高压物理学报Issue(1)：52-58,7.DOI:10.11858/gywlxb.2015.01.009
大耕深旋耕刀激光冲击强化残余应力研究
Study on Residual Stress of Big Tilling Depth Rotary Blade for Laser Shock Peening
摘要
Abstract
The effect of residual stress of big tilling depth rotary blade with 350 mm turning radius for laser shock peening (LSP)was researched,and the theoretical stress of rotary blade were analyzed by ANSYS.The stress concentration region was at the outer corner of tool shank.The LSP process was also simulated by ANSYS and the theoretical introduced value of the residual stress was obtained.Value of residual stress before and after LSP were tested by X-ray stress meter.The results show that the simulation value fits well with the experimental value,and the residual stress after LSP changes effectively with the maximum reaches 412.25 MPa and a amplification of 1 6 6%.The introduced residual compressive stress could eliminate the stress concentration of the working rotary blade,and raise its using life.It provides a new basis for further improvement and optimization of big tilling depth rotary blade's manufacture technique.关键词
大耕深旋耕刀/激光冲击强化/残余应力/ANSYS/X射线衍射法Key words
big tilling depth rotary blade/laser shock peening/residual stress/ANSYS/X-ray diffraction method分类
矿业与冶金引用本文复制引用
奚小波,缪宏,赵荔,朱河霖,张瑞宏,金亦富..大耕深旋耕刀激光冲击强化残余应力研究[J].高压物理学报,2015,(1):52-58,7.基金项目
“十二五”农村领域国家科技计划课题（2011BAD20B03-02）；江苏省农机三新工程项目（NJ2012-11）；江苏省科技支撑计划 （）
