As part of the PEPS project, we attended the annual powder metallurgy congress (EPMA 2020) of the 5th, 6th and 7th of octobre and it was a virtual congress.
In this congress different topics were discussed, in particular the PIM-Like process and the development of feedstocks (Metal powder + Polymer binder).
Indeed, the development of feedstocks is a crucial step in the PIM-LIKE process. The optimal solids loading is the first parameter to be defined because it ensures a good balance between fluidity, flexibility and stiffness in the innovative feedstock (filament or powder) ; and it must be between 50% vol and 60% vol.
- Naranjo  has shown that the binder is a very important component in the development of feedstock which is made up of a combination of elastomers, backbone and additives; and which it has an influence on the properties of the final parts. In addition, M. Wagner  confirmed this, by using two different binders in order to show their influences on the viscosity and stiffness of the feedstock.
Finally, a rheological study for the feedstock is essential to optimize the parameters of 3D printing (viscosity, shear rate, etc.).
Do not hesitate to contact us to have more information on PIM-like process and on feedstocks.
 Marius A. Wagner, Feedstock development for fused deposition of 316L stainless steel and characterization of final materials properties.
 Juan Alfonso Naranjo, Fused Filament Fabrication of PIM-like M2 High Speed Steel parts: production and characterization.