What effect does a failing torque wrench have on an assembly?

A failing torque wrench may lead to under-tightening because if the wrench is not calibrated correctly or is malfunctioning, it may not apply the proper amount of torque to the fastener. Using an inaccurately calibrated tool can result in fasteners being insufficiently tightened, which compromises the integrity of the assembly. This can lead to various issues, such as loosening over time, potential failures in the joint, and decreased overall performance of the mechanical assembly. Proper torque is essential for meeting the manufacturer's specifications, ensuring safety and functionality in the application. Maintaining a functional torque wrench is critical for achieving the desired tension in the assembly process.