A Novel Model Developed for Frictional Characteristics Analysis of Axial Symmetric Parts

Friction during contact between metals can be very complex under dynamic conditions. In this study, friction 304 stainless steel and SKD11 with boundary lubrication was studied experimentally using a testing machine (MPX-2000). The coefficients at different sliding speeds interface loads were determined, new coefficient model established based on the experimental data. sample surfaces analyzed laser-scanning microscope, it found that mechanism (where 0.1 < μ 0.3) mainly abrasive wear accompanied by slight adhesive wear. developed applied for simulation of Axial Symmetric U-Bend parts finite element methods, results compared stamping experiments. prediction errors in thickness springback angle showed had good agreement distribution to experiments less than 10% error, angles measurements 6.86% 5.13%. show decreases rise speed when is 30 mm/s–50 mm/s; increase load. A decreasing trend gradually slows down load 2.0 MPa–4.0 MPa. This also agrees simulations model.