橡皮囊液压成形回弹补偿技术比较分析

橡皮囊液压成形工艺是航空钣金成形的主要方法之一,而回弹是影响其产品制造精度的主要缺陷。为提高航空钣金零件制造精准化制造水平,国内开展了大量的研究和实践,但各种方法的工程化应用程度并不理想。针对基于数值模拟的回弹预测方法和基于零件几何特征的快速回弹补偿方法进行综述,对比分析了两种方法的优缺点,并结合航空企业工程化应用实际需求提出将两种方法相结合的解决方案。

Comparative Analysis of Rubber Fluid Forming Springback Compensation Technology

Rubber fluid forming technology is one of the main methods for aviation sheet metal forming,whilethe springback is the main defect that affects the manufacturing precision of sheet metal products.In order to improve the manufacturing precision of the aviation manufacturing level,domestic researchers have carried out a lot of researches and practices,but the effect of engineering application of various methods is not ideal.In this paper,springback prediction method based on the numerical simulation and rapid springback compensation method based on geometric features of parts are reviewed,the advantages and disadvantages of the two methods are compared and analysed.Combining with the aviation enterprise engineering application and practical demand,the solution of combining the two methods is proposed.