DIPLOMA IN WELDING TECHNICIAN(DWT0220)
Operation of first aid Welding tools and equipment in arc and gas welding and maintenance Use of A.C. and D.C. welding machines. Common gases used in welding like Oxy-acetylene flames temperature and their uses Nomenclature of welding joints and welding symbols Welding position . Flat, horizontal, vertical, over head, slope and rotation. Principles of arc welding its characteristics. Arc length its effect, polarity, types, identification of wrong polarity Types of electrodes, objects of flux coating, characteristics of flame coding and specification of filter rod Regulators types, connection maintenance, type of blow pipe usage . Blow holes in welding structure and its effects and remedies. Faults welding and their remedies.