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
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
The term arc welding is a very broad term that includes a wide variety of welding processes, that can all be grouped under this one term. As the name indicates, in arc welding – the heat of an electric arc is utilized to melt the base metal and obtain coalescence. The electric arc has a … 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
This article discusses the various components used in the MIG welding equipment. GMAW Equipment The equipment used for gas metal arc welding consists of a power source, a welding gun, a shielding gas supply, a wire-feed mechanism that draws filler wire from the spool and feeds it to the welding-gun, cables to conduct current, and … Read more
MIG welding, also called Gas Metal Arc Welding (GMAW) is an arc welding process in which joining of metals is obtained by heating the metal with an arc struck between the work-piece, and an electrode that is continuously fed through the welding torch. The shielding is provided through an externally supplied gas, often argon, which … Read more
This article talks about the basics of tig welding, starting from what is tig welding, the principles of tig welding process, shielding gas used in tig welding, and advantages of tig welding. What is TIG Welding? TIG welding is also called Gas Tungsten Arc Welding. It is a welding process in which joining of metals … Read more
Flux-cored arc welding or tubular electrode welding is a variation of GMAW welding. It has some advantages over MIG welding such as improved arc action, improved weld metal properties, and a better weld appearance in general. In this process, the electrode is tubular in construction. The electrode is ‘cored’ with flux, hence the name flux-cored. FCAW, … Read more
In this article we shall see some basics of TIG welding stainless steel, commonly used fillers used for various grades of stainless steel. This is followed by a few hands-on tips to achieve a good TIG weld on stainless steel. This is followed by a small discussion on how to avoid distortion and cracking in … Read more