what is welding process specification
Answers
Answer:
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. Individual welders are certified with a qualification test documented in a Welder Qualification Test Record (WQTR) that shows they have the understanding and demonstrated ability to work within the specified WPS.
Explanation:
Welding process specification
Explanation :
- A welding process specification (WPS) is a list of the many welding procedures and techniques that can be utilised with different metals and alloys.
- A professionally qualified welder can use the WPS sheet to repeat the same outcomes every time.
- A test weld is used to determine the specification, which is recorded in the procedure qualification record (PQR).
- Several large industry groups require the usage of these requirements.