Multi-laser processing for high-speed powder bed additive manufacturing and opportunities for photonic integration

Kristian M. Groom

doi:10.1117/12.2584834

4 October 2020 Multi-laser processing for high-speed powder bed additive manufacturing and opportunities for photonic integration

Kristian M. Groom

Author Affiliations +

Proceedings Volume 11580, SPIE Photonex Industry Talks; 1158004 (2020) https://doi.org/10.1117/12.2584834
Event: SPIE Photonex and Vacuum Expo, 2020, Online Only

Abstract

Selective laser melting (SLM) is routinely used in the additive manufacture (3D printing) of high value, geometrically complex components from a variety of metal alloys and plastics. This is currently achieved through galvo-scanning a high power, fixed wavelength laser to melt successive powder layers. I will introduce an alternative approach to SLM based on the application of a high-density array of semiconductor lasers, with potential to radically improve productivity, flexibility, efficiency and cost. The broad spectrum available in the semiconductor laser palette allows lasers to be matched to the absorption peak of the material being processed, and opens a wealth of opportunities for new integrated photonic solutions.

Conference Presentation

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Kristian M. Groom "Multi-laser processing for high-speed powder bed additive manufacturing and opportunities for photonic integration", Proc. SPIE 11580, SPIE Photonex Industry Talks, 1158004 (4 October 2020); https://doi.org/10.1117/12.2584834

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