Forum Discussion
BenK
Oct 25, 2020Explorer
I also justify tool purchases because needed and then have them for future projects
FYI...when there are more than one fastener for a part, it is important to have them torqued evenly. Can't do that without a torque wrench or gauge (nifty torque gauge you found and now on my list)
Else, the lowest torqued will vibrate lose
It is not just clamping forces needed, but the expected vibration...frequence(s) and amplitude(s) are factored to the fastener's elasticity vs plastic point
Pretty sure these designers didn't go there and most likely looked at shear and clamping forces desired...plus some margin
Note that tge torque on the nut also has the same torque on the bolt. There are factors, one being the same K factor...aka friction on the respective mating surfaces
FYI...when there are more than one fastener for a part, it is important to have them torqued evenly. Can't do that without a torque wrench or gauge (nifty torque gauge you found and now on my list)
Else, the lowest torqued will vibrate lose
It is not just clamping forces needed, but the expected vibration...frequence(s) and amplitude(s) are factored to the fastener's elasticity vs plastic point
Pretty sure these designers didn't go there and most likely looked at shear and clamping forces desired...plus some margin
Note that tge torque on the nut also has the same torque on the bolt. There are factors, one being the same K factor...aka friction on the respective mating surfaces
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