I was talking to a class recently and I was trying to drive home the thought of how much error can be in a torque value. With all the factors (thread condition, lubrication, stable coefficient of friction,etc) they all add up to more and more inaccuracies. But the world believes that a torque value is very accurate and scientific.
Well I tried to make the comparison of reading a torque wrench is like reading a faulty speedometer. The torque wrench will give you value just like a speedometer but it is not accurate to the "real" tension on the bolt.
If a police officer pulls you over you will still get a ticket if you have a bad readout.
I know, it needs some work..
Well I tried to make the comparison of reading a torque wrench is like reading a faulty speedometer. The torque wrench will give you value just like a speedometer but it is not accurate to the "real" tension on the bolt.
If a police officer pulls you over you will still get a ticket if you have a bad readout.
I know, it needs some work..