大型构件蠕变时效成形技术研究

Research on Creep Age Forming Technology for Large Integrated Component

蠕变时效成形技术是为实现大型整体壁板构件高性能与精确成形协同制造而发展起来的一种新型钣金成形方法。分析了大型整体壁板构件的特点和蠕变时效成形技术的原理,从蠕变时效材料本构建模、模具型面回弹补偿和模具设计3个关键方面重点阐述了蠕变时效成形技术的研究进展,并且从材料本构向构件本构发展、蠕变成形向塑变与蠕变复合成形发展和简单热力能场向多级复合能场时效成形发展3个研究热点阐述了该技术进一步发展面临的挑战。

Creep age forming technology is a new sheet metal forming method developed for the collaborative manufacturing of large-scale integrated panel components with high property performance and precise forming configuration. Research progress in terms of creep age constitutive modelling, mould surface springback compensation and die design is systematically reviewed. Furthermore, the challenges of this technology are introduced from three hot research areas including the developments of constitutive modelling from material scale to component scale, deformation style from creep deformation to the combined deformation of creep and plastic, and forming condition from simple thermal-mechanical field to multistage compound energy fields.