Steady State Calculations of Stationary Gas Tungsten Arc Welding from A Unified Arc-Electrodes Model(Physics, Processes, Instruments & Measurements)

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Author(s)

Abstract

In order to clarify the formative mechanism of weld penetration in an arc welding process, the development of a numerical model of the process is quite useful for understanding quantitative values of the balances of mass, energy and force in the welding phenomena, because there is still a lack of understanding due to the existence of complicated interactive phenomena between the arc plasma and the weld pool. The present paper is focused on a stationary gas tungsten arc (GTA) welding process for simplification, but the whole region of GTA welding, namely, tungsten cathode, arc plasma, work-piece and weld pool is treated in a unified numerical model so as to take into account the close interaction between the arc plasma and the weld pool. The two-dimensional distributions of temperature and velocity in the whole region of GTA welding process are predicted. The weld penetration geometry is also predicted.

Journal

  • Transactions of JWRI

    Transactions of JWRI 31(1), 19-24, 2002-09

    Osaka University

Codes

  • NII Article ID (NAID)
    110006486135
  • NII NACSIS-CAT ID (NCID)
    AA00867058
  • Text Lang
    ENG
  • ISSN
    03874508
  • Data Source
    NII-ELS 
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