Study on Welding Procedure Specifications as Per ASME Sec IX

A welding procedure Specification (WPS) is the formal written document describing welding procedures, which provides direction to the welder or welding operators for making sound and quality production welds as per the code requirements. The purpose of the document is to guide welders to the accepted procedures so that repeatable and trusted welding techniques are used. A WPS is developed for each material alloy and for each welding type used. Specific codes and/or engineering societies are often the driving force behind the development of a company's WPS. A WPS is supported by a Procedure Qualification Record (PQR or WPQR). A PQR is a record of a test weld performed and tested (more rigorously) to ensure that the procedure will produce a good weld. It is the responsibility of every individual organization to conduct the welding procedures and welder qualifications tests and record and follow up the code like boiler pressure vessel code ASME section IX.The scope of our project is to understand the requirements of the pressure vessel code with regards to the maintenance of quality of welding and how it is ensured. We will prepare a welding procedure as per the boiler pressure vessel code, witness the welding for monitoring the welding variables like current, voltage, type of electrode, type of material etc. Witnessing the mechanical tests like Tensile Test, Bend Test of the test specimens which are prepared as per the standard.