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铝铜摩擦焊是从冷压焊的基础上結合热压焊的经驗發展的。由于鋁銅表面的相互摩擦,破坏和清除了工件接触面的氧化膜及其他附着物,使鋁銅純净表面紧密接触。摩擦表面相对速度很高,并且互相作用着一定的压力,因而使粗糙的鋁銅表面發生局部的机械钩联。同时,摩擦活化了鋁銅表面,使分子彼此接近并渗透。摩擦使工件溫度升高,加速了焊接过程的进行。但摩擦表面的温度还不够高,作用于摩擦面上的压力还小,鋁銅分子的結合强度还很低,多数都被扭力矩剪断,所以这
Aluminum-copper friction welding is based on the cold-pressure welding combined with the experience of hot-pressed welding development. Due to the friction between the aluminum and copper surfaces, destruction and removal of the contact surface of the workpiece oxide film and other attachments, the pure copper and aluminum surfaces in close contact. The relative speed of the friction surfaces is high and acts a certain amount of pressure on each other, resulting in localized mechanical hooking of the rough aluminum-copper surfaces. At the same time, the friction activated aluminum-copper surface, the molecules close to each other and penetrate. Friction makes the workpiece temperature increase, speed up the welding process. However, the friction surface temperature is not high enough, acting on the friction surface pressure is small, the bonding strength of aluminum and copper molecules is still very low, the majority of torque torque is cut off, so this