Riveting requires the use of a rivet gun and a tungsten alloy bucking bar. Typically, the bucking bar is designed in various shapes and sizes depending on the rivet gun being used. In some cases, dedicated tungsten bucking bars may be designed for specific riveting tasks.
The reason for using high-density tungsten alloy to make bucking bars is because tungsten has high density, strength, and good machinability. Compared to traditional materials, a tungsten bucking bar of the same weight is only half the weight of a traditional one. This makes the bucking bar more versatile and suitable for use in tight spaces. The high density of tungsten alloy also reduces vibration and recoil during riveting.