True or False: You can VERY lightly stretch test a newly made or repaired spring before quenching or tempering?

True or False: You can VERY lightly stretch test a newly made or repaired spring before quenching or tempering, as long as you don鈥檛 stretch it to it鈥檚 fully intended or even normal travel limits.True or False: You can VERY lightly stretch test a newly made or repaired spring before quenching or tempering?
False.





At the point you are describing the steel is in the annealed state. If you look at a stress strain curve, the stress to a plastic deformation is something like a hundredth of what it is once tempered.





Further, since the steel's elastic region is so small, when you try and stretch the spring it generally doesn't have the strength to distribute the load you are putting on it across the coils before one of the plastically deforms, so you will end up with a non uniform spring.





ThinkingbladeTrue or False: You can VERY lightly stretch test a newly made or repaired spring before quenching or tempering?
I would not do that. Prior to tempering, the metal is still soft and can be distorted by any stretching.
always temper before testing!