电刷镀前的表面制备将直接影响镀层的质量,现已发现电刷镀层中存在残余拉应力,致使所产生的裂纹扩展到基体,使其疲劳寿命降低。如何解决这一问题,已成为应探讨的重要课题。对此,笔者认为采用喷丸强化作电刷镀前的表面制备,可以提高镀层的结合强度和镀件的抗疲劳性能,现介绍如下。 Surface preparation before brush plating will have a direct impact on the quality of the coating. It has been found that there is residual tensile stress in the brush coating, which leads to the crack growth to the matrix, which reduces the fatigue life. How to solve this problem has become an important issue to be explored. In this regard, I believe that the use of shot peening for brush plating before the surface preparation, coating can improve the bonding strength and fatigue resistance of plating, are described below.