Technician A says that the torque applied to the head bolts is the same as the clamping force on the gasket. Technician B says t
hat the clamping force is the force actually applied to the surfaces of the gasket. Who is correct? A. Technician B B. Technician A C. Neither Technicians A nor B D. Both Technicians A and B
Screw joining is one of the most common bonding elements in mechanical designs. This type of joint basically consists of a screw and parts to be joined. For the joint to be performed, it is necessary to apply a preload force to the screw, causing the parts to be compressed (joint force).
Preload force is achieved through the torque applied to the bolt and can be controlled in a variety of ways, including the ways spoken by technicians A and B, shown in the question above.
For this reason, we can say that both technicians are correct.
B is correct. The torque is modified by the pitch and friction resistance of the threads. The clamping force is the resultant force pulling the head to the gasket.
