Plating into a transition (radius transition or undercut) will create a stress concentration that can cause crack initiation.

如果过渡段被电镀(倒角和内切槽)将会产生应力集中，造成裂纹。

youdao

Pulse electroplating coating have more powerful hardness and bonding strength than direct current plating, the amounts of crack and porosity are lower than direct current plating.

脉冲镀层硬度和结合力均高于直流镀层，镀层孔隙率、表面裂纹数量和裂纹程度都小于直流镀层。

youdao

Pulse electroplating coating have more powerful hardness and bonding strength than direct current plating, the amounts of crack and porosity are lower than direct current plating.

脉冲镀层硬度和结合力均高于直流镀层，镀层孔隙率、表面裂纹数量和裂纹程度都小于直流镀层。

youdao