因热处理时发生畸变,加之精度要求较高,零件热处理后通常都要进行机加工。由于通过机加工修正变形的成本太高,所以应尽可能减小零件的热处理畸变。本文研究结果证明,零件的热处理畸变与其几何形状有关。首先概述使零件几何形状成为畸变倾向重要载体的物理效应。其次,以复杂的汽车零件为例说明零件几何形状影响畸变的程度。最后介绍一种能更有效控制系统畸变的新途径。 Distortion due to heat treatment, combined with high precision, parts are usually subject to heat treatment after machining. Due to the cost of modifying the distortion by machining is too high, the thermal distortion of the part should be minimized. The results of this paper prove that the heat distortion of the part is related to its geometry. First outlines the physical effects that make part geometry an important carrier of distortion propensity. Second, the complexity of the automotive parts as an example to illustrate the part geometry affect the degree of distortion. Finally, we introduce a new way to control system distortion more effectively.