Impact of Residual Stresses on Accuracy of AWJ Cutting
As the accuracy of abrasive waterjet (AWJ) machines is improving, a wider range of process variables are receiving attention regarding their impact on the accuracy of AWJ cut parts. Residual stress is one of these process variables. In this experimental study, AWJ tests cutting steel samples with and without residual stresses were conducted. The results indicated a strong link between residual stresses and part accuracy. An annealing process was used effectively to eliminate the residual stresses. A practical test was created to determine residual stress conditions and help decide if stress relief operations are necessary.