Annual International RAPDASA Conference, 19th Annual International RAPDASA Conference

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DETECTING DEFECTS DURING POWDER DEPOSITION IN ADDITIVE MANUFACTURING
Adriaan Jacobus Hendriks, Rocky Ramokolo, Chris Ngobeni, Matome Moroko, Darryl Naidoo

Last modified: 2018-10-31

Abstract


Additive manufacturing applications, in areas such as aerospace and medicine, are limited due to the lack of process stability and quality management [1]. In particular, geometrical inaccuracies and the presence of mechanical defects hinder repeatability of the process. To break into industries with very high quality standards, an important issue to be addressed is in-situ quality control during a built. The work which will be presented here is focused on image based process monitoring of the powder bed after the deposition of a new powder layer. We will also discuss the effects these might have on powder-metal consolidation. Preliminary results will be shown of defects identified and processes after a new powder layer has been deposited.