Design and Optimization Method for Fixture Layout and Clamping Forces on Thin-walled Workpieces

Based on the machining errors of thin-walled workpieces with low stiffness,that it was produced by clamping forces and cutting forces imposing them in the manufacturing process,some design methods of fixture was presented in order to gain good machining precision.A new Optimization Method using Genetic Algorithm and finite element method for Fixture Layout and Clamping Forces was researched.For a thin-walled case as an example,the scheme design of its fixture and optimization design on its fixture layout and clamping forces were carried out.It can be shown that the presented method can effectively reduce the deformation of the thin—walled case caused by unreasonable fixture layout and clamping forces in manufacturing process.