Modes of Metal Transfer: Globular

In our last post we explained short circuit transfer; if you missed it you can go back and read Modes of Metal Transfer: Short Circuit.  In this post we’ll spend some time going over globular transfer by covering its basics as well as its advantages and limitations. Globular transfer occurs in GMAW and MCAW processes […]

3 Ways to Improve Out of Position Welding

Welding out of position does not need to be overly complicated.  It does present a challenge, especially for inexperienced welders, but there are things we can do to make this go well for everyone.  When we talk about out of position welding we mean welding vertical up or overhead. Although vertical down is technically out […]

7 Reasons to Consider Stick Welding Over Other Processes

Shielded metal arc welding (SMAW), or what we commonly call stick welding, is one of the oldest welding processes.  Despite being one of the first processes developed, it remains one of the most, if not the most used welding process worldwide.  If you have been working in a fabrication shop for years and using advanced […]

Should You Consider a Different Shielding Gas

GMAW (mig welding) uses shielding gas to protect the weld puddle from the atmosphere while in a molten state.  This is general knowledge, but many in our industry believe this is the only function of the shielding gas.  Shielding gases can affect welding in many different ways and an evaluation of your current choice of […]

Causes of Porosity in Submerged Arc Welds

Submerged arc welding is typically done automatically, meaning it is not done by hand but rather it is set up as hard automation.  The operator simply controls the welding machine and torch position to obtain the desired results.  Typically the system is run by an operator and not a welder.  So when problems arise the […]

Is Weld Strength Affected by Shielding Gas Mix?

Can our selection of shielding gas affect the strength of a weld and other important mechanical properties?  Absolutely!  The difference is more pronounced when using flux-cored (FCAW) wires than when using mig (GMAW) wires, especially as the wire’s tensile strength goes up.   Although we can affect strength by using different gases, what we should be […]

7 Variables That Affect Weld Penetration

Getting deeper penetration, or at least adequate penetration is very important in welding.  There are a few applications in which we wish to minimize penetration, but in general we always want good penetration.  There are many variables that affect penetration, some more than others.  It is important to know how each individual variable affects the […]

Proper Storage of Welding Consumables

How to store stick electrodes, and mig, flux-cored and metal-cored wires

Proper storage of both opened and unopened packages of welding consumables is crucial. It should avoid quality issues such as porosity, excessive slag fluidity, rough weld surface, difficult slag removal and more importantly, elevated levels of diffusible hydrogen which can lead to cracking. Adequate storage, handling and re-conditioning of electrodes vary according to type.  The […]