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Development of oil and gas deposits

Improvement of quality of dissimilar welded joints made of pipelines steels by application of vibromechanical treatment in welding

Authors:
O. F. Khafizova
  • Saint Petersburg State Mining Institute (Technical University)
Date submitted:
2016-12-08
Date published:
2011-01-01

Abstract

The article describes opportunity of improvement of physical-mechanical properties of welded joint made of different strength grade pipeline steels (Steel 20 of K42 strength grade and 16ГС – K52) by applying vibration during the welding cycle. It’s shown that maximal positive effect is achieved by vibration frequency approximating to natural-vibration frequency of welded construction.

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