胡自化,王金龙,秦长江,毛美姣,陈小告,杨志平,李众.刀片表面粗糙度对工件表面残余应力分布影响的分析[J].表面技术,2018,47(2):255-261.
HU Zi-hua,WANG Jin-long,QIN Chang-jiang,MAO Mei-jiao,CHEN Xiao-gao,YANG Zhi-ping,LI Zhong.Effect of Insert Surface Roughness on Residual Stress Distribution of Workpiece Surface[J].Surface Technology,2018,47(2):255-261 |
| 刀片表面粗糙度对工件表面残余应力分布影响的分析 |
| Effect of Insert Surface Roughness on Residual Stress Distribution of Workpiece Surface |
| 投稿时间：2017-08-03 修订日期：2018-02-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2018.02.040 |
| 中文关键词: 硬质合金刀片 表面粗糙度 残余应力 化学机械抛光 摩擦模型 |
| 英文关键词:cemented carbide insert surface roughness residual stress chemical mechanical polishing friction model |
| 基金项目:湖南省科技厅科技计划重点研发项目（2016GK2014）；湖南省自然科学-株洲联合基金项目（2017JJ4055）；湖南省研究生科研创新项目（CX2016B231）；湖南省教育厅科学研究项目（17C1533） |
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| Author | Institution |
| HU Zi-hua | School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, China |
| WANG Jin-long | School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, China |
| QIN Chang-jiang | School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, China |
| MAO Mei-jiao | School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, China |
| CHEN Xiao-gao | School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, China |
| YANG Zhi-ping | Zhuzhou Cemented Carbide Cutting Tools Co., Ltd, Zhuzhou 412007, China |
| LI Zhong | School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, China |
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| 中文摘要: |
| 目的 探究硬质合金刀片表面粗糙度对加工工件表面残余应力分布的影响。方法 首先通过AdvantEdge FEM软件建立斜角三维切削模型，得出刀-屑间的摩擦模型。然后采用化学机械抛光方法对硬质合金刀片表面进行预处理，制备不同表面粗糙度的硬质合金刀片，通过对不同表面粗糙度的刀片进行四因素四水平的正交切削实验获得切削力，结合切削力的实验结果及刀-屑之间的摩擦模型，获得刀-屑间的摩擦系数，基于AdvantEdge FEM对切削残余应力进行模拟仿真。最后，结合实验对仿真模型的合理性进行验证。结果 采用表面粗糙度为0.02、0.04、0.08、0.2 μm的硬质合金刀片切削45钢时，工件表面的最大残余应力分别为621.51、655.46、654.69、687.29 MPa。采用表面粗糙度为0.02 μm的硬质合金刀片切削与采用表面粗糙度为0.2 μm的硬质合金刀片切削相比，工件表面的最大残余应力减小了10.58%。结论 硬质合金刀片的表面粗糙度越小，切削工件表面的残余应力越小。 |
| 英文摘要: |
| The work aims to investigate effect of surface roughness of cemented carbide inserts on residual stress distribution of workpiece surface. Firstly, a three-dimensional oblique cutting model was established based upon AdvantEdge FEM software, and a tool-chip friction model was obtained. Then, surface of the cemented carbide inserts was pretreated in the method of chemical mechanical polishing (CMP), and cemented carbide inserts of different surface roughness were prepared. Cutting force was obtained by performing four factors-four levels orthogonal cutting experiments to the inserts of different surface roughness. Tool-chip friction coefficient was obtained according to experimental results of cutting force and tool-chip friction model. Cutting residual stress was simulated based on the AdvantEdge FEM software. Finally, rationality of the simulation model was verified by performing experiments. The maximμm residual stress of the workpiece surface was 621.51, 655.46, 654.69, 687.29 MPa when the cemented carbide insert with surface roughness of 0.02, 0.04, 0.08, 0.2 μm was used to cut 45 steel. Cemented carbide insert with surface roughness of 0.02 μm was compared with the cemented carbide insert with surface roughness of 0.2 μm, the maximμm residual stress of the workpiece surface decreased by 10.58%. The better the surface quality of cemented carbide insert is, and the lower the surface residual stress is. |
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