Welding is a process of joining two or more pieces of metal together using heat and pressure. Welding machines are an essential tool for this process, as they provide the necessary heat and pressure to create a strong bond between the two pieces. There are many different types of welding machines available today, each designed to meet specific needs and requirements. From small handheld devices to large industrial models, there is a welding machine suitable for every application. In this article, we will take a look at what welding machines are and the different types available on the market.