标题：Numerical modeling of minimum uncut chip thickness for micromachining with different rake angle
作者：Shi, Z.Y. ;Liu, Z.Q.
作者机构：[Shi, Z.Y. ;Liu, Z.Q. ] Dept. of Mechanical Engineering, Shandong University, Jinan, 250061, China
会议名称：ASME 2011 International Manufacturing Science and Engineering Conference, MSEC 2011
会议日期：13 June 2011 through 17 June 2011
来源：ASME 2011 International Manufacturing Science and Engineering Conference, MSEC 2011
关键词：ALE; Copper; Effective rake angle; Minimum uncut chip thickness
摘要：In micromachining, when the undeformed chip thickness becomes comparable to the edge radius of the cutting tool, the effective rake angle becomes to be negative and has significant effect on the determination of the minimum uncut chip thickness. The determination of the minimum uncut chip thickness is essential in micro machining in order to achieve desired surface integrity and accuracy. In this paper, an Arbitrary Lagrangian Eulerian (ALE)-based numerical modeling is proposed to determine the minimum uncut chip thickness for Copper by changing the cutting tool's nominal rake angle. According to the relationship between the minimum uncut chip thickness and the effective rake angle, a mathematical model that reflects the relationship between the effective rake angle and the nominal rake angle is established. Copyright © 2011 by ASME.