Proceedings of the
9th International Conference of Asian Society for Precision Engineering and Nanotechnology (ASPEN2022)
15 – 18 November 2022, Singapore

Seamless integration of AM Digital Twin with CAD/CAM software for large-format 3D printing of metals

Guglielmo Vastola1,a, Xiling Yao2, Jakub Mikula1 and Zhang Yong-Wei1

1A*STAR Institute of High Performance Computing, 1 Fusionopolis Way #16-16, Connexis 138632

2A*STAR Singapore Institute of Manufacturing Technology, 2 Fusionopolis Way, 138634


Decentralized manufacturing, closer to the point of use, requires tight integration of the process workflow, from part design, optimization, simulation, to manufacturing. Such demand is particularly clear in Laser Aided Additive Manufacturing (LAAM) of large-format components such as propellers and other parts for the maritime & offshore industry. A key component of modern workflow is the Digital Twin (DT), which informs the part and process developer of thermal history, microstructure, mechanical properties, and distortion of the part by doing process modeling simulation. While achieving a DT of LAAM is a complex task on its own, successful deployment of the workflow is even a more ambitious task because it requires integration between the DT with the design tool which generates the part and robot toolpath. Here, we demonstrate direct integration of a CAD/CAM software developed at SIMTech with the LAAM DT developed at IHPC. We prove this integration by designing an airfoil component together with its gcode, and transferring the data from one platform to the other. The direct inspection of thermal history at part scale supports the CAD/CAM user in selecting part design and robot code for optimal printing quality.

Keywords: Laser Aided Additive Manufacturing, Digital Twin, CAD/CAM software.

PDF Download