MIG Welding Process of Q235 Carbon Steel in a Workshop Environment
Q235 carbon steel has been widely used in many industrial fields because of its excellent weldability.The welding quality is easily affected by welding dust,oil pollution and other factors in welding workshops and thus cannot satisfy the demand of high quality of stability and reliability of product.The welding parameters affecting Q235 carbon steel welding quality are studied through ultrasonic inspection and micro-structure analysis.The study finds that when the welding current is 86 A,welding arc is unstable with more spatter and poor forming quality.As the current increases to 126 A,the welding arc becomes stable with minimal splashing and good forming quality.Increasing current from 126 A to 166 A,there is an obvious decrease in the spatter,but the quality of the weld formation is poor.The results show that the optimal welding parameters are current 126 A,voltage 19 V,speed 50 cm/min,and gas flow rate 1.7 L/min.
workshop environmentQ235 carbon steelwelding processwelding dust and oil pollution
万方数据
维普
