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Journal of Material Sciences & Engineering

ISSN: 2169-0022

Open Access

Chennaiah MB

V.R Siddhartha Engineering College,
Vijayawada, Andhra Pradesh
India

Publications
  • Research Article
    Effect of Pulsed TIG Welding Parameters on the Microstructure and Micro-Hardness of AA6061 Joints
    Author(s): Chennaiah MB, Kumar PN and Rao KPChennaiah MB, Kumar PN and Rao KP

    Tungsten Inert Gas (TIG) welding process is generally used for welding of aluminum alloys. TIG process is generally preferred because it produces a very high quality weld. Distortion is the major problem in welding of thin sections. This distortion is controlled in pulsed and magnetic arc oscillation TIG process. The metallurgical advantages of pulsed TIG welding are grain refinement in fusion zone, reduced width of HAZ, less distortion, control of segregation, reduced hot sensitivity and residual stresses. It was observed that pulsed TIG welding produces finer grain structure of weld metal than conventional TIG welding (without arc pulsation). The mechanical properties (Hardness) and microstructure characteristic of weld metal depends upon the microstructure of the weld. The microstructure of the weld depends upon pulsed parameters peck current, base current, pulse frequency, pulse d.. Read More»
    DOI: 10.4172/2169-0022.1000182

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