A Metallo-Thermomechanically Coupled Analysis of Orthogonal Cutting of AISI 1045 Steel
A Metallo-Thermomechanically Coupled Analysis of Orthogonal Cutting of AISI 1045 Steel
复制标题
DOI：
10.1115/1.4007464
复制
发表时间：
2012-10
影响因子：
4
通讯作者：
Hongtao Ding;Y. Shin
中科院分区：
文献类型：
--
作者：
Hongtao Ding;Y. Shin
在机械加工过程中，材料的行为往往是复杂的，涉及应力/应变、温度和微观结构之间的深度耦合效应。基于真实的金属-热力耦合分析，预测了相变对美国钢铁协会（AISI）1045钢正交切削的影响。建立了金属-热力耦合材料模型，并利用有限元法，利用abaqus软件，同时求解了切削过程中相组成、切削温度、切屑形貌和切削力的变化规律。模型的有效性进行了评估，使用正交切削AISI 1045钢在各种条件下的实验数据，切削速度范围从198到879米/分钟，进给量从0.1到0.3毫米，刀具前角从-7度到5度。在切屑形成，切削力和切削温度之间的模型预测和实验数据取得了很好的协议。
Materials often behave in a complicated manner involving deeply coupled effects among stress/stain, temperature, and microstructure during a machining process. This paper is concerned with prediction of the phase change effect on orthogonal cutting of American Iron and Steel Institute (AISI) 1045 steel based on a true metallo-thermomechanical coupled analysis. A metallo-thermomechanical coupled material model is developed and a finite element model (FEM) is used to solve the evolution of phase constituents, cutting temperature, chip morphology, and cutting force simultaneously usingabaqus. The model validity is assessed using the experimental data for orthogonal cutting of AISI 1045 steel under various conditions, with cutting speeds ranging from 198 to 879 m/min, feeds from 0.1 to 0.3 mm, and tool rake angles from −7 deg to 5 deg. A good agreement is achieved in chip formation, cutting force, and cutting temperature between the model predictions and the experimental data.