18.4 Chapter Conclusion
David Colameco, M.Ed.
Summary
This chapter presented what a Welding Procedure Specification is, why it is used, how it is developed, and provided an example that was broken down into pieces for discussion. A WPS is a type of document that is important for welders to know how to read since it is a common way of presenting the information needed to weld.
While welding procedures may look different from company to company, they all contain similar information in similar groupings that may or may not be in the same order. The more WPSs you encounter and use, the easier they will become to read.
Review Questions
- Who uses a WPS? Select all that apply.
- Welders
- Welding Inspectors
- Welding Supervisors
- Customers
- What information is contained on a WPS? Select all that apply.
- Base Material
- Welding Process
- Break times
- Machine settings
- What information may be included as an attachment? Select all that apply
- Joint Designs
- Your favorite cookie recipe
- Information that may help the welder or welding operator
- None of the Above
- What is contained in the in the WPS fields at the top of the first page of a WPS? Select all that apply.
- Name of the company
- WPS Number
- Weld deposit chemistry
- Date
- Revision number
- What positions are specified in the WPS
- Flat
- Horizontal
- Vertical
- Overhead
- In the NASA WPS “Welding Procedure” why is Tungsten Size and Type marked “N/A”
- Tungsten is optional with FCAW
- Tungsten is not used with FCAW
- Tungsten Size or Type is not listed on the WPS
- None of the above
- What method is used for back gouging?
- Carbon Arc
- Plasma
- Oxy-Fuel
- None
- What is the “Maximum interpass temperature (°F)?
- 200 °F
- 300 °F
- 400 °F
- 500 °F
- The maximum interpass temperature is not listed on the WPS
- What methods of cleaning are specified in the WPS?
- Chipping Hammer
- Grinding
- Wire wheel
- Power brush
- What shielding gas is used in the WPS?
- No shielding gas is used
- 50% Argon / 50% CO2
- 70% Argon / 30% CO2
- 75% Argon / 25% CO2
- 100% Helium
- What year was the WPS signed?
- 1989
- 1999
- 2009
- 2019
- Why are materials placed in groups by AWS?
- Grouping materials is fun, so why not?
- To make it easier to use a single PQR for more than one WPS
- To make welders have to learn one more thing about welding
- There is no purpose to material groups with AWS welding codes
- In your own words describe how a WPS is similar to a blueprint in how they look from company to company.
- In your own words explain why a WPS is important to a welder or welding operator.