Scholarlink

<p>A method for reducing residual welding stresses is proposed, based on the combined application of electrodynamic treatment (EDT) of weld metal that is preloaded with elastic tension (PET). It is shown that the application of EDT reduces the magnitude of residual welding stresses, which creates the conditions for reducing the metal consumption and stiffness of the required equipment. It has been proven that the combined application of PET and EDT can contribute to the intensification of the mechanism for reducing residual welding stresses, which is based on the effect of electroplasticity acting under conditions of elastic deformation of the welded joint. It has been established that the use of EDT on welded joints made of AMg6 aluminum alloy, which are under PET conditions, allows for the application of 50% lower values of elastic tensile stress σ<sub><i>PET</i></sub> to reduce residual tensile welding stresses than in the absence of EDT. It has been proven that PET of a welded joint at σ<sub><i>PET</i></sub> = 90 MPa and the application of EDT and PET of the specified magnitude results in a reduction of residual welding tensile stresses in the AMg6 alloy by 20 and 85%, respectively. The use of the electroplastic effect creates the conditions for reducing the metal consumption and rigidity of the equipment for pretensioning and contributes to the development of force-based methods for regulating residual stresses in welded joints.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Electrodynamic Treatment of Welded Joints Under Conditions Preliminary Elastic Tension to Reduce Residual Welding Stresses

  • 期刊论文

  • 发表日期：

    2026年5月28日

查看全文
  • L. M. Lobanov,
  • V. V. Lysak,
  • O. L. Mikhodui,
  • M. O. Pashchyn,
  • I. P. Kondratenko,
  • V. V. Chopyk,
  • O. M. Karlov

摘要

A method for reducing residual welding stresses is proposed, based on the combined application of electrodynamic treatment (EDT) of weld metal that is preloaded with elastic tension (PET). It is shown that the application of EDT reduces the magnitude of residual welding stresses, which creates the conditions for reducing the metal consumption and stiffness of the required equipment. It has been proven that the combined application of PET and EDT can contribute to the intensification of the mechanism for reducing residual welding stresses, which is based on the effect of electroplasticity acting under conditions of elastic deformation of the welded joint. It has been established that the use of EDT on welded joints made of AMg6 aluminum alloy, which are under PET conditions, allows for the application of 50% lower values of elastic tensile stress σPET to reduce residual tensile welding stresses than in the absence of EDT. It has been proven that PET of a welded joint at σPET = 90 MPa and the application of EDT and PET of the specified magnitude results in a reduction of residual welding tensile stresses in the AMg6 alloy by 20 and 85%, respectively. The use of the electroplastic effect creates the conditions for reducing the metal consumption and rigidity of the equipment for pretensioning and contributes to the development of force-based methods for regulating residual stresses in welded joints.