Properties of Tungsten Bucking Bar-1

A bucking bar is a tool that is placed on a work surface or the backside of a metal rivet to provide a cushioning counter in order to hammer rivets on the opposite side. It can also be used in operations that require impact fasteners. This includes applications involving tool heads and handle parts that have low recoil absorbing space. The bar size and weight usually depends on the alloy used and the rivet size required.

In everyday use, bucking bars undergo considerable stress. The bars are meant to withstand the impact when rivet guns deliver their impulsive blow. If the supporting metal alloy is rather soft, the bucking bar will quickly wear out and the necessary assembly support will not be achieved. On the flip side, if the metal alloy is very hard and brittle, the bucking bar will soon get fractured. Striking a balance between the tendency to crack and overall hardness is vital for success.

Recent research results indicate that bucking bars made of tungsten provide extra safety for operators through vibration reduction. Operators also get less fatigued and their chances of injury are significantly reduced. The density of tungsten is a reliable property that makes it ideal for future designs of bucking bars. Most bucking bar designs contain 90% tungsten. Deburred edges and polished working surfaces ensure trouble-free use.




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