Wahl Correction Factor

Wahl correction factor, abbreviated as K, also called Wahl stress factor or spring stress correction factor, is a method to find out the effect of direct sheat and change in coil curvature in a spring.

 

Wahl correction factor formula

\(\large{ K = \frac{ 4\;C \;-\; 1  }{ 4\;C \;-\; 4 }  +  \frac{ 0.615 }{ C }  }\)

Where:

\(\large{ K }\) = stress correction factor

\(\large{ C }\) = spring index