Stress corrosion cracking is an issue of increasing concern. Occurring in high heat service environments or highly corrosive service environments, or a combination of both this is a type of intragranular grain boundary cracking that can seriously shorten the lifespan of even high specification metals like Inconel or other nickel…
Welding originally referred to forge welding. Heating metal in a furnace and hammering on it until the pieces merged. Now, the term most often refers to arc welding and additional clarification is needed if you’re talking about traditional forge welding or welding using a gas such as oxyacetylene. Advancements in…
Pipe and tube welding is hard. It is so difficult in fact that it has its own dedicated certification process called 5G to weld the circumference of a horizontal fixed pipe. This pipe cannot be moved to make things easier, and if a welder produces a qualified weld and receives…
There are three arc welding processes that provide nearly miraculous seeming results. Wire Fed Flux Core Arc Welding (FCAW) and Metal Inert Gas (MIG), or Gas Metal Arc Welding (GMAW), produce completed welds so swiftly that it seems almost magical. Tungsten Inert Gas Welding (TIG), also known as Gas Tungsten…
Nuclear power has proven itself to be an efficient large-scale source of energy for decades. While both fission and fusion reactions can produce energy, the practicality of building the reactors depends on the process and reaction containment procedure. Fission power can be controlled, and despite its disadvantages, such as radiation,…
Applying manual welding skills to critical weld projects requires years of technical training and experience. And the process can still result in slow speeds, reduced productivity, and even worker injury. Also, any weld defects—like those that result from welder fatigue—must be addressed. Compared with the effort manual welding requires, orbital…
The term “weld pool” designates the molten puddle of metal liquified by the welding arc. It can be formed from the surface metal of the workpiece, filler metal introduced to the arc, or a combination of the two. In each case, the weld pool is subject to dynamics that are…
Serving as a cornerstone for the fabrication and construction of metal structures, welding requires precision, skill, and attention to detail to create strong and durable weld joints. One small incident while welding can cause massive rework and potentially fatal injuries. Fortunately, there are safety procedures and devices that are put…
Autogenous orbital GTAW, or gas tungsten arc welding, is a highly specialized process that uses an automated welding system to join two pieces of metal without the need for filler metal. The process offers a high level of control and is popular in industries that need the highest quality and…
In welding, precision and efficiency are key factors that influence the quality and durability of the output. Among the different welding techniques, welders prefer gas tungsten arc welding (GTAW) and plasma arc welding (GTAW-P or PAW) to ensure accuracy and control in the fusion process. The similarities between the two…
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