Robot-based chiselling for the removal of support structures from PBF-LB/M manufactured Haynes 282

This study explores a robotic chiselling method for the automated removal of support structures from metal workpieces produced by Powder Bed Fusion by Laser Beam. Current methods for the removal of support structures face challenges such as manual and complex process chains and costly machine tools. In this study, robot-based chiselling of support structures from additively manufactured test specimen was performed and the removal of support structures was analysed. The experiments demonstrated over 95 % removal efficiency of support structures under optimal conditions, showcasing the potential for safe support structure removal and reduced manual labour. A chiselling strategy was developed for geometrically complex specimens, ensuring complete support structure removal. This work contributes to advancing automated post-processing in additive manufacturing, aiming to enhance efficiency and product quality while laying the foundation for future research on optimizing chiselling processes.