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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 国际磨粒技术学会（International Committee of Abrasive Technology, ICAT）委员，中国机械工程学会极端制造分会副主任、生产工程分会常务委员、微纳米制造技术分会常务委员，中国机械工程学会生产工程分会磨粒加工技术专业委员会副主任、切削加工专业委员会常委委员、精密工程与微纳技术专业委员会常委委员，中国机械工程学会特种加工分会超声加工技术委员会副主任，中国机械工程学会摩擦学分会微纳制造摩擦学专业委员会常务委员，中国机械工业金属切削刀具协会切削先进制造技术研究会常务理事、对外学术交流工作委员会副主任、切削先进制造技术研究会自动化加工技术与系统委员会副主任。
性别：男
毕业院校：西北工业大学
学位：博士
所在单位：机械工程学院
学科：机械制造及其自动化. 机械电子工程. 航空宇航制造工程
办公地点：机械工程学院7191
电子邮箱：kangrk@dlut.edu.cn
Implementation strategies for high accuracy grinding of hydrodynamic seal ring with wavy face for reactor coolant pumps
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论文类型：期刊论文
发表时间：2013-10-01
发表刊物：SCIENCE CHINA-TECHNOLOGICAL SCIENCES
收录刊物：SCIE、EI、Scopus
卷号：56
期号：10
页面范围：2403-2412
ISSN号：1674-7321
关键字：reactor coolant pump; hydrodynamic seal ring; wavy face; grinding; cup wheel; high accuracy
摘要：Large size mechanical seals are one of the most important components used in reactor coolant pumps. However, the hydrodynamic seal rings with wavy face are difficult to machine due to their high hardness and high form accuracy demand. In order to solve this difficult problem, a novel four-axis linkage grinding method using a cup wheel to process the hydrodynamic seal rings by line contact was proposed. A preliminary study indicates that the form error of the ground seal ring surface is extremely sensitive to different linkage relations of the four axes. By taking the center height of the cup wheel and the laws of motion along the X-axis, Z-axis, B-axis and C-axis as control variables, their effects on the principle form error of the ground surface are evaluated. Six implementation strategies are proposed to reach lower principle form errors. It is found that the minimal principle form error is only 9.64 nm and hence its influence on the ground seal ring shape can be neglected in designing an ultra-precision grinding machine. In addition, the results indicate that the position accuracy of the X-axis at the microscale is acceptable no matter which implementation strategy is selected. This study is expected to serve as a theoretical basis for design and development of the four-axis ultra-precision grinding machine.