MESOSCOPIC SCALE MINIMUM CUTTING THICKNESS MODEL AND ANALYSIS

ZHU JiaWei; LEI XiaoBao; ZHANG Tao

doi:10.16579/j.issn.1001.9669.2022.04.023

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MESOSCOPIC SCALE MINIMUM CUTTING THICKNESS MODEL AND ANALYSIS

更新时间：2022-09-22

- MESOSCOPIC SCALE MINIMUM CUTTING THICKNESS MODEL AND ANALYSIS
- Journal of Mechanical Strength Vol. 44, Issue 4, Pages: 930-936(2022)
- 作者机构：
  
  1. 安徽大学电气工程与自动化学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2022.04.023
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ZHU JiaWei, LEI XiaoBao, ZHANG Tao. MESOSCOPIC SCALE MINIMUM CUTTING THICKNESS MODEL AND ANALYSIS. [J]. 44(4):930-936(2022)
DOI：

ZHU JiaWei, LEI XiaoBao, ZHANG Tao. MESOSCOPIC SCALE MINIMUM CUTTING THICKNESS MODEL AND ANALYSIS. [J]. 44(4):930-936(2022) DOI： 10.16579/j.issn.1001.9669.2022.04.023.

摘要

针对介观尺度切削加工中存在的最小切削厚度，描述了最小切削厚度形成机理，提出了一种基于刀具刃口半径及工件和刀具间摩擦因数的最小切削厚度理论模型，并将切削参数代入理论模型计算出其最小切削厚度值为2.3μm。以钛合金Ti6Al4V为研究对象，基于Abaqus建立钛合金二维切削模型，通过仿真得出最小切削厚度值在2μm～3μm之间，从而验证了最小切削厚度理论模型的正确性。并分析了刀具刃口半径及工件与刀具间摩擦因数对最小切削厚度的影响，结果表明，最小切削厚度值与刀具刃口半径成正比，与工件和刀具间摩擦因数成反比。

Abstract

Aiming at the minimum cutting thickness existing in mesoscopic cutting process, the formation mechanism of the minimum cutting thickness was described, and the theoretical model of minimum cutting thickness based on tool edge radius and friction coefficient between workpiece and tool was proposed, and the cutting parameters were substituted into the theoretical model, and the minimum cutting thickness is calculated to be 2.3 μm. Taking Ti6 Al4 V titanium alloy as the research object, the 2 D cutting model of titanium alloy was established by using ABAQUS finite element software, and the simulation results show that the minimum cutting thickness is between 2 μm～3 μm, which verifies the correctness of the theoretical model of minimum cutting thickness. The influence of cutting edge radius and friction coefficient between workpiece and tool on minimum cutting thickness is analyzed, and the results show that the minimum cutting thickness is directly proportional to the tool edge radius and inversely proportional to the friction coefficient between the workpiece and the tool.

关键词

介观尺度切削机理最小切削厚度切削仿真

Keywords

Mesoscopic scaleCutting mechanismMinimum cutting thicknessCutting simulation

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Xi’an University of Technology,Key Lab.of NC Machine Tools and Integrated Manufacturing Equipment of the Education Ministry ＆ Key Lab of Manufacturing Equipment of Shaanxi Province

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