薄壁柔性零件的防变形冷加工技术研究

发布时间：2018-04-29 13:33

本文选题：薄壁柔性零件 + 防变形　；参考：《科技通报》2017年11期

【摘要】：提出一种基于有限元法的薄壁柔性零件的防变形冷加工技术研究方法。该方法先利用层次分析方法对薄壁柔性零件加工变形的影响因素进行提取,得到薄壁柔性零件加工变形影响因素提取属性,通过计算提取属性对目标层的影响程度矢量,得到每个薄壁柔性零件的加工变形影响因素的重要度值,在此基础上采用误差补偿方法计算出薄壁柔性零件的防变形冷加工铣削深度,并结合薄壁柔性零件变形预测模型对薄壁柔性零的切削参数进行优化设计,以最小化所有薄壁柔性零件切削工位的加工误差为目标函数。实验结果表明,所提方法能够有效提高薄壁柔性零件的形位精度,同时对同类的其他薄壁柔性零件的变形控制具有一定的参考价值。
[Abstract]:A research method of anti-deformation cold machining for thin-walled flexible parts based on finite element method is presented. In this method, the influence factors of machining deformation of thin-walled flexible parts are extracted by using AHP method, and the influence factors of thin-walled flexible parts are extracted, and the influence degree vector of the extracted attributes on the target layer is calculated by calculating the factors that affect the machining deformation of thin-walled flexible parts. The importance value of the influence factors on the machining deformation of each thin-walled flexible part is obtained. On this basis, the anti-deformation and cold-machining milling depth of thin-walled flexible parts is calculated by error compensation method. Based on the deformation prediction model of thin-walled flexible parts, the cutting parameters of thin-walled flexible parts are optimized. The objective function is to minimize the machining error of all thin-walled flexible parts. The experimental results show that the proposed method can effectively improve the shape and position accuracy of thin-walled flexible parts and has certain reference value for the deformation control of other thin-walled flexible parts of the same kind.
【作者单位】：潍坊科技学院;
【分类号】：TH161

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