MECHANICAL ASSEMBLY

Methods to Apply Required Torque forThreaded Fasteners1. Operator feel - not very accurate, but adequate formost assemblies2. Torque wrench –indicates amount of torque duringtightening3. Stall-motor - motorized wrench is set to stall whenrequired torque is reached4. Torque-turn tightening - fastener is initially tightenedto a low torque level and then rotated a specifiedadditional amount©2002 John Wiley & Sons, Inc. M. P. Groover, “Fundamentals of Modern Manufacturing 2/e”