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一、振动堆焊的原理及特点振动堆焊是一种在保护介质中利用振动的焊丝进行的特殊堆焊方法。在堆焊过程中,焊丝除了以一定的速度向电弧区送进外,还以一定的频率和振幅相对于工件不断往复振动,使焊丝与工件周期性地接触与脱开,形成短路——脉冲电弧过程。此过程的每一周期内,电弧放电阶段产生的热量使工件和焊丝局部熔化形成熔池和熔滴,在短路时熔滴就过渡到熔池中去,如此反
First, the principle and characteristics of vibration surfacing Vibrating surfacing is a special method of surfacing using vibrating wire in protective media. In the process of surfacing, the welding wire is fed to the arc zone at a certain speed. The welding wire vibrates reciprocatingly with respect to the workpiece at a certain frequency and amplitude, so that the welding wire and the workpiece periodically come into contact and release to form a short circuit-pulse Arc process. During each cycle of the process, the heat generated during the arc discharge stage causes the workpiece and the wire to locally melt to form a melt pool and a droplet. During the short circuit, the droplet migrates to the melt pool, and so on