Why optical emission spectroscopy is the best choice for metal injection molding quality control

Since its first demonstration back in the 1930s, metal injection molding (MIM) has become an essential metal fabrication technique. MIM at a basic level is the formation of small metal shapes from a metal powder that is fused together. This enables highly complex shapes to be created with almost no waste – keeping costs and waste down. The final components are almost 100% dense, with higher strength than diecasting, better tolerances than investment or sand casting, and greater shape complexity than traditional machining techniques.

MIM has been a mainstream production technique since the 1970s, where it was used for dental orthodontic brackets, watch cases and firearms. Today, however, MIM technology is enabling the manufacture of complex components for high-performance applications, such as dental implants, artificial joints, pacemakers, and jet engines.

In this guide, Hitachi’s Dr. Maryam Beig Mohamadi, Application Scientist – OES, and Michael Molderings, Product Manager – OES, explain why optical emission spectroscopy is ideal for MIM process quality control.

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