The Basics of Weld Repair in Oregon

October 18, 2017
Posted in news
October 18, 2017 Bend Plating

The Basics of Weld Repair in Oregon

What happens when a welded joint breaks? Whether you’re working in manufacturing, construction, or heavy industry damaged or broken equipment can affect an entire day’s work. Not to mention, cause an enormous loss of profits. That’s why we’ve written this primer on weld repair in Oregon, and how you can get the job done and get back to business.

Here’s What You Need to Know About Weld Repair in Oregon

Step One: Remove Damaged Welding

If a welded joint breaks, the first step is to remove the welding altogether. There are two ways to do this. To remove welding from a crack, carbon arc gouging is the way to go. Carbon arc gouging uses a carbon electrode to melt the defective metal without harming the surrounding component. It then removes the molten metal using intense air pressure. It’s important to remove all of the defective metal to avoid further damage down the line.

To cut through metal, plasma cutters or oxy-fuel torches can be of help. Plasma cutters are faster, work best with electrically conductive metals, and produce a smaller cut width and heat-affected zone (HAZ) than oxy-fuel. Oxy-fuel, on the other hand, is one of the most popular methods of metal cutting. Developed by French engineers, the method uses a torch to melt metal using fuel gasses and oxygen.

Step Two: Prepare the Joint for Welding

Once you have removed the damaged metal, it’s time to prepare the joint for welding. Perhaps the most important part of this step is to choose an alloy that is comparable to the components being joined. Low quality or incompatible metals can cause further issues down the line—all of which can be avoided simply by using the correct materials.

Once you have chosen the appropriate alloy, prep the adjoining areas by cutting metal to the necessary size and beveling the edges to a 30-degree angle and cutting. Then thoroughly clean them of excess debris, oils, contaminants, paints, or rust. This will ensure a strong, reinforced weld with better penetration. If the amount of carbon in your material is more than .40%, you may need to preheat the area as well.

Step Three: Re-Weld the Joint

Once you have prepped the area for welding, it’s time to weld the joint back together. There are two primary methods of weld repair. The first is shielded metal arc welding which uses an electric current to melt the metals that need to be joined while shielding the area from contamination. This is the most popular method of welding used to repair joints, and it is especially common when using irons and steels.

The second method is flux-cored arc welding. This method was developed as an alternative to shielded metal arc welding so as to avoid the use of stick electrodes. This allows welders to avoid certain regulatory restrictions associated with them. It is also a better alternative for high nickel alloys, low alloy steels, and stainless steels.

For more information about weld repair in Oregon, contact Bend Plating to see how we might be able to help you repair your equipment quickly and efficiently so you can get back to work. We are the premier metal finisher working with gaming, automotive, marine, and medical manufacturers worldwide.

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