The weight of bucking bars
When working with solid rivets, using the proper bucking bar weight is essential. Using too heavy a bucking bar can result in flattening out the bucktail beyond limits, and too light a bucking bar will result in work hardening the rivet before the desired bucktail flattening is achieved.
In addition, the proper bucking bar shape is crucial. If the bar does not have the correct shape, it can deform the bucktail. The face of the bucking bar should always be held at right angles to the rivet shank.
The person holding the bucking bar should hold it in place until the rivet is completely driven. Failing to do so may cause the rivet set to be driven through the surface. Do not bear down too hard on the rivet shank with the bucking bar. Allow the weight of the bucking bar to do the work. The hands should be merely a guide to the bar, supplying the necessary tension and rebound action.
More detail can be find from www.buckingbar.com.cn.
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