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Title:Comparative study on self-piercing riveting and flow drilled screw joining for steel-aluminium and aluminium-aluminium joints
Authors: Ding Zhiyong1  Li Haiyang 1  Gu Chengbo2 
Unit: 1. Product Research and Development Institute  Jiangling Motors Co. Ltd. 2. AISN Innovative Design and Manufacturing Co.  Ltd. 
KeyWords: steel-aluminium joints aluminium-aluminium joints self-piercing riveting flow drilled screws peak force energy absorption 
ClassificationCode:TG938
year,vol(issue):pagenumber:2024,49(4):138-145
Abstract:

 For four kinds of materials of high-strength steel, extruded aluminium and two types of die-casting aluminium used in automotive, steel-aluminium (SA) and aluminium-aluminium (AA) joints were established by self-piercing riveting (SPR) and flow drilled screws (FDS), and the influences of thickness, material and lap sequence on the forming quality and mechanical properties of the two kinds of joints were compared and studied by tests. The results show that in SA joints, the peak force of SPR joint is better than that of FDS joint in the whole, but the energy absorption is lower than that of the latter. FDS joint is less affected by screw fracture, while the energy absorption of SPR joint decreases significantly after rivet fracture. For AA joints, the peak force and energy absorption of FDS joint are better than those of SPR joint, and the peak force and energy absorption of FDS joint can be improved by placing the thicker plate in the lower layer. For the similar joint, the overall performance of AA joint is better than that of SA joint.

Funds:
广西重点研发计划(桂科AB23026104);广东省重点领域研发计划项目(2022B0909070001)
AuthorIntro:
作者简介:丁志勇(1972-),男,学士,高级工程师 E-mail:zyding@jmc.com.cn 通信作者:顾成波(1986-),男,硕士,高级工程师 E-mail:gu_chengbo@126.com
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