DIFFRACTION ANALYSIS OF SURFACE RESIDUAL STRESS DISTRIBUTION ON LASER WELDED STEEL PLATES

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  • TITLE: DIFFRACTION ANALYSIS OF SURFACE RESIDUAL STRESS DISTRIBUTION ON LASER WELDED STEEL PLATES
  • AUTHOR(S): K. Trojan, N. Ganev, S. Němeček, J. Čapek, J. Němeček
  • ABSTRACT: The manufacturing processes of machine component introduce residual stresses (RS) that have an essential influence on their behaviour during service life. The purpose of this study is to evaluate the RS distribution of welds joined using high power diode laser. The paper outlines the capability of X-ray diffraction to describe a state of RS of high pressure welds made of P355 steel. The results from this paper show that laser welding has application potential in the welding of steels for pressure equipment.
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