Tips on Welding Power Tools
Spot welding is one of the most common types of welding today. Many manufacturers and do it yourselfers have at least a basic knowledge of the process. In this article, we’ll discuss the basics of how spot welding works.
How it works – When you spot weld a piece of metal, the flux you use combines with the metal’s surface tension to easily create a weld that holds both pieces together for an extended period of time. This allows you to easily repair dents, scratches, or chips in vehicles. Many vehicles actually come with their own dedicated spot welder guns. If you don’t already have one of these welders, they are relatively inexpensive and readily available. Because of their ease of use, spot welding is often used on projects that require temporary welds, such as prototypes and off-prints.
Where to buy a gun – You can buy a welding gun at almost any hardware store. If you are planning on welding small items, a portable welding gun is generally your best option. A good portable gun will be able to weld many different size pieces of metal and perform many different functions. If you plan on welding larger items, you should consider purchasing a table top welding gun, which is often seen in welding shops. Table top guns require special welding tanks that are larger than most guns, but they are more versatile and perform many more functions.
How to operate your gun – Most welding equipment involves several separate parts including the gun, tank, power supply, and air hose. To start welding, you simply hold your welding gun over the piece that you want to weld, and blow into the holding tank. The compressed air in the tank causes the fuel to ignite, resulting in an intense heat that heats the weld puddle and brings the piece to the surface of the other side. By blowing into the power supply, the power from the gun enables it to transfer the energy into the weld puddle.
How much power does it need? Different guns require varying amounts of power to weld. Make sure you get a gun that matches your power needs. While some guns take very little power to start, others require quite a bit. You should buy the gun that has the maximum number of watts it can provide while still maintaining quality welds.
Which guns are best? The answer to this question depends largely on what type of welding you plan on doing. For general spot welds, smaller guns are generally better. Spot welds are very time consuming and messy, and you generally only get a couple of seconds of direct contact with the weld. Using a smaller, more efficient gun enables you to spend more time working on the weld.