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Quo vadis, laser additive manufacturing?

: Kelbassa, I.; Wohlers, T.; Caffrey, T.


Journal of laser applications : JLA 24 (2012), Nr.5, Art.050101, 10 S.
ISSN: 1042-346X
ISSN: 1938-1387
Fraunhofer ILT ()

The entire society has to face its global mega trends and grand societal challenges in a global world and economy. The single-stage process LMD uses laser radiation as a heat source to create a melt pool on the work piece surface. New products addressing adapted and customized specifications due to rapidly changed needs and demands require new manufacturing approaches that subsequently require a revolutionary thinking toward completely re-invented manufacturing chains and processes. The mechanical properties of the parts built-up are comparable to those that are conventionally manufactured mechanically by subtractive methods. Depending on the thermal history of the part built-up due to the layer-by-layer thermal manufacturing process, achieving proper mechanical properties can also be reliant on the appropriate post weld heat treatment in order to (re-)adjust the microstructure.