Arc Welders, Tig Welders, Mig Welders, & Plasma Cutters and Associated Characteristics
Posted: Tuesday, March 02, 2010
by Peter Brittain
Slinky Web Design
As we know, arc welding is a process of joining two pieces of metal through application of heat of an electric arc directed on the edges of the metal pieces. The metal melts when the edges get heated and additional melted metal is also added to the joint to form a strong bond or a weld.
Arc welders are available with wide range of features. For example, there are welding equipments with unlimited amperage control helping you to achieve quality and strong welds. Also, there are welders or equipments that are lightweight and solidly built enabling to transport them anywhere. Moreover, there are arc welders that have built in thermostatic heat protection features protecting it against damage.
Besides above, MIG welders use continuos feed of wire and generate lower heat. Due to this low heat generation, MIG welders are ideal for precision welding done on thin metals which are used in automotive assembly. However, one must be careful when selecting the consumables for MIG welder since wire specification changes for the type of job. For example, for welding on thicker metals, you need to select easy to use flux core wire, whereas for other applications, gas/solid wire has to be used.
Similar to MIG welders, TIG welding machines are available with many attractive and user friendly features. For instance, there are many features such as push button control panels, adjustments for repeatable welding cycles, start and weld crater. If you need to customize the shape and size of the bead, its better to choose a model having a true square wave AC output including pulse mode. Also, its important to select TIG welding machines that include safety features such as voltage protection and warning code circuitry
Unique advantage of TIG welder is it does not use filler materials to weld two metal pieces together, only uses heat. Compared to MIG welders TIG welders are slow in welding. However, TIG welders are essentially used for specific types of jobs. For example, TIG welders will be ideal for welding jobs free of cracks and damaged welds.
Plasma Cutters Plasma cutters come with various features such as single-dial controls, pressure gauges and air pressure regulators. Similarly some Plasma cutters have other features like parts-in-place indicators, line voltage compensation, and thermostatic protection.
Besides above, if one needs to carryout repetitive work involving complicated cuts, CNC robotic interface will certainly ensure uniform and accurate cuts every time. The latest plasma cutters have inverters in place of the transformer so that these give additional reliability.
When selecting a plasma cutter, it is important to note the Duty Cycle of the cutter. It is a key aspect in your buying decision. For example, bigger machines can accommodate thicker metals and run longer indicating a bigger duty cycle. Also its important to take into account of the ratings given by the manufacturers on plasma cutters. In particular, these rating will indicate how long each machine can cut through mild steel before cool down.
Amweld is a supplier of TIG & MIG Welding Equipment in Australia. Amweld welding products can be used for welding aluminium.
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