The effect of the size of the Si on mechanical properties of large suspension part in thixoforming process

Thixoforming 공정에서 Si의 크기가 대형 suspension 부품의 기계적 성질에 미치는 영향

In thixoforming process, the size of Si particles is changed by many parameters of forming. Especially, reheating and heat treatment are very important parameters. It was found that the mechanical properties was significantly improved by the thixoforming process. In this study, to investigate the relation between the mechanical properties and Si particles, the experiment of semi-solid die casting has been performed. Large suspension part with A356 alloy was fabricated with controlled ram speed. The effect of the size and shape of silicon particles on microstructure of tensile test has been investigated.