| 三维槽型断屑上向卷曲切屑折断预报 |
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| 引用本文： | 刘二亮,韩荣第,谭光宇,李振加.三维槽型断屑上向卷曲切屑折断预报[J].哈尔滨工业大学学报,2007,39(3):370-373. |
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| 作者姓名： | 刘二亮 韩荣第 谭光宇 李振加 |
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| 作者单位： | 1. 哈尔滨工业大学,机电学院,哈尔滨,150001
2. 哈尔滨理工大学,机械动力工程学院,哈尔滨,150080 |
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| 基金项目： | 国家自然科学基金资助项目(50275042) |
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| 摘 要： | 切屑折断预报是实现切屑控制的有效手段.运用等效参数的概念,将复杂的三维切削过程简化为二维切削过程;分析了三维槽型的几何单元对切屑的约束作用,推导出直线圆弧槽型、双直线圆弧槽型、凸曲面槽型和斜槽槽型的切屑上向卷曲半径;依据切屑折断条件建立了上向卷曲切屑折断预报模型.选取3种三维槽型刀片进行钢外圆车削的断屑试验.结果显示切屑折断范围与模型预报切屑折断范围基本一致,证明了切屑折断预报模型的合理性.
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| 关 键 词： | 等效参数 上向卷曲 切屑折断 三维槽型 |
| 文章编号： | 0367-6234(2007)03-0370-04 |
| 修稿时间： | 2005-04-06 |
Predicting the up-curl chip breaking of three-dimensional groove inserts |
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| LIU Er-liang,HAN Rong-di,TAN Guang-yu,LI Zhen-jia.Predicting the up-curl chip breaking of three-dimensional groove inserts[J].Journal of Harbin Institute of Technology,2007,39(3):370-373. |
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| Authors: | LIU Er-liang HAN Rong-di TAN Guang-yu LI Zhen-jia |
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| Abstract: | The equivalent parameter concept was used to simplify a complicated three-dimensional cutting process to a two-dimensional cutting process.The prediction model of chip up-curl radius was established by analyzing the chip restriction action of geometrical element in three-dimensional groove.The chip breaking predictive model was developed to predict the chip breaking behaviour in steel turning with grooved tools.The model was based on chip breaking conditions and equivalent parameter concept.Finally,to verif... |
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| Keywords: | equivalent parameter up-curl chip breaking three-dimensional groove |
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