MIG Welding Advantages

Mas Metal Arc Welding (GMAW), or MIG welding, offers several advantages over other conventional processes such as shielded metal arc welding (SMAW), gas tungsten arc welding (GTAW), etc. Some of these advantages are as follows: The main advantage of metal inert gas welding or MIG welding is the high rate of weld metal deposition as compared to SMAW … Read more

Arc Welding With Constant Voltage

In welding – besides the current current power source, the second type of power source is the constant voltage (CV) machine or the constant potential (CP) machine. It has a relatively flat volt-ampere characteristic curve. In this article we shall discuss about arc welding with constant voltage. Features Of A Constant Voltage Machine The figure below shows … Read more

Wires For GMAW Welding

Electrodes used for gas metal arc welding process (or MIG Welding) are smaller than those used for other welding processes. This is because of the high current and speed at which the welding filler material is introduced into the weld puddle. The MIG welding wire comes in various sizes, and are available for most of … Read more

Arc Welding With Constant Current

The power source is the most important part of the arc welding equipment. In all arc welding processes, two kinds of power sources are generally used, from a voltage-ampere output characteristics point of view.    One is constant current type, the second is constant voltage type. This article details the constant current type power sources in … Read more

Arc Welding Aluminum: How to Stick Weld Aluminum

When aluminum is welded with shielded metal-arc welding (SMAW) process, the stick electrodes are heavy coated. The flux does the function of chemically reacting with the aluminium oxide layer, and removing it. Besides this, the flux also performs the function of shielding the arc from atmospheric gases, and forms a slag over the completed weld. The … Read more

Tig Welding Aluminum

Gas tungsten arc welding, or TIG (Tungsten Inert Gas) arc welding process is a commonly used process for welding of low thicknesses of aluminum and aluminum alloys. This article discusses TIG welding of aluminum with three methods – with alternating current, with direct current straight polarity, and with square wave alternating current. Welding With Alternating Current … Read more

Carbon Arc Welding (CAW)

CAW – short for carbon arc welding, is a welding process in which fusion is obtained by heat produced by striking an arc between a carbon electrode and the work-piece. Shielding is not used. Pressure may or may not be used. Filler rod also may or may not be used. The main difference between the … Read more

Other Arc Welding Equipment

This article discusses the auxiliary items (besides the power source) that enable a safe, quality welding. Besides the power source, other arc welding equipment includes welding cables, electrode holders, welding tables, clamps, backup bars, helmets, goggles, and accessories. This article briefly touches upon these. Cables Two welding cables are used in all arc welding machines. … Read more