中文摘要：

准确预测残余应力对提高微小工件的可靠性非常重要。建立微切削残余应力的理论分析预测模型，应用有限元仿真方法，探求了不同切削速度和进给量下微切削45钢已加工表面残余应力分布规律，分析了切削速度和进给量对已加工表面残余应力的影响，为优化微切削过程和防止微小零件疲劳破坏提供可靠的依据。

英文摘要：

The predictions of residual stresses are most critical on the micro parts. An analytic model is presented. Finite element analyses are preformed at different velocity and feed rate for AISI 1045 to analyze the role of residual stress distribution and effect of the velocity and feed rate on residual stress. The results will optimize the microcutting processes and provides reliable basis for preventing fatigue failure of micro parts.