Abstract
The present study aims at investigation of residual stresses at the interface of dissimilar metal weld (DMW) joint formed by transition grading of materials. These stresses always cause the failure of the welds earlier than the expected life. The conventional welding techniques used creates the complexities in weld due to difference in composition and properties of joining metals. The sharp changes in composition at the interfaces are undesirable and increase residual stresses. The transition grading technique such as Laser Engineered Net Shaping uses deposition process to control the composition and properties of joining metal as function of its position. The finite element analysis in ANSYS is carried out for metal joint of SA335 GR 11 and SA312 TP 304 alloys. The effect of loading conditions and number of layers of deposition on the residual stresses at room temperature are investigated.
Published Version
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