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O. F. Khafizova
O. F. Khafizova
post-graduate student
Saint Petersburg State Mining Institute (Technical University)
post-graduate student
Saint Petersburg State Mining Institute (Technical University)

Articles

Manufacturing machinery and equipment
  • Date submitted
    2013-09-06
  • Date accepted
    2013-11-06
  • Date published
    2014-03-01

Technology options for improvement mechanical properties of welded joints made of steel 09Г2С

Article preview

The article describes opportunity to improve mechanical properties of welded joints made of steel 09Г2С applying vibration during the welding cycle. The methodology of experimental studies with a description of the oscillation superposition scheme with different frequencies of treatment during welding is carried out. The results of metallographic study and impact strength tests of welded samples are presented.

How to cite: Khafizova O.F., Fairushin A.M., Karetnikov D.V. Technology options for improvement mechanical properties of welded joints made of steel 09Г2С // Journal of Mining Institute. 2014. Vol. 209. p. 104.
Development of oil and gas deposits
  • Date submitted
    2010-07-07
  • Date accepted
    2010-09-06
  • Date published
    2011-01-01

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

Article preview

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.

How to cite: Khafizova O.F. Improvement of quality of dissimilar welded joints made of pipelines steels by application of vibromechanical treatment in welding // Journal of Mining Institute. 2011. Vol. 189. p. 191-194.
Development of oil and gas deposits
  • Date submitted
    2010-07-15
  • Date accepted
    2010-09-13
  • Date published
    2011-01-01

Experimental setup for research Influence of vibromechanical treatment on mechanical properties of welded joints

Article preview

The description of developed experimental setup for welding product that made of pipeline steels with application of applying vibration with intended frequency approximating to natural-vibration frequency of welded construction unit of pipelines during the welding cycle is presented.

How to cite: Khafizova O.F., Bolobov V.I. Experimental setup for research Influence of vibromechanical treatment on mechanical properties of welded joints // Journal of Mining Institute. 2011. Vol. 189. p. 195-197.
Geotechnical engineering, powerengineering and automation
  • Date submitted
    2008-08-24
  • Date accepted
    2008-10-18
  • Date published
    2009-02-01

Improvement of quality of manufacture of petrochemical devices and gas-oil pipelines by application of vibration treatment during welding

Article preview

The paper presents research results into the influence of vibration treatment, applied during welding, on enhancing stability of the welded product shapes, mechanical properties and microstructure of the resulting welded joints.

How to cite: Khafizova O.F. Improvement of quality of manufacture of petrochemical devices and gas-oil pipelines by application of vibration treatment during welding // Journal of Mining Institute. 2009. Vol. 181. p. 141-143.