The common mistake and root causes
Bolt joints are much more complicated that one might expect. When you tighten your bolt joints with some sort of hydraulic or pneumatic torque wrench, there is a great deal of uncertainty as to how much of the specified torque went into axial clamp load. And this uncertainty is linked to the friction in the joint.
In addition, other general root causes to avoid are relaxation and bolt ‘neighbour effects’. And a special root cause is Joint Face Angularity Error, meaning that the bolt joint suffers from unparallel planes. This leads to eccentric clamp load which in turn can lead to drastic reduction of the fatigue properties of the bolt joint.
All these mistakes and root causes can be addressed by using TensionCam. You need to be able to assure the correct clamp load in your industrial constructions. It is not only important – it is essential!