An Investigation of Stainless Steel (316L) Material Produced with Different Powder Injection Pressure Systems
In this study, effect of the usage of hydrolic pressure or gas pressure in the production of 316L stainless steel by the powder injection molding on microstructure, hardness and densities of the samples were investigated. In the injection molding applied molding pressure, ratio of powder/binder, binder leacing time, sintering temperature were examined. Experimental works showed that the gas pressure system was observed to be more effective than hydrolic pressure system for each parameters. Experimental results also showed that the powder ratio in the feedstock and sintering temperature had dominant effect on hardness and microstructure of the samples. The leaching time of Polyethylene Glycol (PEG) 600 binder has been decreased with increasing molding pressure. Increasing hardness and density of samples were achiewed by increasing metal powder ratio. The increasing in hardness and density were also observed by increasing sintering temperature.
Keywords: Powder injection molding; Hydrolic pressure system; Gas pressure system; Debinding times; Sintering temperature; Powder/binder ratio.
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