金属铆接用的铆钉,一般有三种形式:即开口铆钉、半管状铆钉和尖头铆钉。其中尖头铆钉与其它类型铆钉相比更象钉子,因为它没有敲弯部分,而且不必整个地穿过基层。这种铆钉常用于轻负载的场合,例如把铭牌铆接于金属零件上等。开口铆钉用两叉尖穿轧于被连接的材料,半管状铆钉先穿过铆孔。然后在杆的端部环孔铆平,并可使这一区域特别坚固。尖头型铆钉则用尖端冲孔,在基层上形成一陷穴。接着,陷穴的凸出部分受到坚硬的尖部挤压(顶锻) Rivets used for metal riveting generally have three forms: open rivets, semi-tubular rivets and pointed rivets. Tip rivets are more nail-like than other types of rivets because they do not have a clincher and do not have to pass through the base entirely. Such rivets are commonly used in light-duty applications such as riveting nameplates on metal parts and the like. Open rivets pierce the material to be joined with two prongs, and the semi-tubular rivets first pass through the rivet holes. The rims are then riveted flat at the ends of the rod and make this area particularly robust. Tip-type rivets are punctured with a hole in the grassroots to form a sink hole. Then, the protruding part of the sink is pressed hard by the tip (upset)