Surface integrity and tool wear mechanism of 7050-T7451 aluminum alloy under dry cutting

摘要: Abstract In this paper, we present an experimental study on the effects of cutting parameters surface integrity and tool wear mechanism AA7050-T7451 aluminum alloy under dry cutting. We perform single-factor tests finite element simulations to observe how affect force, temperature, workpiece morphology, work hardening, residual stress, wear. The results show that three factors significantly roughness. Higher speeds lower feed rates can improve roughness, whereas depth does not make much difference Work hardening first increases then decreases with increasing speed rate, degree is negatively correlated depth. Residual stress occurs as a “ladle” changing parameters. Cutting rate considerably. maximum compressive layer 120 μm deep, subsurface tensile 300 μm deep. Tool typically involves abrasive low speed, adhesive medium oxidation high speed.