| 切屑折断界限的理论研究 |
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| 引用本文： | 张中民,李振加,郑敏利,严复钢,郑伟,姜彬,刘二亮,融亦鸣. 切屑折断界限的理论研究[J]. 机械工程学报, 2002, 38(8): 74-79 |
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| 作者姓名： | 张中民 李振加 郑敏利 严复钢 郑伟 姜彬 刘二亮 融亦鸣 |
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| 作者单位： | 1. 哈尔滨理工大学现代制造技术与刀具开发研究所,哈尔滨,150080
2. 美国伍士德理工学院 |
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| 基金项目： | 国家自然科学基金资助项目（50075021） |
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| 摘 要： | 从上向弯曲切屑折断界限理论出发,推导出刀片二维槽形切屑流出圆半径及极限进给量的理论预报公式;根据横向卷曲短螺卷屑形成过程中切屑动力学及其折断判据理论,得出了极限背吃刀量的理论预报公式;并通过系统的试验研究,证明试验结果与理论预报结果比较符合。为刀片三维槽形的槽形设计及断屑预报系统建立打下理论基础。
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| 关 键 词： | 切屑 折断界限 极限进给量 极限背吃刀量 |
| 修稿时间： | 2001-11-12 |
THEORETICAL STUDY ON CHIP BREAKING LIMITS |
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| Zhang Zhongmin Li Zhenjia Zheng MinliYan Fugang Zheng wei Jiang Bin Liu Erliang. THEORETICAL STUDY ON CHIP BREAKING LIMITS[J]. Chinese Journal of Mechanical Engineering, 2002, 38(8): 74-79 |
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| Authors: | Zhang Zhongmin Li Zhenjia Zheng MinliYan Fugang Zheng wei Jiang Bin Liu Erliang |
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| Affiliation: | Zhang Zhongmin Li Zhenjia Zheng MinliYan Fugang Zheng wei Jiang Bin Liu Erliang(Harbin University of Science and Technology)Rong Yiming (Worcester Polytechnic Institute) |
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| Abstract: | From the theory of up-curl chip breaking limits, the predictive formula of chip's cross curling radius and that of critical feed-rate, all of which are about two-dimensional groove inserts, is got. Based on the theory of chip dynamics and it's breaking foundation in the formation process of side-curl short-spiral chip, the critical depth-of-cut is formulated. Through systemic experimental study, it is proved that the results of experiments match that of the theoretical predictive formula well. The base of groove designing and chip breaking system of three-dimensional inserts is also made. |
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| Keywords: | Chip Breaking limits Critical feed-rate Critical depth-of-cut |
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