High-Productivity of Robot-Welding at Minor-Product: Anti-Sensing and Statistical Quality Controlling Method

Formerly, the joining method between a short pipe and elbow tubes of steel pipes had been applied to a manual welding process. This work tried statistical controlling methods of fitting size accuracy between a short pipe and elbow tubes, and improvements of its process to apply to a welding robot. These statistical controlling methods and improvements could apply to the automatic welding process of that both pipes joints, instead of a manual welding. Also, these methods and improvements get the fitting size of weld joints with high reliability and accuracy with representation. Therefore the system of welding robot for short pipe-elbow tubes joints could realize a production process with high accuracy and high productivity.