Topological Machining Fixture Layout Synthesis Using the Genetic Algorithm

Deformation of the workpiece may cause dimensional problems in machining. Supports and locators are used in order to reduce the error caused by elastic deformation of the workpiece. The optimization of support and locator locations is a critical problem to minimise the geometric error in workpiece machining. In this paper, the application of genetic algorithms (GAs) to the fixture layout optimisation is presented to handle fixture layout problem. A genetic algorithm based approach is developed to optimise fixture layout through integrating ANSYS running in batch mode to compute the objective function values for each generation. A case study is given to illustrate the application of proposed approach.

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