We know that the various methods of Automatic and Semi-Automatic Additional processes of welding. ‘Plasma-arc’ welding is one of them. Plasma-arc welding is a substitute of TIG Arc Process, offering greater welding speed and better weld quality, for welding thin metal section current at 0.1A...
Plasma welding is very similar to TIG as the arc is formed between a pointed tungsten electrode and the workpiece. However, by positioning the electrode within the body of the torch, the plasma arc can be separated from the shielding gas envelope. Plasma is then forced through a fine-bore ...
The PAW (Plasma Arc Welding), which is a cutting method, was discovered in the year 1953 by “Robert Merrell Gage” and recognized in the year 1957. This procedure was unique as it can perform accuracy cutting on both thin and thick metal. This kind of welding is also competent for spra...
clearance to a square groove formed by materials to be welded in plasma arc welding of middle thickness or thick plates. CONSTITUTION:In welding middle thickness plates A, A, a square groove 1 is formed to the plates A, and the clearance delta therebetween is set at 1-4mm.,then the ...
Plasma transferred arc (PTA) welded coatings are used to improve surface properties of mechanical parts. Advantages are the high reliability of the process and the low dilution of substrate and coating material. Processing of surfaces by PTA welding is restricted at the time to flat horizontal posi...
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Plasma arc welding was used to join SiC/Al composite with titanium as alloying filler material. Microstructure of the weld was characterized by an optical microscope. The results show that the harmful needle-like phase AlC is completely eliminated in the weld of SiC/Al metal matrix composite(MMC...
A simulation tool that is valid within the field of tandem arc welding(unsteady, three dimensional thermal plasma flow) has been developed,based on the open source CFD package OpenFOAM. The validation of the electromagnetic part of the solver has been done separately using a problem with a know...
PURPOSE:To reduce a welding cost by irradiating diagonally a plasma arc in the weld line direction under a specified welding condition. CONSTITUTION:A torch 1 is provided diagonally against the direction of a weld line 3, and a plasma arc 4 is irradiated diagonally at an angle theta against ...
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