What Is Wps In Welding?

Welding is a fabrication or sculpture process which is used to join metals or thermoplastics by melting them together. According to American Welding Society, it is estimated that there are over 450 million welders in the workforce around the globe with approximately

4 million in the United States alone. With such vast numbers, it is essential to understand the fundamentals of welding, such as what is WPS in welding. WPS, also known as welding procedure specification is an essential part of welding which must adhere to strict guidelines.

What is WPS in Welding?

Welding is a common process used in manufacturing and repairs. It involves fusing two or more pieces of metal together into one, often with an additional filler material.

In order to ensure the quality of the weld, there are a number of factors to consider, including the type of filler metals used and how the welding process is performed. One of the most important components in welding is the Welding Procedure Specification (WPS).

What is a WPS?

A WPS is a document that defines the parameters of a welding process. It includes details such as the type of filler material, methods of forming the joint and any other process variables.

By having a detailed description of all the welding variables, welders and engineers are able to ensure that the weld is going to be of a certain quality and strength.

Why is a WPS Important?

Using a WPS is important for several reasons. First, it ensures that the weld is going to meet the desired quality and strength requirements. This helps prevent re-welding and costly repairs and delays.

A WPS also helps keep the welders and engineers on the same page, as they can refer back to the same document while performing different welding works. Lastly, a WPS helps provide a safe work environment by providing standards and procedures to follow when welding.

What is Included in a WPS?

A WPS typically includes a range of information, including the base and filler materials, joint types and techniques, joint preparation, preheating, interpass temperature, gas shielding, electrode polarity and current, welding speed and weaving techniques. Additionally, there is detailed information on the post-welding requirements, like cleaning and non-destructive testing. Finally, the welding parameters are recorded and documented so the welding process can be verified for compliance for any future welding activities.


In conclusion, WPS is an essential part of any welding process. It provides the welders and engineers with the necessary information to properly complete the weld and assures that the weld will meet quality requirements. A WPS also helps keep the workers safe, by providing detailed instructions on the welding process. References:https://www. pipemasterservices. com/what-is-a-welding-procedure-specification-wps/https://www. totalmateria. com/article/what-is-a-welding-procedure-specificationhttps://www. lincolnelectric. com/en-us/knowledge/welding-questions/pages/what-is-a-welding-procedure-specification-wps. aspx

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