Investigation of front pool width penetration control for application to varying plate thickness

作     者：LI Yidan R. W Richardson (Welding Department, Tianjian University, Tianjin, 300072, P.R.China Associate Prof. R. W. Richardson, Department of Welding Engineering, The Ohio State University, Columbus, OH, USA.) 

出 版 物：《China Welding》 (中国焊接(英文版))

年 卷 期：1997年第2期

页      面：118-124页

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

主　　题：penetration control. GTAW. welding 

摘      要：The influence of plate thickness on the penetration in GTA W was investigated and a theoretical heat flow model for a plate of finite thickness has been utilized ic investigate the relationship between front and back pool widths. Then. a front pool width penetration control approach has been studied, which controls penetration under the variation of plate thickness. A penetration control system for autogenous GTA welding has been utilized which includes a coaxiad weld pool imaging system and computer vision processing system to sense the front width of the GTA weld pool. Empirical results show the good performance of this penetration control approach in the presence of variations in joint plant thickness of I mm (0.04 inch) to 3 mm (0. 125 inch).