Effect of welding methods on the magnitude of residual stresses in welding up cracks in grey cast iron casing components^*

* Selected from Svarochnoe Proizvodstvo 2017(4) 27–32.

Abstract

It is shown that the magnitude of residual stresses in welding up cracks in casing components is not sufficient to distort them and depends on the welding method. The behaviour of the residual stresses is the same for all methods investigated in these investigations. The deformation work of a welded joint in tensile or shear loading depends on the welding method and determines the probability of formation of weld zone cracks.

Keywords:

• Technician welding
• residual stresses
• grey cast iron
• housing parts
• cracks
• deformation
• strain measurement
• simulation
• distortion

Notes

* Selected from Svarochnoe Proizvodstvo 2017(4) 27–32.