Nondestructive Testing service providers

  As in any welding process,   safety precautions  are very important. All information relating to the safe operation of the welding equipment and process must be fully understood before beginning work. A careless welder who does not observe some simple rules can cause a dangerous situation for everyone. The process of  arc welding creates several hazards  which must be guarded against. If the welding machine has the characteristics of a transformer or a motor-generator design, electrical energy is required as primary power to operate it. Useful safety information can be found in the Owner’s Manual that comes with each item of welding equipment. 1.  Electrical Shock: Welders must be concerned about the possibility of electrical shock. It should be remembered that electricity will always take the path of least resistance. A welder should never weld while standing in water. If wet working conditions exist, certain measures should be taken. Such measures inclu...

  Levels of Certification AWS 1:2003 There are three levels of qualifications for welding inspector personnel. These levels are: AWI  – Associate Welding Inspector; WI  – Welding Inspector; SWI  – Senior Welding Inspector. 1.1)      Associate Welding Inspector (AWI): Shall be a  high school graduate , or hold a state or military  approved high school equivalency  diploma. Shall have a  minimum of two years’ experience  in an occupational function with a direct relationship to weldments fabricated to national or international standards and directly involved in one or more of the areas. 1.2)      Welding Inspector (WI):   Shall be a  high school graduate , or hold a state or military  approved high school  equivalency diploma. Shall have a  minimum of 5 years’ experience  in an occupational function with a direct relationship to welded assemblies fabricated to natio...

  Welding is a process of joining metals by process of heating.  Most of the weld made are manual. It is possible that the weld may have various defect formation due to parameters of welding and poor workmanship. Why is Welding Inspection Methods  important? Therefore the weld made should be tested for defects and quality of weld metal. To ensure the joint is strong and suitable for the purpose the product is designed for. The Welding inspection methods can be broadly divided into two types Destructive Testing and Non Destructive Testing   Destructive Testing otherwise called as Mechanical Testing. It is a qualitative analysis process, which identifies the qualities like Tensile Strength, % of elongation, Hardness, Toughness, Chemical Content of metal and Micro Structure formed during welding process. But destructive testing cannot be done on all the weld joints made. Instead it is carried out on a sample per lot. Mostly the a...