In this paper, a variable model of optimum droplet transfer mode for pulsed GMA welding using a steel electrode is developed on the principle of the micro-interference instability of magnetofluid.

• 基于磁流体微扰动“失稳”的原理,建立了钢焊丝脉冲GMA焊最佳熔滴过渡形式的参数模型。