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拉型抗剪钢环槽铆钉在国外已广泛应用于飞机和宇航器上。我国也已开始应用。这种铆钉,在钉杆部分有一圈一圈的环形槽,故起名为环槽铆钉。它包括钉头、钉杆、锁紧槽、断颈槽和尾段五个部分(图1)。用专用工具将铝合金高剪帽套一起冷挤压到钉杆锁紧糟中,使形成和钉齿互相啮合的齿形,成为永久形连接件,通过齿牙相啮合而获得锁紧力。这种铆钉与螺钉相比,具有重量轻,装配率高,不需锁紧装置等优点。与普通
Pull shear steel ring groove rivets in foreign countries has been widely used in aircraft and spacecraft. My country has also begun to apply. This rivet, in the shank part of a ring around the ring groove, so named ring groove rivets. It includes five parts: nail head, nail rod, locking groove, broken neck and tail section (Figure 1). Using special tools, the aluminum alloy high-sheathed cap sleeve is cold-pressed together into the lock of the shank with a special tool to form a tooth shape which intermeshes with the peg to become a permanent connecting piece, and the locking force is obtained through engagement of the tooth teeth. Compared with the screws, the rivets have the advantages of light weight, high assembly rate, no need of a locking device and the like. And ordinary