Inorganic Materials: Applied Research

, Volume 9, Issue 6, pp 1169–1174 | Cite as

Calculation of Thermal Processes around Moving Molten Pool Using Boundary Element Method

  • V. A. KarkhinEmail author
  • P. N. Khomich
  • O. V. Panchenko
  • S. Yu. Ivanov

Abstract—A technique for the calculation of the steady-state temperature field in a solid part of a welded workpiece has been developed by using a moving weld pool size as input data and a boundary element method for solving the heat conduction problem. The technique allows one to calculate the effective power and thermal efficiency of a heat source. An example of a through-penetration arc welding with a tungsten electrode for the case of a 4-mm-thick aluminum alloy 1565chMU reveals the temperature gradient distributions and cooling rate at the pool boundary. A good agreement is observed between the calculated and experimental thermal cycles. The distribution of hardness in the cross section of a butt weld is presented.


arc welding aluminum alloy thermal conductivity boundary element method weld pool temperature field temperature gradient cooling rate 



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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • V. A. Karkhin
    • 1
    Email author
  • P. N. Khomich
    • 1
  • O. V. Panchenko
    • 1
  • S. Yu. Ivanov
    • 1
  1. 1.St. Petersburg Polytechnic UniversitySt. PetersburgRussia

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