Physical Properties of Sintered Stainless Steel 17-4PH Micro-Part Processed by MicroPowder Injection Molding

Micro-powder injection molding (μPIM) is a modification of powder (PIM) process and globally recognized manufacturing route that can be used largely to produce sophisticated micro-sized components using wide range metals ceramics. The demand μPIM currently increasing in various applications telecommunication, electronics, aerospace, biomedical, automotive industries. In this research work, sintering at three different temperatures between 1250 °C 1350 heating rate 10 °C/min with dwelling period 3 h on micro-injection molded debound (solvent thermal) stainless steel 17-4PH (SS 17-4PH) was carried out. After the operation, defect-free SS micro-specimens were achieved. relative density, which referred as an important physical property micro-parts, increased substantially from 95.3% 97.5% when temperature enhanced °C. maximum shrinkage 12.9% observed specimens completion process, findings revealed micro-parts produced successfully grounds employing feedstock loading 69 vol.%.