Abstract
Effect of fatty acid lubricant to metal powder on the metal powder injection molding was studied. Stearic acid, stearamide and stearyl alcohol were used as fatty acid lubricant of the metal compounds. Both the viscosity of the SUS304L compound containing of stearic acid and that of the compound containing of stearamide were lower than that of the compound containg of stearylalcohol. However, both the viscosity of the Cu compound containing of stearic acid and that of the compound containing of stearamide were higher than that of the compound containing of stearyl alcohol. It was confirmed by IR spectra that stearic acid was transformed to copper(II) stearete in the presence of Cu powder during the kneading process.
