There are several types of automatic welding that welds at various levels of heating. The three most common types are the rotary, single trigger, and suspended spot. Each type has its advantages and disadvantages. For more information on these types, refer to the following text. Additionally, you will find helpful information about electrical and welding safety.
The rotary screw and hook beam machine are better suited for producing more intricate shapes than a straight line machine. Automatic suspended welding machines are usually held in a hand held unit which has a coupling that can accept either the standard MIG or TIG welding electrodes. The attachment of electrodes is done by means of a clamp. There are some versions of this type of welding equipment which are able to use both gases. In this case, the power source is different.
A single trigger or rotary screw automatic spot welding equipment is primarily used to weld thin materials. This equipment has one trigger, which may be either pressed or rotated. There is also a variable speed screw that controls the rate of rotation. The single trigger produces a very fast turn of the screw. The rotary screw produces a slow turning of the screw.
The second type of automatic spot welding equipment has an integral feed mechanism. Feeding mechanisms range from a simple screw feeding mechanism to a ball bearing type feeding mechanism. Feed systems are designed to deliver the right amount of filler material into the work area with a minimum amount of effort from operators. This type of welding equipment has less manual labor input than the rotary screw feed system.
The third type of automatic spot welding equipment has two main components: the terminal feed and the electric arc generator. The terminal feed moves the electric arc generator along a straight line between the welding areas. The generator uses electric current to heat the metal electrodes. When the temperature gets high enough, these electrodes separate from the hot plasma in the plasma torch and produce the weld.
The fourth type of machine has a rotary or a linear motion. It uses a spindle that is fixed directly above or below the electrode and is rotated by a screw that causes the spindle to turn. When the spindle turns, the metal wire will move perpendicular to the spindle. This type of welding equipment can work with any diameter hole. Automatic wirefeed systems do not have to rely on human interference as they do not need to stop and start moving the wire along the spindle.