摘要
为探究试件安装角度对交叉孔转接部位抛磨效果的影响,基于离散单元法对交叉孔试件振动抛磨加工工艺进行仿真分析。研究发现:与安装角度为0°,90°时相比,安装角度为45°时,交叉孔转接部位的加工均匀性较好,且转接部位磨损深度的最小值大于安装角度为0°,90°时磨损深度的最小值。基于单因素试验方法,采用ZLC100卧式振动抛磨设备对不同安装角度的交叉孔试件进行抛磨加工试验。结果表明:与安装角度为0°,90°时相比,安装角度为45°时,交叉孔转接部位毛刺的去除效果较好,转接部位倒圆角效果较明显,测得转接部位圆角半径在0.3~0.7 mm范围内,大孔和小孔内侧表面8个区域表面粗糙度归一化值Ra*有明显的下降趋势,试验得到的结论与仿真分析的结论相符合。
To investigate the influence of the installation angle of specimens on the finishing effect of the cross hole connecting part,vibration finishing technology of cross hole specimens is simulated and analyzed based on the discrete element method.The results show that the machining uniformity of the cross hole connecting part is better and the minimum wear depth of the connecting part is greater when the installation angle is 45°compared with that under 0°and 90°.Based on the single factor test method,ZLC100 horizontal vibration finishing equipment is used to carry out finishing test on cross hole specimens with different installation angles.The results show that the burr removal effect of the cross hole connecting part is better and the fillet effect of the cross hole connecting part is more obvious when the installation angle is 45°compared with that under 0°and 90°.The measured fillet radius is within the range of 0.3~0.7 mm at the connecting part and the normalized surface roughness Ra*has a significant downward trend in 8 regions of the inner surface of large and small holes when the installation angle is 45°.The experimental results are consistent with the simulation results.
作者
贾建
李秀红
李文辉
杨胜强
王嘉明
JIA Jian;LI Xiuhong;LI Wenhui;YANG Shengqiang;WANG Jiaming(College of Mechanical and Vehicle Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Shanxi Key Laboratory of Precision Machining,Taiyuan University of Technology,Taiyuan 030024,China;College of Aeronautics and Astronautics,Taiyuan University of Technology,Jinzhong 030600,Shanxi,China)
出处
《金刚石与磨料磨具工程》
CAS
北大核心
2023年第1期102-109,共8页
Diamond & Abrasives Engineering
基金
国家自然科学基金面上项目(51975399)。
关键词
安装角度
交叉孔
去毛刺
离散元模拟
振动抛磨
installation angle
the cross hole
deburring
discrete element simulation
vibratory barrel finishing
