If you are looking into welding, then you have probably heard of automatic welding machines or spot welders. Many people prefer automatic welders because they do not require a human to control them and they do most of the work for you. However, if you are a beginner and want to learn how to weld, one of the main problems you will face is figuring out which type of equipment to buy. Here is some information on the different types of welders available.
The most basic forms of automatic welding equipment are electrodes and tumblers. An electrodes consists of a drum with a coil on the inside that is connected to a panel that has a small hole in it. A tumbler simply is what it sounds like – a large container that holds tungsten(or other metals) in an extremely loose configuration so that the current can travel between the weld puddle and the electrode.
There are many other types of welded workpieces, but the two most common types are the welded tip dresser and suspended spot welding. A tip dresser is basically a large vented cup that sits on the tip of a welding gun and allows you to lay the metal onto your work piece without using a cloth. suspend frame welds often use a ring or similar ring to sit atop the cup in place of a cloth. Most suspend frame welds also allow you to create tucks, turns and other decorative designs as well. This type of welds are very popular and can be used in most any welding situation where you would normally use a welder.
The next type of automatic spot welding equipment is a tumbler feed. As the name implies, this is a container that is used to feed the weld puddle onto the electrodes. Feed welds typically come in two types: one with a separate lid that you open to feed the weld puddle and another that has a single lid that you close to allow the welder to continue welding without the need to open the lid. One advantage to using tumblers instead of clamps or feeders is that you can easily add fluid to the tumbler without waiting for it to go back into the container. For this reason, many shop owners use tumblers whenever possible. The downside is that these welders tend to take up a lot of room and can cost quite a bit of money to purchase.
The final type of welding equipment commonly used in a shop is the welder probe. These devices look a little like a metal or plastic rod with a tip that fits over the welds and a connector on one end that plugs into an electrical panel. The probes typically have tip extensions that extend outward for additional inspection of welds. These welders are typically much less expensive than welders with clamps and feeders and can also be used to weld smaller items such as thinner sheet metal.
Regardless of the type of automatic welder you choose, it is important that you do not have too much metal on hand when you start a weld. You should generally remove about a half-inch of welding mesh before starting the weld so that you can feed the weld puddle into the welder easily. If you do not remove enough, the weld might not hold and you might end up having to stop and allow the weld to cool down. If your weld comes out clean, you will have saved yourself a lot of time, energy and money when you use automatic welders instead of manual ones.