ABSTRACT:
In this paper, the titanium alloy powder of Ti-6Al-4V is mixed with binder 60wt% of palm stearin and
40wt% of polyethylene for metal injection molding (MIM) process. Injection molding parameters has
been optimized using Taguchi method of L27 (313) orthogonal array. Highest green density has been
identified as the green part quality characteristic or as an output for this study. Parameters optimized
are the injection pressure, injection temperature, powder loading, mold temperature, holding pressure
and injection speed. Besides those, interaction of the injection pressure, injection temperature and
powder loading were studied. The analysis of variance (ANOVA) is employed to determine the significant
levels (a) and contributions of the variables to the green density. Results show that the injection
pressure has highest significant percentage followed by injection temperature, powder loading and
holding pressure.