Mim Metal Injection Molding Process

The fine metal powders used combine with higher sintering temperatures to allow mim to achieve near full density in the final article.

Mim metal injection molding process.

The complex parts just need to be shaped in one step during the whole process. The metal injection moulding mim process mim merges two established technologies plastic injection moulding and powdered metallurgy. Metal injection molding is a metalworking process in which finely powdered metal is mixed with binder material to produce a feedstock which is then shaped by injection molding. In the 1970s this process was developed to allow the processing of metal powders by raymond wiech in the us widely considered the inventor of the metal injection molding process.

The metal injection molding mim process starts with the compounding or feedstock preparation process. After molding the part undergoes conditioning operations to remove the binder and densify the powder. Metal injection molding mim process is ideally suited to the type of product which demands complex light thin and small scale designs to be produced in large quantities to net shape. Fine metal powder less than 20µ particle size is blended with thermoplastic and wax binders in precise amounts.

Metal injection molding mim is a metalworking process in which finely powdered metal is mixed with binder material to create a feedstock that is then shaped and solidified using injection molding the molding process allows high volume complex parts to be shaped in a single step. After molding the part undergoes conditioning operations to remove the binder debinding and densify the powders. This frees designers from the traditional constraints associated with trying to shape stainless steel nickel iron copper titanium and other metals. Metal injection molding mim merges two established technologies plastic injection molding and powdered metallurgy.

The flow diagram in fig. These facilities together with the capbilities of the mim process enables jiangsu tech to manufacture highly detailed parts to close tolerances without significant machining near net shape. Finemim provides innovative technical solutions to reduce product cost improve product quality and improve process efficiency by using of ingenuity. Mim products are not limited in shape complexity due to the flexibility of the injection molding process.

The metal powder to binder ratio is approximately 60 40 by volume.