摘要: |
研究2024铝合金切削过程中表层材料力学性能的变化,提出了基于有限元仿真的分析方案,并对典型参数的切削过程进行了有限元模拟,得到了切削过程中的应力场及温度场,并在此基础上进行了微观组织的计算,得到了切削区域及远离切削区域处的晶粒方向、位错密度、晶界分布,此外,基于微观塑性力学理论对表层材料力学性能变化进行了机理性的研究,为切削过程中表层材料性能分析提供了方法和依据。 |
关键词: 切削;有限元;应力场;温度场;微观组织 |
基金项目:河南省重点研发与推广专项(1821****0696);新乡市重大科技专项(21
***09) |
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Study on the Micro-mechanical Strengthening Mechanism of2024 Aluminum Alloy during Cutting Process |
Song Hui1, Zhang Guozhi2
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1. Department of Architecture and Civil Engineering, Xinxiang Vocational and Technical College, Xinxiang 453000;2. Mechanical and Electrical Engineering School, Xinxiang University, Xinxiang 453000
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Abstract: |
The changes of the surface of 2024 aluminum alloy in mechanical properties of materials during the cutting process were studied and its simulation method was proposed. The finite element simulation of typical parameters cutting process was done, and the stress distribution and temperature distribution were obtained. Based on its results, the microstructure calculation was done, and the grain orientation, dislocation density and grain boundaries distribution in the cutting away region from the cutting region and the cutting region were obtained. Moreover, based on the micro-plastic mechanics, the micro-mechanical property changes of the surface of the part during cutting process were studied. The method and basis are supported for the material properties analysis of the surface of the part during cutting process. |
Key words: cutting;the finite element;stress distribution;temperature distribution;microstructure |