Title: Detection of Process Failures in Layerwise Laser Melting with Optical Process Monitoring
Authors: Craeghs, Tom
Clijsters, Stijn
Kruth, Jean-Pierre
Bechmann, Florian
Marie-Christin, Ebert
Issue Date: Nov-2012
Host Document: Physics Procedi vol:39 pages:753-759
Series Title: Laser Assisted Net Shape Engineering 7 (LANE 2012)
Conference: Laser Assisted Net Shape Engineering edition:7 location:Erlangen date:12-15 November 2012
Abstract: Layerwise Laser Melting (LLM) is an Additive Manufacturing process which allows producing complex metallic parts by building parts layer by layer. Monitoring and control of the melting process is needed for further development of the process and future adoption of the process by industry since it allows to monitor the quality of the building process during the actual build job. Furthermore, melt pool monitoring enables a better and more fundamental understanding of the thermal behavior of the process. This paper describes a system for monitoring of the melt pool during LLM and a data processing algorithm to map the measured melt pool data in space. With this so called mapping approach the data interpretation can be significantly reduced. It will be shown that with this system a wide range of process failures can be detected during the process.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Production Engineering, Machine Design and Automation (PMA) Section

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