Professor of Mechanical Engineering and Smart Structures, School of Computing Engineering and Mathematics, Western Sydney University, Australia. His research interests cover Industry 4.0, Additive Manufacturing, Advanced Engineering Materials and Structures (Metals and Composites), Multi-scale Modelling of Materials and Structures, Metal Forming and Metal Surface Treatment.
Abstract—Punching of the side recesses is one of the process steps during the production of cable ducts. This process has already been applied successfully for polyvinyl chloride (PVC). However, punching cable ducts made of flame-retardant polycarbonate/acrylonitrile butadiene styrene (PC/ABS) is challenging. Increased burr and film formation occurs. This study aims at visualizing and adjusting the burr and film formation using high-speed recordings and a transparent tool. Thereby, the initial burr and film formation are identified. Subsequently, corresponding optimization steps may be defined. Analyzing the existing burr and film is falsified because the returning punch influences the resulting burr and film. Additionally, the existing punching process for PVC and PC/ABS was compared in order to formulate optimization steps. Therefore, snapshots from the high-speed recordings were assigned to the respective process steps. This revealed the onset of film formation and its causes and shows that PVC and PC/ABS follow different fracture mechanisms.
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