A Welding Procedure Specification (WPS) is a document that is a guide for the effective creation of a weld to meet all applicable code requirements and production standards. A WPS is a document that describes how welding is to be carried out in production. Welding Procedure Specification (WPS) is a written and detailed document for the welding operations.It explains a prescribed description of the welding process, gases and flow rates, the joint design and geometry, the base materials used, welding position including various variables. This article provides you with information about the essential variable in welding procedure specification based on requirements of ASME Code Section IX. WPS: It stands for welding procedure specification which is a document directing welding personnel (supervisors, welders, operators) for details like the Type of Joints, Base metals, Filler metals, Position, Preheat, PWHT, Gas(es), Electrical characteristics and Technique to … What Is Welding? What Are Welding Procedures ? Welding Procedure Specification (WPS) Before any welding activity can commence, the welder and the QC Engineer has to be fully aware of the content of the welding procedure specification, WPS. A WPS is supported by a Procedure Qualification Record (PQR or WPQR). This document is produced by the welding engineer in order to ensure the quality and correct design output of … WPS vs PQR “WPS” (Welding Procedure Specification) and “PQR” (Procedure Qualification Record) are documents that refer to the practice of welding. It contains all the necessary parameters viz. What is the Essential Variable in Welding Procedure Specification (WPS)? A WPS is developed for each material alloy and for each welding type used. Welding Procedure Specification’s (WPS) Presented By John Lucas Welding Engineer UTI Corporation. It aids in planning and ensuring quality control of the welded product as well as future reproductions of the product. ASME Boiler and Pressure Vessel Code Section IX also makes very good guidelines and limitations about welding positions in WPS for the specific welding process. WPS Qualified Range (ASME IX Guideline): Qualified Positions (Groove, Fillet): All Positions for Plate or Pipe. A Welding Procedure Specification (WPS) is a formal document describing welding procedures. The welding … See how the ProWrite software can create a WPS in under 90 seconds! Alright, the parameters are fixed and the work may begin. 1G, 2G, 5G, 6G Welding Positions limitation in WPS. WPS: A WPS or a welding procedure specification is a written document that gives direction to the welder (or welding operator) to produce a sound weld that shall meet the minimum required mechanical properties. (including ranges, if any) under which the welding … Unless specifically required otherwise by the welding variables (QW-250), a qualification in any position qualifies the procedure for all positions. The traditional way to produce a WPS can be tedious. Then, so my assumption, the WPS is founded on parameters been provided by even a particular welding power supply, let's assume it was a "dark red" one. What is Welding Procedure Specification (WPS)? They are recommended for all welding operations and most application codes and standards make them mandatory. AWS defines welding as: “ The art and science of joining metals by using the intrinsic adhesive and cohesive forces of attraction that exist within metals”. Qualification is generally made to ASME IX, Qualification Standard for Welding & Brazing Procedures, Welders, Brazers, and Welding and Brazing Operators … A welding procedure specification (WPS) is a written document providing direction to the welder (or welding operator). WPS is a set of welding instructions. joints, base metals, filler metals, positions, preheat, PWHT, gas etc. Its purpose is to aid the planning and quality control of the welding operation.