Robust control of the draw-in in a deep-drawing process: a measurement-based approach

Maria Emanuela Palmieri, Laura Fabbiano, Antonella Gaspari, Luigi Tricarico
A methodology to consider the process variability related to a deep-drawing process is proposed, with reference to specific laboratory conditions. In fact, the integration among numerical simulation, control system and measurements informative flows carried out in controlled conditions is expected to improve - and thus limit, the variability introduced in the conditions of the field, where the machining tool is called to operate. The results obtained from a preliminary experimental campaign aimed at fine-tuning the models and feedback control algorithms appear promising. This is based on the use of the laser triangulation technique to monitor displacement during the draw-in of the blank. A feasibility analysis and a consequent test plan are necessary to evaluate the system signature both in optimal conditions and to identify and implement the practical situations affecting the process (e.g. lubricant conditions and materials properties) in view of a technology transfer in the field. The methodological suggestions are envisaged to optimise the monitoring strategy, as well, to make the control robust and enhance the process sustainability and the product quality.
Deep drawing; Feedback control; Robustness; Measurement uncertainty; Displacement laser triangulation sensors
Event details
Event name:
TC10 Conference 2022

18th IMEKO TC10 Conference "Measurement for Diagnostics, Optimisation and Control to Support Sustainability and Resilience"

Warsaw, POLAND
26 September 2022 - 27 September 2022