Planner for sheet metal components to obtain optimal bend sequence using a genetic algorithm.
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| Title: | Planner for sheet metal components to obtain optimal bend sequence using a genetic algorithm. |
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| Authors: | Kannan, T.R.1 (AUTHOR), Shunmugam, M.S.1 (AUTHOR) shun@iitm.ac.in |
| Source: | International Journal of Computer Integrated Manufacturing. Oct/Nov2008, Vol. 21 Issue 7, p790-802. 13p. 9 Diagrams, 3 Charts. |
| Subjects: | Bending (Metalwork), Sheet metal working machinery, Tools, Algorithms, Manufacturing processes, Production management (Manufacturing), Manufacturing resource planning |
| Abstract: | Bending is one of the vital operations to obtain a three-dimensional (3D) shape in a sheet metal component. While planning for its manufacture, it is important to select proper tools, tool stages and sequence for collision-free bending at every stage. Collinear bends can be performed in a single operation. Tools and tool stages can be reused in a sequence depending on length of tool stage, intermediate shape of the component and availability of tools. When a component has many bends and different tools and tool stages are available, number of alternative bend sequences is very large. Evaluation of all such sequences to obtain a collision-free sequence is very tedious. In the present work, bending is carried out virtually for each sequence and an elitist genetic algorithm is used to determine a near optimal bend sequence for which number of tools, tool stages and handling requirements are minimal. The proposed planner for bend sequencing is developed as a part of an integrated manufacturing planning system for sheet metal components. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | Bending is one of the vital operations to obtain a three-dimensional (3D) shape in a sheet metal component. While planning for its manufacture, it is important to select proper tools, tool stages and sequence for collision-free bending at every stage. Collinear bends can be performed in a single operation. Tools and tool stages can be reused in a sequence depending on length of tool stage, intermediate shape of the component and availability of tools. When a component has many bends and different tools and tool stages are available, number of alternative bend sequences is very large. Evaluation of all such sequences to obtain a collision-free sequence is very tedious. In the present work, bending is carried out virtually for each sequence and an elitist genetic algorithm is used to determine a near optimal bend sequence for which number of tools, tool stages and handling requirements are minimal. The proposed planner for bend sequencing is developed as a part of an integrated manufacturing planning system for sheet metal components. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 0951192X |
| DOI: | 10.1080/09511920701678833 |
