Modes of Metal Transfer: Spray

Spray is a mode of metal transfer in which a fine spray of metal droplets are projected axially from the tip of the electrode to the work.  These droplets are smaller in diameter than the electrode.  This mode of transfer is characterized by high wire feed speeds (high amperage), high voltage and consequently high heat […]

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 […]

How to Control Welding Fumes

Engineering and work practice controls

We all know welding fumes are bad for your health.  Companies that do a lot of welding are paying special attention to this matter and trying to create better working environments not just for welders but for everyone in the shop.  Has your company taken any steps to reduce or control fume generation?  In this […]

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 […]

Who Is Required To Know Welding Symbols?

This is not limited only to welders and inspectors

Knowledge of welding symbols is not a requirement limited to welders. Many other professionals must have the ability to interpret and write welding symbols.  From estimators to designers to quality personnel, this universal language must be understood. In our last post we touched briefly on the importance of being able to interpret welding symbols.  If […]

Can You Read Welding Symbols?

Take the Welding Symbols Test to find out

Welding symbols are the universal language of the welding industry. They are used to communicate vital information regarding the details of a weld including: Joint details Weld size and length Weld sequence Contour finish Location Process Required inspection methods Penetration requirements Etc. Yet this important language is not understood by the vast majority of those […]

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 […]

Common Mistakes That Lead to Hydrogen Induced Cracking

Even when a qualified welding procedure is in place

Hydrogen Induced Cracking (HIC), also called hydrogen assisted cracking (HAC) and cold cracking, is a common welding defect when welding heavy steel sections and steels with high carbon content.  If you would like to learn more about the causes of HIC read Factors Influencing Hydrogen Induced Cracking. In the above mentioned article we explained that […]