机械喷丸成形对施加预应力试片的影响  

Effects of Mechanical Shot Peening on Prestressed Test Pieces

作　　者：吝昌昌 种浩 王筝 LIN Changchang;CHONG Hao;WANG Zheng

机构地区：[1]西安兴航航空科技股份有限公司,西安710077

出　　处：《科技创新与应用》2024年第36期23-26,31,共5页Technology Innovation and Application

基　　金：陕西省科学技术厅与西安兴航航空科技股份有限公司合作的研发项目(2022ZDLGY04-04)。

摘　　要：该研究探讨机械喷丸成形技术对施加预应力试片的影响。通过一系列实验,研究不同喷丸参数对试片的表面硬度、残余应力、微观结构以及疲劳寿命的影响。结果表明,喷丸处理显著提高试片的表面硬度和残余压应力,同时导致材料晶粒的细化,从而显著提升材料的疲劳寿命。研究结果对于理解和优化喷丸成形工艺在工业应用中的潜在价值具有重要意义。This study explored the effect of mechanical shot peening technology on prestressed test pieces.Through a series of experiments,the effects of different shot peening parameters on the surface hardness,residual stress,microstructure and fatigue life of test pieces were studied.The results show that shot peening significantly improves the surface hardness and residual compressive stress of the test piece,and at the same time leads to the refinement of the material grains,thus significantly improving the fatigue life of the material.The research results are of great significance for understanding and optimizing the potential value of shot peening processes in industrial applications.

关 键 词：机械喷丸成形 预应力 表面硬度 残余应力 微观结构 疲劳寿命 

分 类 号：TG665[金属学及工艺—金属切削加工及机床]