The Blemish Identify System of Friction Welding Based on GA-BP Model

Abstract

Currently the BP networks which used in friction welding defect recognition existents the problem of slow convergence and easy to fall into local optimum. This text will introduce the germ arithmetic into the BP network to turn a beginning to start the power value, putting forward the improvement BP network of the blemish identify. Pass to verify the blemish signal of the some GH4169 heat metal alloys detected by a super voice C, which expresses that the method makes blemish qualitative analysis classification acquired higher accuracy, and it can lower artificial and subjective factor consumedly to the influence that the blemish identify.