Metal Additive Manufacturing Conference - MAMC 2021

Additive manufacturing (AM) of cold work tool steel is challenging due to the material’s proneness to thermal cracks and defects. These issues can be reduced by the use of electron powder bed fusion (E-PBF) manufacturing which provides higher build chamber temperature, pre-heating of the build and slower cooling of the builds compared to laser powder bed fusion (L-PBF). Still, microstructure...

Critical components made of high-performance materials subjected to fatigue
loads have extreme demands on qualification and production control. Additive
Manufacturing is now an increasingly important technology for implementation
of bionic lightweight designs.
Over recent years, a great deal of research work has been carried out on additively manufactured
grade 5/23 titanium (Ti6Al4V) in...

The microstructure of laser powder bed fusion (L-PBF) processed 18Ni300 differs from that of manufactured using conventional processing routes. The L-PBF steel, due to the non-equilibrium solidification, comprises a cellular/dendritic solidification structure with the presence of intercellular austenite as a result of heavy micro-segregation of alloying elements. On the other hand, the...

Additive Manufacturing (AM) technologies provide new opportunities to enhance some piece-producing processes in the industry: AM offers the possibility to produce complex-shaped parts that could require multiple manufacturing stages. Moreover, microstructures from Laser Powder Bed Fusion (LPBF) can heavily differ from microstructures usually obtained through traditional processes, showing...

Maraging steels are a class of ultra-high-strength martensitic steels, strengthened by precipitation of intermetallic particles in the Fe-Ni martensite upon aging. Due to their low carbon content, these steels demonstrate excellent weldability and negligible dimensional changes after heat treatment, and hence several types of maraging steels have been developed for laser-based additive...