期刊
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
卷 122, 期 -, 页码 392-404出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijmecsci.2017.01.020
关键词
Machining; Johnson-Cook constitutive law; FEM; Residual stresses; Cutting temperature; A12024-T3
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC) [217168-2012]
Nowadays finite element modeling (FEM) has become a vital and irreplaceable simulation tool in studying the machining processes. The machining simulation results depend strongly on the constitutive law and the characterization methods used to determine its constants. In the present work, three different sets of Johnson Cook (JC) constants, determined through orthogonal machining tests at different rake angles, are used in FEM to simulate the behavior of A12024-T3 alloy under high speed machining (HSM) process. The effect of these sets on the predicted residual stresses within the machined workpiece and the temperatures of the cutting tool are the subject of a comparative investigation. It is found that the residual stress distributions are much more sensitive to these sets of JC than the temperature distributions. Additionally, it is concluded that the set of JC obtained at 0 degrees rake angle, JC(0 degrees), gives an overall more accurate prediction of the investigated parameters.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据