Constitutive Model of Aluminium Alloy in Metal Cutting

DING Yue; LIU Chang

doi:10.16080/j.issn1671-833x.2019.07.068

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Constitutive Model of Aluminium Alloy in Metal Cutting

更新时间：2025-10-30

- Constitutive Model of Aluminium Alloy in Metal Cutting
- Aeronautical Manufacturing Technology Vol. 62, Issue 7, Pages: 68-73(2019)
- 作者机构：
  
  1. 中国航空制造技术研究院数字化与柔性装配研究室,北京,100024
  2. 数字化制造技术航空科技重点实验室,北京,100024
  3. 复杂构件数控加工工艺及装备北京市重点实验室,北京,100024
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2019.07.068
  CLC：
- Published：2019
- 稿件说明：
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丁悦，刘畅. 切削加工中7B04铝合金本构模型[J]. 航空制造技术, 2019, 62(7): 68-73.

DING Yue, LIU Chang. Constitutive Model of Aluminium Alloy in Metal Cutting. Aeronautical Manufacturing Technology, 2019, 62(7): 68-73.
丁悦，刘畅. 切削加工中7B04铝合金本构模型[J]. 航空制造技术, 2019, 62(7): 68-73. DOI： 10.16080/j.issn1671-833x.2019.07.068.

DING Yue, LIU Chang. Constitutive Model of Aluminium Alloy in Metal Cutting. Aeronautical Manufacturing Technology, 2019, 62(7): 68-73. DOI： 10.16080/j.issn1671-833x.2019.07.068.

摘要

为建立切削加工中7B04 铝合金Johnson-Cook 本构模型，进行了准静态压缩试验和直角自由切削试验，根据大变形、高应变率和高温度下的材料应力- 应变关系对本构模型的参数进行识别，提出了应变软化修正项和应变率硬化系数的形式，最后进行了试验验证，结果表明该模型能够准确模拟出7B04 铝合金在切削过程中的应力。

Abstract

In order to establish the Johnson-Cook constitutive model of 7B04 aluminium alloy

a series of quasi-static compression tests and orthogonal cutting tests were conducted to fit the model parameters. Based on the tests data

it was presented a strain softening term and a equation of strain rate parameter. At last

the constitutive model was proved to be reasonable and accurate via test verification.

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