Search for dissertations about: "pre-sheath"

Found 1 swedish dissertation containing the word pre-sheath.

  1. 1. Modelling of cathode-plasma interaction in short high-intensity electric arc Application to Gas Tungsten Arc Welding

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Alireza Javidi Shirvan; Högskolan Väst.; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Production Technology; Produktionsteknik; Manufacturing and materials engineering; Produktions- och materialteknik; Electric arc discharge; sheath; pre-sheath; Knudsen layer; doped refractory cathode; arc-cathode coupling; Gas Tungsten Arc simulation; OpenFOAM.; electric arc discharge;

    Abstract : In arc welding the quality of the weld is strongly influenced by the thermal history of the workpiece which is itself governed by the electric arc heat source. The models for predicting weld properties thus need a good evaluation of the distribution of the heat input from thearc to the workpiece. READ MORE