What is the density and strength of MIM products?

The density of a typical MIM is theoretically higher than 98%. The specific density characteristics depend on the material chosen, but it is very close to precision materials.

Does the part contract when the adhesive is removed?

No, the volume of the parts will not change during the degreasing process. During sintering, however, the parts contract by 20 ‰.

How does the MIM differ from conventional PM processes?

Traditional PM USES unidirectional high pressure to press rough metal powder into a fixed position to produce moderately complex equipment. In particular, if the density is not further improved during sintering, this method produces a density value between 80 and 90%, which limits its physical properties as an alloy. Because of the flexibility of the MIM, there is no limit to making complex products. The fine metal powder combined with high temperature sintering enables the final product of MIM to achieve high density. This allows MIM products to have similar properties to precision materials.

Is the metal melted during the molding process?

No, only if the adhesive is melted so that the powder can flow like a plastic material. The cooling adhesive gives the component a certain strength. The parts are then sintered to very high densities to meet their mechanical requirements.