The Science Behind Underwater Welding

Posted: June 20th, 2018
Commercial Diving,Underwater Welding

Underwater welding plays an important role in construction, the maintenance of oil rigs and ships, and much more. Welding requires extreme heat to fuse two surfaces together. The idea of heating surfaces to such a high temperature while they are underwater often seems counterintuitive. After all, doesn’t water put out fires?

The methodby which underwater welding, also known as wet welding, works is incredible. Wet welding is performed using an electrode that contains a cathode, anode, and plasma. The cathode is negatively charged, and the anode is positively charged. As a result of their opposite charges, electrons travel from the cathode down to the anode while positive ions move up to the cathode. As more and more particles move, a massive amount of energy is generated. As a result, the arc coming out of the welder’s tool heats up to over 5,000 degrees Celsius. This arc is protected by a waterproof gaseous bubble that forms around it. Within this protective bubble, it is possible to weld surfaces together.

Any commercial diver will tell you that welding while under water presents many challenges. To begin with, welding of any kind requires skill and precision. Add the challenge of performing the entire feat underwater, usually in conditions of low visibility, and you’ll find that underwater welding is not something just anybody can do.

In order to perform underwater welding well, you’ll need to shadow and learn from experienced divers who specialize in welding. It’s also important that you fully understand the science behind what you’re doing. This will help you to know what to expect and will prepare you to complete the tasks you will face in your career. At IDI, our students are trained by commercial diving professionals and are taught more than just the steps they should take to complete a job; they’re taught the science behind everything they do. The exceptional education we provide at IDI is the reason why our students are some of the most highly sought after in the industry. When you study Underwater Welding at IDI, you’ll receive an incomparable education and earn your certification through Lloyd’s register, preparing you for success throughout your underwater welding career.