Investigation on the behaviour of self-pierced rivets (SPR) in high strength 6xxx aluminium alloys

自穿孔铆钉（SPRs）是一种简单的工艺，其中相似和不同的材料连接。与焊接工艺相比，它们具有更多的使用优势。SPR在20世纪90年代初开始受到关注，当时奥迪采用SPR加入全铝奥迪A8的结构面板。除了车身应用外，该技术还被汽车工业用于连接排气隔热罩、备用车轮支架和电池支架。它们广泛用于制造现代飞机、车辆、建筑物、餐具、炊具、硬币、珠宝、火器和外科植入物。此外，SPRs的使用减少了燃料和车辆的消耗，减少了地球大气中的温室气体。然而，尽管它们被广泛使用，但人们对决定关节质量的因素知之甚少。

Self Pierced Rivets (SPRs) is a simple process where similar and dissimilar materials are joined. They have many more benefits of use compared to welding process. SPR rose to prominence in the early 1990s when it was adopted by Audi to join structural panels in the all Aluminium Audi A8. In addition to vehicle body applications the technique is also used by the automotive industry to join exhaust heat shields, spare wheel supports and battery mountings. They are widely used in manufacturing modern aircrafts, vehicles, buildings, cutlery, cookware, coins, jewellery, firearms and surgical implants. In addition the use of SPRs reduces fuel and vehicle consumption, decreases greenhouse gases in Earth's atmosphere. However despite their wide use, very little is known about the factors that determine the quality of joints.