How would you identify best nut factor for your application

Reference no: EM131305637

How would you identify the best nut factor for your application? How much torque would be required to tighten an ASTM A193 Gr. B16 bolt with a 31/4-8 thread to 60% of yield? Why does a wrench create a side load on the bolt being tightened?

Reference no: EM131305637

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Why do individual bolts relax a bit when first tightened : Name several factors that can increase the relaxation ? Which will tend to loose more preload after initial tightening, a short bolt or a long bolt? 8. What are the implications of your answer to question 7 above?

How can elastic interactions be reduced : Name several ways by which the loss of initial preload can be reduced ? Roughly how much embedment relaxation could we expect from new parts used in a non-gasketed, steel joint? Define elastic interactions. How can elastic interactions be reduce..

Name some of the problems created by incorrect torque : Name some of the problems created by incorrect torque ? How much preload do we want, in general? How much torque versus initial preload can you expect to encounter when tightening a group of unlubricated, as received, steel bolts?

What is meant by the term prevailing torque : Why do they differ? What limits the usefulness of the so-called, long-form torque-preload equation? Explain the difference between the coefficient of friction (m) and the nut factor (K ).

How would you identify best nut factor for your application : How much torque would be required to tighten an ASTM A193 Gr. B16 bolt with a 31/4-8 thread to 60% of yield? Why does a wrench create a side load on the bolt being tightened?

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What do we mean by the term torque reaction : A right angle nut runner is used to produce 500 ft-lb of torque on a bolt having a 7/8 -9 UNC thread. The tool is 18 in. long. How much reaction force, created by the reaction torque, will the operator feel? Is this a practical situation?

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