多层板高性能冲铆连接及铆钉形状合理性探讨

Investigation on multi-layer plates by high performance self-piercing riveting and rationality of rivet profile

简述了现代工业对轻量化板材需求的迫切性,分析了多层轻量化板材连接的传统工艺存在的不足,阐述了多层板材塑性变形连接方式中有铆钉和无铆钉两种工艺的原理和工艺过程、优缺点。主要论述了有铆钉的冲铆塑性连接工艺的发展历程、应用领域、塑性连接机理和材料塑性流动行为。重点研究了铆钉形状为杯型、软与硬圆柱型、腰鼓型、尖头螺钉刺穿型等的有铆钉冲铆塑性连接的工艺过程、连接机制及其连接性能。进一步总结了平底无铆连接、传统无铆连接、典型形状铆钉的锁铆连接、点焊、传统铆接、胶接等方式的连接质量及其特点。为工业实际中推广和应用多层板材有铆钉塑性变形连接方式奠定坚实的基础。

The urgent demand of modern industry for lightweight plates was briefly described,the shortcomings of the traditional process for connecting multi-layer lightweight plates were analyzed,and for the plastic deformation connection method of multi-layer plates,the principle,process,advantages and disadvantages of two processes with rivet and without rivet were expounded.Then,the development history,application fields,plastic connection mechanism and material plastic flow behavior for plastic connection process of self-piercing riveting with rivet were mainly discussed,and the process,connection mechanism and connection performance for plastic connection of self-piercing riveting with rivet shapes such as cup shapes,soft and hard cylindrical shape,waist drum shape and pointed screw piercing shape were manly studied.Furthermore,the connection quality and characteristics of flat-anvil cliching,traditional cliching,lock riveted connection of typical shape rivet,spot welding,traditional riveting and adhesive bonding were further summarized,which built the solid foundation for the popularization and application of multi-layer plates with rivet plastic deformation connection method in industrial practice.