新型金刚石纤维磨削仿真研究
[Abstract]:The geometric model of single diamond fiber and aluminum alloy workpiece is established by UG software. The finite element simulation of single diamond fiber grinding aluminum alloy workpiece is carried out by Deform software. The distribution and deformation of equivalent stress in the grinding process of aluminum alloy workpiece and the average grinding force to grinding force ratio of diamond fiber in different grinding depth are analyzed by simulation. The experiment of grinding 6061 aluminum alloy with single diamond fiber has been carried out. The results show that the equivalent stress distribution and deformation of aluminum alloy workpiece can be divided into three stages: abrasive cutting, chip forming and abrasive particle cutting. The grinding force ratio of single diamond fiber grinding simulation is small, and it has better grinding performance. The measured value of grinding force is smaller than that of finite element simulation calculation, and there is a certain error, but the error is small. The correctness of simulation model and result is verified in acceptable range. At the same time, it is further proved that the grinding process and performance of ordered diamond fiber grinding wheel are studied by means of finite element simulation analysis in the future, and the arrangement of diamond fiber on the surface of ordered diamond fiber grinding wheel is optimized. Finally, the feasibility of the preparation of ordered diamond fiber grinding wheel is completed.
【作者单位】: 湖南工业职业技术学院;湖南科技大学机电工程学院;
【基金】:国家自然科学基金项目(50775069;51205126) 湖南工业职业技术学院自然科学重点课题项目(GYKYZ2015001)
【分类号】:TG743
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