Damping oscillations in a wire bending process. (October 2022)

• Record Type: Journal Article
• Authors: Baraldo, Andrea; Bascetta, Luca; Caprotti, Fabrizio; Ferretti, Gianni; Ponti, Angelo; Sakcak, Basak
• Is Part Of: Mechatronics. Volume 86(2022)
• Publication Date: 2022-10
• Subjects: 00-01 -- 99-00; Oscillation damping -- Wire bending process -- Bending motion profile; Computer integrated manufacturing systems -- Periodicals; Flexible manufacturing systems -- Periodicals; Mechatronics -- Periodicals; Productique -- Périodiques; Fabrication, Systèmes flexibles de -- Périodiques; Mécatronique -- Périodiques; Computer integrated manufacturing systems; Flexible manufacturing systems; Mechatronics; Periodicals; 629.89
• DOI: 10.1016/j.mechatronics.2022.102846
• Languages: English
• ISSNs: 0957-4158

Abstract

Abstract: This paper presents an approach to modify CAD/CAM generated motion profiles for wire bending machines, in order to damp wire oscillations without decreasing machine throughput. Two different methodologies are presented, both leveraging on a simple and easily identifiable model of wire oscillations, the first one based on a filtering approach, the second one on an optimisation approach. The two methodologies are both characterised by a low computational complexity, allowing them to be integrated directly in the bending machine user interface, and can rely on a standard camera to identify wire oscillation parameters. A thorough experimental validation of the approaches is also presented, showing promising results in damping oscillations with wires of different materials. Highlights: Oscillations increase settling time in machining operations, decreasing throughput. A simple and easily identifiable model of wire oscillations is considered. Filtering and optimisation approach to generate oscillation-free motion profiles. Both methodologies are characterised by a low computational complexity. Both methodologies rely on a standard camera to identify wire oscillation model.