If you work with AWS D1.1 you are probably familiar with the use of prequalified welding procedures. The use of prequalified WPSs provides many benefits to the fabricator, one of which is costs savings due being exempt from having to perform costly testing to qualify the welding procedure. However, if you are looking to save […]
Have you ever been in a situation in which you need a qualified welding procedure immediately? Maybe you just failed an audit and have to halt production until a valid welding procedure is provided. Or maybe you’re just in a hurry to get started with a new job. Regardless of the reason you need the […]
Prequalified welding procedures must adhere to the strict requiremnts of the welding codes which permit their use. AWS D1.1 Structural Welding Code (Steel) is one that allows their use. Prequalified WPSs are exempt from testing becasue there is reasonable assurance that as long as all the requirements are met the deposited weld will be sound […]
If you have taken or hope to take the CWI exam you probably have searched for some practice exam questions. In practicing for the code book portion of the test you may have come across a few questions for which you could find the answer, but didn’t really understand the importance of the question or […]
Have you ever seen a welding procedure specification with established amperage ranging from 200 to 550 amps? Or voltage ranging from 21 to 29 volts? Or some other variable with a huge window? This is all too common, but extremely dangerous. Why? Because changes to essential variables beyond that which is reasonable will affect the […]
Regardless what position you hold, if you work in the welding industry you have heard of welding procedures specifications (WPSs). To some, a welding procedure simply means the selection of a few variables such as amps and volts. To others, these are the documents that govern all welding done in their facility. A […]
The use of prequalified welding procedures has many advantages as well as many disadvantages. One danger of using prequalified welding procedures is that AWS D1.1 allows for quite a bit of freedom in weld sizes. If you look at Table 5.1 –Prequalified WPS Requirements of AWS D1.1/D1.1M:2020 Structural Welding Code (Steel) you’ll see that in […]
Have you ever developed, written, qualified or approved a welding procedure? If you have, what was the reason? To satisfy the requirements of a contract? To control quality? To improve productivity? To pass an audit? To help new welders? As welding consultants, CWIs and welding engineers we see hundreds of welding procedure specifications (WPSs) every […]
