What is Carbon Arc Welding? Equipment and Working

What is Carbon Arc Welding?

Carbon arc welding is an electric arc welding process that uses a carbon electrode to provide the heat necessary for melting and joining metals. It requires relatively simple equipment, is inexpensive, and produces high-quality welds. It is typically used on thick steel plates or castings that are difficult to weld by other methods. Let’s take a closer look at carbon arc welding, the equipment you need for this process, and how it works.

What Is Carbon Arc Welding?

Carbon arc welding, also known as air carbon arc cutting or air carbon arc gouging, is a type of electric arc welding in which an electric current passes between two electrodes—a carbon electrode and the workpiece. The heat produced by the current melts the edges of the metals being joined together and they are fused into one piece as they cool down. This type of welding has been around since the late 1800s and is still widely used today because it produces strong welds with minimal distortion.

Equipment Needed for Carbon Arc Welding

Carbon arc welding requires several pieces of specialized equipment to be successful. The power source supplies a constant DC through cables to the electrode holder, which holds the carbon electrode in place during welding. The cable connected to the workpiece serves as a ground connection and completes the circuit. In addition, you will need safety gear such as gloves, goggles, and a face shield to protect yourself from burns caused by sparks or molten metal splashing onto your skin.  

How Does Carbon Arc Welding Work?                  

Before starting a job with carbon arc welding, make sure you have all of your safety gear in place and that all connections are secure so that no electricity can escape from them during use. Once everything is set up correctly, strike an arc between the electrode holder and workpiece using either manual striking or automatic striking. As soon as an arc has been struck, adjust current settings according to job requirements (the higher amperage will result in deeper penetration). Finally, guide the electrode along the joint line while maintaining a steady speed until you have reached your desired level of penetration. Once completed turn off your power source before removing any connections or accessories from your setup.


Carbon arc welding offers many benefits over other types of electric arc welding processes including its low cost, ease of use with minimal training required for operators, and high-quality welds with minimal distortion when done properly. With proper safety precautions in place and knowledge about how this process works, you can confidently get started on your next project! If you’re looking for more information about carbon arc welding be sure to check out our blog posts on this topic where we go into greater detail about each step involved in this process!

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