With a copper alloy used as target and the same composition Cu alloy as electrode, a clad layer is formed by electrospark welding and a complete metallurgical bonding interface can be obtained.

• 采用电火花堆焊设备，以铜合金为基材，以相同成分的铜合金圆棒为电极材料进行堆焊，可获得冶金结合的界面。