthogonal cutting simulations were conducted at four typical angles (0°, 45°, 90°, 135°). The effects of fiber angle, volume fraction, and Al element content on cutting forces, cutting temperatures, chip morphology, and residual stresses were investigated under different cutting parameters. Micro-cutting experiments were also conducted to verify the micro-cutting of CoCrFeNiAl0 fiber–reinforced aluminum matrix composites. The results show that the cutting depth is positively correlated with cutting forces, and the increase in cutting force is approximately 51