EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THE EFFECT OF PROCESS PARAMETERS ON THE EROSIVE WEAR OF DIE-CASTING DIES

This study investigates the causes and the mechanism of erosive wear i n die casting dies, which are commonly made of H-13 die steel, by cont rolled experiments and computer simulations, Experiments were carried out under actual production conditions for a range of process and geom etrical conditions with the accelerated erosive wear of core pins bein g used as a surrogate measure of die erosive wear, This paper reports the results of an investigation of the effect of metal velocity, inlet melt temperature, and the angle of metal impact on erosive wear in di e casting dies, The study shows that in die casting, the erosive wear profile exhibits a strong correlation with the impact velocity profile , the erosive wear rate increases with a decrease in the inlet melt te mperature, and the maximum erosive wear takes place at a metal impact angle of 72 degrees. This indicates that the primary driver of erosion in die casting is the impact of partially solidified metal or solid p articles at high velocities, with diffusion effects not being as criti cal.