Determination of AISI 1045 steel constitutive model by cutting experiment inverse analysis methods

被引：1
|
作者：
Qiu, Xinyi [1 ]
Li, Pengnan [1 ]
Wu, Shunxing [1 ]
Yan, Zhihui [1 ]
Tang, Siwen [2 ]
机构：
[1] Hunan Univ Sci & Technol, Coll Electromech Engn, Xiangtan 411201, Peoples R China
[2] Hunan Univ Sci & Technol, Engn Res Ctr Adv Min Equipment, Minist Educ, Xiangtan 411201, Peoples R China
来源：
ADVANCES IN MACHINING AND MANUFACTURING TECHNOLOGY XII | 2014年 / 589-590卷
基金：
中国国家自然科学基金;
关键词：
High-speed orthogonal cutting; Johnson-Cook constitutive model; FEM; AISI; 1045; steel;
D O I：
10.4028/www.scientific.net/KEM.589-590.52
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Based on the Merchant shear angle theory, two-dimensional high-speed orthogonal cutting experiments with an OXCUT' flow stress inverse procedure were used to determine the Johnson-Cook constitutive constants of the MSI 1045 steel (195HB). The constitutive constants obtained in the strain range 1.3-1.4 and large strain rate range 6 x 10(6)-7 x 10(6)/s. It is verified by experiments, and the result shows that the cutting forces are within the permissible error range. Compared the constitutive model with Hu's, the cutting forces of this constitutive model of FEM are closer to the measurement, while the feed force has a relatively larger gap.
引用
收藏
页码：52 / +
页数：2
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