Automatic Welding, 2016, №07



2016 №07 (04)

DOI of Article 10.15407/as2016.07.05

2016 №07 (06)

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Avtomaticheskaya Svarka (Automatic Welding), #7, 2016, pp. 28-34
 

Technological capabilities of vibration treatment of welded structures (Review)

G.I. Lashchenko

E.O. Paton Electric Welding Institute, NASU 11 Kazimir Malevich Str., 03680, Kiev, Ukraine. E-mail: office@paton.kiev.ua
 
 
Abstract
Analysis of technological capabilities of postweld vibration treatment and vibration treatment during welding was performed on the basis of available publications. It is shown that the technology of postweld vibration treatment is an effective means of lowering residual stresses and increasing dimensional stability of beam, frame and casing structures (machine-tool construction, mechanical engineering, shipbuilding, etc.) made of steel, titanium and aluminium alloys. Compared to high tempering, power consumption is reduced tens of times and productivity is increased. Vibration treatment during welding and surfacing is an effective means of lowering residual stresses, increasing mechanical properties and performance of structures, and improving weldability of a number of steel grades. However, experience of industrial application of this technology is so far insufficient for formulating clear recommendations on specific fields of its application. 41 Ref., 3 Figures.
 
Keywords: welded structures, residual stresses, vibration treatment, dimensional instability, increased fatigue resistance, weldability
 
 
Received:                11.03.16
Published:               02.08.16
 
 
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