Metal Injection Moulding Powder Produced by High Pressure Water Atomisation

Abstract

Recent progress in metal injection moulding (MIM) technology has been remarkable and, as a characteristic parts manufacturing technology, it has succeeded in achieving a certain position. However, improvement of raw material powder quality and reduction of powder price are indispensable for further advances. To achieve these targets, Pacific Metals Co. Ltd is promoting the development of MIM powder production using high pressure water atomisation and has succeeded in mass production of suitable powders. These newly developed MIM powders consist of water atomised powders with low oxygen content and high tap density. In addition to stainless steel, which is the mainstream conventional MIM powder, low alloy steel powder for utilisation in the manufacture of automobile and machine parts has been successfully produced. The production technology used to make these MIM powders is described. PM/0790