Ethan Bale 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
In order to understand about the polarity in an arc welding circuit, it is first important to understand the construction of the arc welding circuit. This article discusses a few terms used in any electrical circuit such as EMF, current, and resistance. The later part of the article equates the welding electrical circuit to ordinary … Read more
This article discusses a few aspects related to welding with alternating current, that is – AC welding. The article begins with an introduction to alternating current, followed by features of arc welding with alternating current. Features of Alternating Current Alternating current, as the name suggests, alternates between a positive value and negative value, according to … Read more
Nickel is a widely sought after metal due to its’ excellent properties. However, its’ usage is normally restricted due to its’ high cost. There are limited reserves of this metal, limited to few geographical areas. This article discusses a few aspects of welding nickel and its’ alloys. Nickel and its’ alloys are used where corrosion … Read more
The edge welding joint is used to join parts that are parallel to each other, or nearly parallel, as can be seen in the figure 1 below. The strength of this joint is not as much as other types of welding joints, such as butt joint. This joint is commonly used to join edges of … 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 occurs when the chrome and carbon in 300 series stainless steel are drawn out of the material and react with the atmosphere. It occurs … Read more
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