Welding

Introduction to Welding Aluminum

Aluminum has many desirable qualities: it’s lightweight yet highly durable and resistant to corrosion. The metal is also an excellent conductor of electricity. These characteristics make aluminum a great choice for a wide range of applications in the aerospace, automotive, and other manufacturing industries. Current welding students could very well work with the metal after […]

Read More

Understanding Welding Current and Polarity

Welding is a hands-on job, but welders still have to have a fair amount of technical knowledge. One of the terms you will hear in class and in the shop a lot is “welding current.” You will see that welding machines and electrodes are labeled AC or DC, which describe the polarity of the welding […]

Read More

MIG Welder Setup Considerations

Proper arc welding equipment setup is one of the first things students learn in welding training. Since metal inert gas (MIG) welding is one of the first welding processes students are generally introduced to, they often receive instruction in setting up the machine. Following are some important considerations for working with a MIG welder. How […]

Read More

Which Type of Welding Is Best for Stainless Steel?

We love stainless steel. The way it shines back at us on our refrigerators or on a car is so aesthetically pleasing, 45.8 million metrics tons of stainless steel were produced worldwide in 2016. It’s great for the long haul too. It can adapt its corrosion resistance, strength and workability, depending on what metal alloy […]

Read More

What Are Welding Shielding Gases, And Why Are They Important?

Welders had been using shielding gases to protect their work since the 1920s, but when World War II began, these gases went from a niche practice to a commercial standard. If you’re a welder, or if you want to become a welder, you need to know these gases and how they’re applied to welding. They’re […]

Read More

Can You Weld Dissimilar Metals?

Welding dissimilar metals has been challenging as different metals have different melting points, but it is not impossible. 1 In 2015, a process for welding steel to aluminum was discovered, and GM launched a line of cars using this process in 2016. 2 How to Weld Dissimilar Metals When a project requires that dissimilar metals […]

Read More

Considerations for Self-Employed Welders

Have you always wanted to be self-employed? It’s an option when you complete your welding program and get some experience. An estimated 7 percent of the welding workforce is self-employed. Running your own business—even if it’s a one-person operation—comes with responsibilities welding employees typically wouldn’t have to deal with. What Is a Self-Employed Welder? Self-employed […]

Read More

What Are the Mechanical Properties of Metals?

Oftentimes welded structures and products are subject to a certain amount of force. How can one make sure his or her welding work won’t fail under pressure? While it’s important to know how to establish an arc and handle an electrode, understanding the mechanical properties of the materials being used can ensure the strongest, toughest […]

Read More

Welding Machine Overview

Welding machines or welding guns or welders are among the most essential tools for a welding professional. Welding machines generate heat that melts metal parts, so that these parts can be joined. However, there is no single welding machine that is suitable for all welding projects. Types of welding techniques Before you chose a welding […]

Read More

What Does Weldability Mean in Welding?

Can any metal be welded? Yes, but producing a strong, quality weld with some metals requires much more skill and care than with others. The ease with which metals can be fused without producing defects in the finished product is called “weldability.” 1 2 What Is Weldability? The American Welding Society defines weldability as, “the […]

Read More