| 正偏心正交车铣精加工切削层几何形状研究 |
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| 引用本文： | 孙涛,秦录芳,侯军明,傅玉灿.正偏心正交车铣精加工切削层几何形状研究[J].中国机械工程,2020,31(24):2972. |
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| 作者姓名： | 孙涛 秦录芳 侯军明 傅玉灿 |
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| 作者单位： | 1.徐州工程学院机电工程学院,徐州,221018
2.南京工程学院工业中心,南京,211167
3.南京航空航天大学机电学院,南京,210016 |
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| 基金项目： | 江苏省基础研究计划—自然科学基金资助项目（BK20171170）；
江苏省高等学校自然科学研究重大项目（19KJA560007，18KJA460008）；
江苏省“六大人才高峰”计划资助项目（JXQC-049） |
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| 摘 要： | 针对未考虑正偏心正交车铣切削层几何形状而导致难以全面反映正交车铣切削层几何形状变化规律的问题，基于正交车铣运动规律，在不考虑动力学影响的情况下，对切削层的形成过程进行了静态分析。建立的正偏心正交车铣切削层几何形状的解析模型涉及铣刀侧刃和底刃的切入/切出角度、切削厚度和切削深度。通过试验验证了该解析模型的正确性，并分析了切削参数对铣刀切削层的影响。研究结果为正偏心正交车铣切削层几何形状的变化提供了定量的分析依据，为切削力和颤振的研究提供了理论指导。
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| 关 键 词： | 正偏心 正交车铣 切削层几何形状 解析模型 侧刃 底刃 |
Research on Cutting Layer Geometry of Positive Eccentricity Orthogonal Turn-milling in Finish Machining |
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| SUN Tao,QIN Lufang,HOU Junming,FU Yucan.Research on Cutting Layer Geometry of Positive Eccentricity Orthogonal Turn-milling in Finish Machining[J].China Mechanical Engineering,2020,31(24):2972. |
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| Authors: | SUN Tao QIN Lufang HOU Junming FU Yucan |
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| Affiliation: | 1.School of Mechanical and Electrical Engineering,Xuzhou Institute of Technology,Xuzhou,Jiangsu,221018
2.Industrial Center,Nanjing Institute of Technology,Nanjing,211167
3.College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing,210016 |
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| Abstract: | For orthogonal turn-milling, as the cutting layer geometry of positive eccentricity was not considered, the overall change rules of cutting layer geometry were difficult to describe. To solve the above problems, formation processes of cutting layers were analyzed statically without consideration of kinetic influences based on motion law of orthogonal turn-milling. The mathematic models of cutting layer geometry of orthogonal turn-milling with positive eccentricity were set up and some mathematical expressions were gained such as entrance and exit angle, cutting thickness and cutting depth of side and bottom cutting edges. The above mathematic models were verified by experiments. Finally, some influences of cutting parameters on cutting layers of tool were researched. The above studies provide quantitative analyses for changes of cutting layer geometry on positive eccentricity orthogonal turn-milling and detailed theoretical guidelines for cutting forces and chatters. |
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| Keywords: | positive eccentricity orthogonal turn-milling cutting layer geometry mathematic model side cutting edge bottom cutting edge |
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