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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 精密与特种加工教育部重点实验室 副主任； 中国光整加工专业委员会 主任委员； 中国生产工程学会 常务理事； 中国国际磨粒加工技术学会（ICAT）常务理事
性别：男
毕业院校：东北工学院
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
办公地点：机械工程学院知方楼7185室
联系方式：0411-84706138 gaohang@dlut.edu.cn
电子邮箱：gaohang@dlut.edu.cn
A methodology for helical mill-grinding of tiny internal threads made of hard brittle materials
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论文类型：期刊论文
发表时间：2017-07-01
发表刊物：INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
收录刊物：SCIE、EI、Scopus
卷号：91
期号：1-4
页面范围：25-37
ISSN号：0268-3768
关键字：Internal threadmachining; Helical mill-grinding; Principle error; SiCp/Al composite
摘要：This study proposes a methodology for helical mill-grinding of tiny internal threads made of hard brittle materials such as SiCp/Al composites. The methodology uses the helical mill-grinding method incorporating with a diamond form-grinding wheel. A mathematical model is established to predict thread form errors and provide a rational range of wheel parameters, such as variation of tool profile angle Delta alpha and ratio of the wheel diameter to the thread major diameter.. Based on the methodology, a grinding wheel is developed for processing the M2 internal threads in a validation experiment. The study demonstrates that an M2 internal thread made of the SiCp/Al composite of 45% SiC volume fraction is successfully machined in 5 min with pitch error < 0.08% and angle error < 0.3%. The thread profile on the pitch diameter is within the axial equivalent tolerance zone (0-0.016 mm), which indicates that the thread precision reaches the H4 level.