A Welding Procedure Specification (WPS) is a formal document that provides detailed
instructions on how to perform a specific welding operation. It is essential for ensuring that welds
are made consistently and meet the required standards. Here are the key components typically
included in a WPS:
1. Welding Process: Specifies the type of welding process to be used (e.g., MIG, TIG, Stick).
2. Base Materials: Details the materials to be welded, including their specifications and
grades.
3. Filler Materials: Lists the type and specifications of the filler materials to be used.
4. Joint Design: Describes the geometry and dimensions of the weld joint.
5. Position: Indicates the welding positions (e.g., flat, horizontal, vertical, overhead).
6. Preheat and Interpass Temperature: Specifies the required temperatures before and
during welding.
7. Welding Parameters: Includes details such as current, voltage, travel speed, and heat
input.
8. Shielding Gas: If applicable, specifies the type and flow rate of shielding gas.
9. Post-Weld Heat Treatment: Describes any heat treatment required after welding.
A WPS ensures that all welds are performed under controlled conditions, leading to consistent
quality and compliance with relevant standards.
If you have any more questions or need further details, feel free to ask!