Scholarlink

<p>A solid-state method for connecting disparate materials without heat deterioration is electromagnetic welding (EMW). The objective of this study is to examine how discharge energy affects joint quality and residual stress distribution in EMW aluminium-to-PVC pipe welding. The experiments were conducted at 12.5&#xa0;kV, 13.5&#xa0;kV, and 14.5&#xa0;kV discharge voltages, and joint performance was measured with mechanical push shear testing, while residual stresses were analysed with X-ray diffraction (XRD). The development of electromagnetic force, magnetic flux density, and welding-induced stresses were described mathematically and the trend was validated with simulations. Increasing discharge energy was found to improve joint strength and interface bonding. The optimal discharge voltage of 13.5&#xa0;kV resulted in maximum shear load of 0.84 kN and residual compressive stress of − 19.7&#xa0;MPa. PVC deformation was seen, although the residual stress rose to − 25&#xa0;MPa at 14.5&#xa0;kV. While residual stress increased to − 25&#xa0;MPa at 14.5&#xa0;kV, PVC deformation was observed, indicating a threshold beyond which excessive energy results in material degradation. According to the results, increasing discharge energy improves joint strength and residual stress, however there is a limit beyond which material deformation compromises joint integrity.</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

Influence of Discharge Energy and Residual Stress in an Electromagnetically Welded Aluminium-PVC Tubular Joints

  • 期刊论文

  • 发表日期：

    2025年6月14日

查看全文
  • Shanthala Kollur,
  • T. N. Sreenivasa,
  • R. Krupa,
  • T. H. Manjunatha,
  • M. K. Venkatesh,
  • M. N. Gururaja,
  • B. S. Smitha,
  • Habib Masum,
  • C. Hemanth Kumar,
  • C. Durga Prasad

摘要

A solid-state method for connecting disparate materials without heat deterioration is electromagnetic welding (EMW). The objective of this study is to examine how discharge energy affects joint quality and residual stress distribution in EMW aluminium-to-PVC pipe welding. The experiments were conducted at 12.5 kV, 13.5 kV, and 14.5 kV discharge voltages, and joint performance was measured with mechanical push shear testing, while residual stresses were analysed with X-ray diffraction (XRD). The development of electromagnetic force, magnetic flux density, and welding-induced stresses were described mathematically and the trend was validated with simulations. Increasing discharge energy was found to improve joint strength and interface bonding. The optimal discharge voltage of 13.5 kV resulted in maximum shear load of 0.84 kN and residual compressive stress of − 19.7 MPa. PVC deformation was seen, although the residual stress rose to − 25 MPa at 14.5 kV. While residual stress increased to − 25 MPa at 14.5 kV, PVC deformation was observed, indicating a threshold beyond which excessive energy results in material degradation. According to the results, increasing discharge energy improves joint strength and residual stress, however there is a limit beyond which material deformation compromises joint integrity.