|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Building the Pathway towards Process and Material Qualification
||Improved Part Production Using Layerwise Monitoring and Control in Metallic Powder Bed Fusion Additive Manufacturing Processes
||Ryan Wicker, Jorge Mireles
|On-Site Speaker (Planned)
In support of advancing additive manufacturing (AM) into direct part fabrication, research at the W.M. Keck Center for 3D Innovation has focused on the use of cameras and sensors to provide layerwise feedback aimed at process monitoring and control within metallic powder bed fusion systems. Infrared thermographs were employed to obtain process relevant data, including relative and absolute temperatures, dimensional measurements and defect detection. With the layerwise information, spatial control of the process has been demonstrated leading to controlled microstructural architectures and in situ defect correction. Software has been developed to automatically segment and extract process data which can be analyzed to provide real-time quantitative information related to the fabrication process. These tools can also provide layer-by-layer surface temperature information that can be used to develop processing-microstructure-property-performance relationships. The overall monitoring and control method including demonstrations will be described as well as possibilities for incorporating similar strategies across AM platforms.
||Planned: A print-only volume