Abstract
This paper studies the influence of waste rubber binder on the properties of injection moulded 316L stainless steel. The new feedstock was formulated at volume fraction of 65% of metal powder and 35% of binder system. Powder with mean particle size of 45 μm was mixed with binder system and then successfully injection moulded. The samples were immersed in n-heptane for 5 hours at temperature of 60⁰C. Thermal debinding process was carried out to remove the remaining binders. The specimens were then sintered in vacuum condition at different temperature ranges of 1320⁰C to 1380⁰C. The properties of the sintered samples were evaluated. The sintered density recorded from 7.31 g/cm 3 to 7.62 g/cm 3 at 30 minutes and 60 minutes of soaking time. At temperature of 1360⁰C, the maximum tensile strength of 475.5 MPa attained and the highest hardness was obtained at 265 Hv. Keywords: waste rubber; injection moulded; feedstock; sintered density; tensile strength
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