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.
The term steel does not mean any one single composition. It is a vast variety of alloys that can all be called steel. If the metal has only carbon, and does not contain any other intentionally added alloy (except the impurities), then it is called plain carbon steel. Sometimes, elements such as vanadium, chromium, molybdenum, … Read more
Plasma arc cutting works on the same basic principles as the plasma arc welding. A column of hot ionized plasma issues from a constricting nozzle at a high velocity, and melts the base metal. It then removes molten metal to produce a kerf. In this article, we shall see in brief about the various components … Read more
The cutting torch is an important component of the oxyacetylene cutting equipment. In this article, we shall see in brief about the construction of the torch. Later in the article, principles of the cutting operation have been discussed in very brief. Oxyacetylene Cutting Torch The oxyacetylene cutting torch appears similar in construction to the oxyacetylene … Read more
Acetylene is an extensively used gas in welding industry. It is used for both welding and cutting operations. In most fabrications industries, acetylene cylinders are a common sight. It is important to understand the right storing pressure, behaviour of acetylene, how it is stored inside the cylinder, how to operate the cylinder safely, etc. for … Read more
While cutting with acetylene is more common, oxyfuel cutting with MAPP gas can be used with equally good results as well. Cutting with MAPP gas is similar to cutting with acetylene gas in combination with oxygen. This article discusses a few differences. Cutting With MAPP Gas The right combination of parameters such as preheating flame, oxygen pressure, … Read more
Gas metal arc welding is a versatile process that is used widely to weld aluminum. Direct current electrode positive polarity is used, and an inert gas is used to provide shielding. The process can be adapted for out of position welding as well. Shielding Gas Aluminum is a reactive metal. Hence an efficient shielding is … Read more
Acetylene is an explosive gas at high concentrations, but it is a useful commodity used in the oxyacetylene welding. It should always be handled by trained hands in a systematic fashion. Setting up the equipment error-free is therefore important. It is important that a fire extinguisher in working condition be kept at hand to deal … Read more
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
A considerable number of people ask about welding machine requirements in order to TIG weld aluminum with direct current. TIG weld Aluminum with Direct Current Electrode Positive (DCEP) or DC(+) Can you TIG weld aluminum without AC and a High-Frequency box? Yes, you can actually weld aluminum with a low-cost DC power supply. It doesn’t make it any … 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