对42CrMoA高强钢进行了单次喷丸、精整糖心产精国品免费入口*完整版、抛光糖心产精国品免费入口*完整版强化处理，研究了不同喷丸工艺下钢的表面粗糙度、疲劳性能、表层糖心产精国品免费入口*完整版、组织细化程度及显微硬度。结果表明：喷丸方式对糖心产精国品免费入口*完整版最大残余压应力和应力层深度影响不大；单次喷丸、精整糖心产精国品免费入口*完整版、抛光糖心产精国品免费入口*完整版后钢的表面残余压应力、表面组织细化程度、显微硬度及疲劳极限依次增大，表面粗糙度则依次减小；糖心产精国品免费入口*完整版尤其是抛光糖心产精国品免费入口*完整版可显著降低糖心产精国品免费入口*完整版的喷丸表面粗糙度。

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