Technology

MIM is a special case of direct manufacturing processes (which include also 3D printing, SLM or EBM) and traditional powder metallurgy.

The advantages of MIM

The advantages of MIM are obviously the ability to shape complex products, the sharpness of moulded details ,but also very smooth surface definition (between 0,8 and 2 microns Ra depending on the size of the powder). Minimum radiuses are about some 1/10 of a mm and the technology is able to shape parts with sections changes ranging from 1mm thickness to 10mm thickness.

The use of very fine spherical powders allows fully isotropic shrinkage and tighter tolerances. The maximum internal defect is the size of the powder and because powder is fine, defect are always non impacting. The final composition of the sintered alloys are super clean and highly reproducible and part have a better physical and chemical properties than other conventional metallurgies.

The material portfolio is given in the table below. Under request some bespoke materials can be developed for MIM if powders are available, if they sinter and if the market is big enough.

Dimensional and shape accuracy

DimensionFlatness
Smaller than 5 mm²+/- 0,03 mm
From 5,01 to 15 mm²+/- 0,05 mm
From 15,01 to 25 mm²+/- 0,1 mm
Superior to 25 mm²+/- 0,15 mm
DimensionSymmetry, concentricity
Smaller than 5 mm+/- 0,03 mm
From 5,01 to 15 mm+/- 0,05 mm
From 15,01 to 25 mm+/- 0,1 mm
Superior to 25 mm+/- 0,15 mm
DimensionTolerance
Smaller than 5 mm+/- 0,03 mm
From 5,01 to 15 mm+/- 0,05 mm
From 15,01 to 25 mm+/- 0,1 mm
From 25,01 to 30 mm+/- 0,15 mm
From 30,01 to 35 mm+/- 0,2 mm
From 35,01 to 45 mm+/- 0,25 mm
From 45,01 to 50 mm+/- 0,3 mm
From 50,01 to 55 mm+/- 0,35 mm
From 55,01 to 60 mm+/- 0,4 mm
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