碳纤维连接结构钛合金铆钉电磁铆接试验研究  

Research on carbon fibers structure of electromagnetic riveting for titanium alloy rivet

作　　者：崔俊佳[1] 孙立强[2] 孟令博[2] 章茂云 

机构地区：[1]哈尔滨工业大学材料科学与工程学院,哈尔滨150001 [2]首都航天机械公司,北京100076

出　　处：《锻压技术》2013年第2期47-52,共6页Forging & Stamping Technology

摘　　要：电磁铆接是一种新型铆接工艺,与传统铆接相比,在高强度铆钉、复合材料铆接方面有其明显优势。本文通过对不同直径钛合金铆钉的电磁铆接预制孔径匹配试验,得出直径Φ4,Φ5和Φ6mm钛合金铆钉最佳预制孔径分别为Φ4.1,Φ5.2和Φ6.2/Φ6.3mm。针对小直径(Φ4和Φ5mm)钛合金铆接试样,气动铆接和电磁铆接在抗剪强度和微观组织方面相差不大,在大直径(Φ6mm)钛合金铆钉成形方面气动铆接远不如电磁铆接。电磁铆接技术可大幅度提高钛合金铆钉在碳纤维结构中的铆接质量,铆歪、开裂现象仅为0.5%。Electromagnetic riveting （EMR） is a new type of riveting process, which is obviously superior to the traditional riveting technique in riveting of high strength rivet and composites structure. Electromagnetic riveting precast aperture matching tests were carried out for titanium alloy rivets with the diameter of Ф4, Ф5 and Ф6 mm, the reasona ble bore diameters of Ф4. 1, Ф5.2, and Ф6.2/Ф6.3 mm were got. The shear strength and microstrueture are little distinction between pneumatic riveting and electromagnetic riveting for smaller diameter rivets （Ф4, Ф5 mm）, while in respect of lager diameter （Ф6 mm） titanium alloy rivet, pneumatic riveting is far worse than electromagnetic riveting. Electromagnetic riveting can highly enhance the riveting quality of titanium alloy rivet in carbon fibers structure, and the probability of cracking is only 0.5 %.

关 键 词：钛合金铆钉 电磁铆接 碳纤维 微观组织 

分 类 号：TG938[金属学及工艺—钳工工艺]