Post-build hot iso-static pressing (HIP) has become a common practice for the closure of some types of defects in AM metal components. Assuming your products lend themselves to HIPing, can this post-processing method get rid of all porosity?
Researchers in the AM3 lab, at the university of Arkansas, have demonstrated the potential for a new low-costs powder bed AM technique for the manufacturing of micro-components made of low-melting temperature (~600C) powders . Unlike Selective Laser Sintering and Selective Laser Melting that employ a laser beam scanned across the powder bed, the new concept, referred to as MAPS for Micro-Array Powder Sintering, employs arrays of micro-heaters as energy sources. This proof-of-concept could increase build speeds and reduce powder waste and running costs.
We provide practical and actionable info dedicated to additive manufacturing of high-value metal components