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

自穿孔铆钉(SPR)是一种将相似和不同材料连接在一起的简单工艺。与焊接工艺相比，它们有更多的使用好处。20世纪90年代初，当奥迪采用SPR连接全铝奥迪A8的结构板时，SPR声名鹊起。除了车身应用之外，该技术还被汽车行业用来连接排气隔热罩、备用车轮支架和电池支架。它们被广泛用于制造现代飞机、车辆、建筑、餐具、烹饪用具、硬币、珠宝、枪支和外科植入物。此外，SPR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.