17-4 PH stainless steel is known to provide an attractive combination of high strength and
corrosion resistance. In this research, the feasibility of SFF fabrication of high density parts using
PH powder is examined. A part can be fabricated using both indirect and direct methods.
The indirect method includes making a negative RTV mold, making compounded material using
ECG binder and stearic acid with the metal powder, and pouring the compounded material to get
a green part. This is followed by binder bum out(BBO) and sintering cycles. The direct method
uses Fused Deposition of Metals(FDMet). In FDMet, the 17-4PH powder is compounded with a
binder and extruded into filaments, followed by part building, BBO and sintering. The initial
results of the indirect method of fabrication produced 91 % theoretical density of 17-4 PH parts
with Vickers hardness of 223Mechanical Engineerin
