Doing this can improve the accuracy of simulations
As experience develops with the use of a particular stress and distortion PRM file, you may discover the need to improve the model's correlation with reality. For example, if distortion of parts is about 20% higher in simulations than in actual builds, you may want to scale the stress and distortion PRM file by an amount such as 83% to compensate. To improve the accuracy of future simulations, you can scale a PRM file up or down, as follows:
Enter a Scale Factor, based on 1.0 as the current value in the PRM file. For example, set a value of 0.5 to reduce the factor by half, or 1.2 to increase it by 20%.
The new PRM file has _scaled appended to the file name.