How to Qualify Welders for Internal Purposes

Whenever we think about qualifying welders we typically think about welding codes such as one of the AWS structural welding codes, API 1104 or ASME Section IX.  In most cases qualifications are carried out to comply with a customer requirement. But what if you simply want to qualify your welders as part of your own […]

Common Tests for Welder Performance Qualification

The purpose of welder performance qualifications is to ensure that the welder can deposit sound welds.  There are several tests, both destructive and nondestructive, that are used to evaluate a welder’s ability to deposit good welds.  Below are four of the most common test applied for these qualifications:   Visual Inspection (VT) Visual inspection is […]

Pick Your Prequalified Welding Procedures Carefully

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 […]

Fillet Weld Leg Sizes Are Meaningless!

Measuring fillet weld legs is meaningless, well… not really.  Fillet weld leg sizes are very important, but simply measuring the leg of a fillet weld does not tell us if we actually achieved the desired throat dimension.  The strength of a fillet weld is determined by its effective throat.  As you can see in the […]

3 Methods To Keep Track of WPSs, PQRs & WPQRs

Not having a good system to keep track of qualification documents can cost you a lot of money

Keeping track of welding procedure specifications (WPSs), procedure qualification records (PQRs) and performance qualification records (WPQRs) can become a tedious task.  A simple WPS and PQR may not seem like much, but a medium to large contract may require you to qualify 5-10 welding procedures procedures along with 15-20 welders. If this is the case […]

11 Reasons Why Welders Don’t Follow Welding Procedures

The purpose of having welding procedures specifications (WPS) is to ensure quality. This is accomplished by giving the welder a detailed set of instruction on how to deposit weld metal for a specific joint.  Consistent quality can be achieved, but there is one caveat.  The welding procedures must be well written.  A poorly written welding […]

What is a Standard Welding Procedure Specification

If you have worked with the American Welding Society codes, you have probably heard about Standard Welding Procedures Specifications (SWPSs). A SWPS is define by AWS as a welding procedure specification qualified according to the requirements of AWS B2.1/B2.1M, approved by AWS, and made available for production welding by companies or individuals other than those […]

How To Qualify Welders

One of the most common requests for help that we get pertains to the qualification of welders. Our customers win a contract and later find out they need to qualify their welders.  Often, they realize this right before production is to begin and scramble to get their qualifications done.  Even worse, they may also need […]

Etching Solutions for Steel, Stainless, Aluminum and Other Metals

For high-quality macro-etches

The qualification of welders and welding procedures often involves macro-examination of welds.  Performing macro-etches is a relatively simple procedure, but strict guidelines must be followed to ensure safety.  Most chemicals used in etching solutions are hazardous and must be handled accordingly.  Any person etching with these chemicals must be familiarize him or herself with the […]