Tips for Passing the AWS 3G FCAW Certification

Passing the AWS Structural Welder Qualification Test (vertical up certification on Flux-Cored Arc Welding) can be problematic for some, but insuring the right procedures and techniques  are used should make things a lot easier.  The good thing about this qualification is that if passed it certifies the welder no just in the 3G position, but […]

9 Maintenance Problems that Cause Bad Welds

Maintenance-related problems are responsible for a large portion of bad welds in every day welding. However, these causes go unnoticed and unresolved because they happen slowly over time. A proper preventive maintenance program for welding machines, CNC cutting tables and other industrial equipment is absolutely necessary. Many of the problems related to maintenance that cause […]

How to Weld Titanium

Titanium is a metal which is silvery gray in color and has about half the density of steel (0.163 lb/in3).  Pure titanium is relatively soft has very low ultimate tensile strength.   For use in structural applications titanium is alloyed with chromium and iron, chromium and aluminum, manganese and aluminum and manganese alone.  These alloying elements […]

Effects of Shielding Gases in GMAW

Using the right shielding gas is essential not only to prevent porosity but to get proper penetration, the mechanical properties you desire including weld strength, and overall weld quality.  In order to select the right shielding gas you need to consider the following: –          Alloy of filler metal –          Material thickness –          Mode of GMAW […]

How to Weld Galvanized Steel

Galvanizing is the application of a zinc coating to a ferrous material. It is done to prevent, or at the very least delay corrosion. The zinc coating can be applied in many different ways including but not limited to hot-dipping, metal spray and electrodeposition.  Similar to galvanized steel is galvanneal steel.  Galvanneal is the process […]

The 3 Biggest Problems with Welding Procedures

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 […]

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 […]

What is Your Biggest Welding Problem?

Welding is a very complicated industrial process with many different variables.  Because of this there are an innumerable amount of problems we can experience when we weld.  From porosity and spatter to cracked welds, welding problems cost us a lot of money.  In some cases welding problems are severe enough to cause significant delays adding […]

Which Arc Welding Process is the Most Efficient?

This question can be answered very quickly.  Gas Metal Arc Welding (GMAW) and Submerged Arc Welding (SAW) can have 98-99% deposition efficiency.  However, the question is a bit more complicated since when we talk about efficiency we don’t just care about deposition efficiency (how much of the electrode becomes weld metal).  What we care about […]

Understanding Duty Cycle for Welding Machines

One of the specs we need to know about a particular welding machine is its duty cycle.  The duty cycle gives you an idea of how hard and how long you can run a welding machine before it overheats and shuts down.  Unfortunately at times we have issues with machines exceeding the duty cycle when it shouldn’t, […]