文献类型：会议论文

英文题名：Weld pool surface model establishment for gtaw based on 3d reconstruction technology

作者：Wang, Xuewu[1]

机构：[1] School of Information Science and Engineering, East China University of Science and Technology, Shanghai 200237, China

会议论文集：Proceedings of 2013 Chinese Intelligent Automation Conference - Intelligent Automation and Intelligent Technology and Systems

会议日期：August 23, 2013 - August 25, 2013

会议地点：Yangzhou, Jiangsu, China

语种：英文

外文关键词：Geometry - Image reconstruction - Welds - Three dimensional computer graphics - Gas metal arc welding - Gas welding - Process control

摘要：In Gas Tungsten Arc Welding (GTAW) process, weld pool contains information that can be used to establish process model, realize desired penetration control and study the weld pool characteristic. Hence, various sensing methods are used to sense weld pool status. At the same time, many researches are conducted to establish the weld process model, and obtain desired weld process control. In this paper, a three dimensional weld pool sensing system was introduced, and the image processing, weld pool reconstruction results were presented. Then, based on the reconstructed 3D weld pool geometry, an artificial neural network (ANN) model was established to describe the weld pool geometry. Simulation results show that the ANN model can reflect weld pool geometry accurately, which will benefit the GTAW process analysis and control. ? 2013 Springer-Verlag Berlin Heidelberg.