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 […]

5 Ways to Increase Welder Efficiency

In our many years of working in the welding industry we have come across some phenomenal welders.  We continue to be impressed by the level of skill of quite a few of these men and women.  Unfortunately, many business owners allow this skilled labor to be underutilized.  Welder efficiency, which also goes by other names […]

Bigger (Weld) Is Not Always Better

When it comes to fillet welds, bigger is not always better.  A fillet weld is easy to measure, simply take out your fillet weld gauges measure it.  However, there is an incorrect assumption that a bigger weld (as measured with a fillet gauge) is always stronger than a smaller weld. Before we get into this […]

5 Methods to Determine Preheat Temperature

Preheat is used when a base material, due to its chemical composition, thickness or level or restraint, is susceptible to cold cracking.  Knowing what temperature to preheat your base metal is sometimes a complicated matter.  You may hear people say “preheat to 300F to be safe.”  The reality is that 300F may be playing it […]

Is It Time To Retire Your Old Welding Machines?

Those oldies-but-goodies may be costing you money

Thousands of manufacturing shops are full of old welding equipment.  We all want to be good stewards of our money or our company’s money, and we want to make things last as long as possible.  We sometimes even take pride on the fact that we have had a specific welding machine for 20-25 years. Most […]

5 Types of Tests for Welder Performance Qualification

Codes detail the requirements for performance qualifications of welders, welding operators and tack welders. Many codes do not demand that a Certified Welding Inspector (CWI) or a welding engineer conduct the necessary testing.  Unless your customer specifically asks that a CWI or third-party do this, you can simply follow the code yourself to perform all […]

7 Ways to Eliminate Porosity in Your Welds

Porosity is a weld discontinuity that is not as detrimental to structural integrity as cracks, undercut, overlap and lack of fusion. However, it is unsightly and when painted it looks absolutely horrible. Because it does not have sharp ends, porosity does not propagate like a crack. The reason why there are limits to the amount […]

Dangers of Using Prequalified Welding Procedures

Using prequalified welding procedures is a great tool provided by AWS D1.1 which can save time and money.  To learn about these advantages read “Benefits of Using Prequalified Welding Procedures.” However, you must be careful and have a sound understanding of Clause 3 of the Structural Welding Code for Steel – AWS D1.1.  Some of […]

Benefits of Using Prequalified Welding Procedures

Prequalified welding procedures are a great tool available to those who need qualified procedures in conformance with  AWS D1.1 Structural Welding Code – Steel.  However, there are strict requirements for the use of a prequalified welding procedures.  It is not as easy as picking a qualified joint and using filler metal manufacturer’s recommended procedures. There […]