The Paton Welding Journal, 2006, №09

2006 №09 (10)

2006 №09 (02)

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The Paton Welding Journal, 2006, #9, 2-8 pages

Improvement of fatigue resistance of welded joints in metal structures by high-frequency mechanical peening (Review)

L.M. Lobanov¹, V.I. Kirian¹, V.V. Knysh¹, G.I. Prokopenko²

¹E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.
²G.V. Kurdyumov Institute of Metal Physics, NASU, Kiev, Ukraine

Abstract
Results of studying the effectiveness of application of high-frequency mechanical peening (HFMP) to improve the fatigue resistance of welded Joints on steels of different strength classes and aluminium alloys have been generalized. General regularities are established of variation of fatigue resistance of welded Joints as a result of HFMP, determined by the mechanical properties of the material, level of concentration of working stresses, asymmetry of external loading cycle, magnitude and sign of the residual stresses induced by treatment in the concentrator zone. A procedure is developed for calculation-based prediction of the effectiveness of HFMP, depending on the above factors.
Keywords: steels, aluminium alloys, welded joints, stress concentration, residual stresses, fatigue resistance, high-frequency mechanical peening, ultrasonic treatment

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Suggested Citation

L.M. Lobanov, V.I. Kyrian, V.V. Knysh, G.I. Prokopenko (2006) Improvement of fatigue resistance of welded joints in metal structures by high-frequency mechanical peening (Review) ... 2. The Paton Welding J., 09, 2-8.

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