ROLE OF WIRE ELECTRICAL DISCHARGE MACHINING IN THE PROCESS OF MEASURING THE RESIDUAL STRESSES OF WELDS: A REVIEW.

Residual stresses significantly influence the integrity and performance of welded structures. Accurate measurement and understanding of these residual stresses are essential to ensure the reliability and safety of welded parts. There are several methods used to measure residual stresses in welds, including the Center Hole Drilling (CHD) technique, Deep-Hole Drilling (DHD) technique, Contour method (CM), and Block Removal, Splitting, and Layering (BRSL) technique. Additionally, non-destructive measurement procedures like X-ray diffraction (XRD), neutron diffraction (ND), and synchrotron X-rays are used for analyzing residual stresses in welded components. The wire-cut electrical discharge machining technique is frequently utilized for small, precise cuts. Wire-cut electrical discharge machines are typically used to cut materials with hard structures and delicate geometries. Since this machining method is non-conventional, there is no contact between the tool (wire) and the workpiece, which is its main advantage. This gives it an advantage over other machining procedures and makes the procedure competent for machining even weakly structured and delicate materials. The function of wire electrical discharge machine in cutting has been discussed in this study to measure residual stresses in weldments by the contour method. [ABSTRACT FROM AUTHOR]