This category of articles contains various welding processes which dominate most of the welding in the industry. Some of these processes are TIG welding, MIG welding, FCAW, Oxyfuel welding, SMAW, Plasma arc welding, and some other processes such as resistance welding, flash welding, etc.
Acetylene is a heavily used gas in oxy-acetylene welding. It is an organic substance, composed of only carbon and hydrogen at the molecular level. Its’ molecular construction consists of two carbon atoms bonded to each other through a triple bond. Each carbon atom in turn is bonded to one hydrogen atom through a single bond. … Read more
In order to effectively weld stainless steel with tungsten inert gas welding process, it is important to consider carbide precipitation. TIG Weld Stainless Steel : Carbide Precipitation What is Carbide Precipitation? Carbide precipitation is said to occur when the chromium and carbon in 300 series stainless steels are drawn out of the microstructure and react with atmospheric … Read more
The oxyacetylene torch is a vital component of oxyacetylene equipment. Broadly speaking, it receives gas supply from the two gas cylinders (one for acetylene and other for oxygen), mixes them, and delivers them to the point of flame. Robust and precise construction of the oxyacetylene welding torch is important for obtaining a quality weld, and … Read more
SAW, short for submerged arc welding is a welding process in which joining of metal is obtained by striking an electric arc between a consumable wire electrode and the work-piece. Shielding is provided by a blanket of flux which covers the arc completely. In other words, the arc is submerged under the flux. The process … Read more
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
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
When two metals are closely pressed together, and an electric current is passed through them – they offer an electric resistance to the flow of current. This resistance is greater than the one if the current was flowing through a continuous metal. The resistance to current causes heat to be generated between the two metals. … Read more
SMAW, short for shielded metal arc welding, is the most commonly used welding process in the world. It is an arc welding process in which coalescence is obtained by utilizing the heat of an electric arc between a consumable flux-covered electrode and work-piece. No pressure is generally applied. In this article, we shall see about … Read more
Fillet weld is the easiest way to join two metals. It requires no joint preparation, and can be completed in no time, and is cheaper. Due to this reason fillet weld is a very popular choice of weld among designers. A fillet weld can be used to join all five types of basic joint types: … Read more
PAW, short for Plasma Arc Welding is a type of metal joining process in which coalescence is obtained by heating the work-piece with a constricted arc. The constricted arc can be struck in two ways: one, between the tungsten electrode and the work-piece. This is called a transfer arc. Two, the arc is struck between … Read more