Welding is a cornerstone of modern manufacturing, and one type of welding is particularly useful for certain kinds of projects: short circuit transfer welding. This type of welding is used for a variety of projects, from automotive repair to manufacturing construction steel components.
It is estimated that over 1,000,000 incidences of short circuit transfer welding are performed each year in the United States alone. But what is it exactly? In this article, we’ll cover the basics of short circuit transfer welding, including its advantages, limitations, and safety considerations.
Let’s get started!
What is Short Circuit Transfer Welding?Short circuit transfer welding (SCTW) is an arc welding process that is used in welding applications, such as automobile manufacturing, aerospace, and military applications.
It’s a special type of welding method used to create a weld joint between two pieces of metal, or other materials, in a relatively short period of time. It is capable of producing high quality, consistent welds with incredibly high speed and precision.
How Does Short Circuit Transfer Welding Work?
Short Circuit Transfer Welding is a type of gas metal arc welding (GMAW) process. In this process, a constant current power supply is used and the welding is done in the short circuit mode. An electrode is supplied to the welding area and an arc is created by an electrical arc between the electrode and the workpiece.
A short, high-energy arc is produced and this leads to the deposition of a small globule of metal onto the workpiece. This process is then repeated until the desired weld is produced.
Advantages of Short Circuit Transfer WeldingThe Short Circuit Transfer Welding process has several advantages that make it an attractive choice for certain welding applications. These advantages include:
- High deposition rate – Short circuit transfer welding is capable of depositing more metal in a shorter period of time than other welding processes.
- Low heat input – Short circuit transfer welding has a low heat input and produces welds with minimal distortion.
- Accurate – The short circuit transfer welding process is very exact and precise, and produces welds with high accuracy.
- Low spatter level – Short circuit transfer welding has a low spatter level, which reduces cleaning time and cost.
- Fewer defects – The process produces a weld with fewer flaws and defects that could lead to failures.
Applications of Short Circuit Transfer WeldingShort circuit transfer welding is used in a variety of applications, including:
- Automotive manufacturing – It’s used extensively in automotive manufacturing for welding various parts of vehicles.
- Aerospace – It is used for welding high strength alloys used in the construction of spacecraft and other aerospace components.
- Military – It is used in the production of military components, such as torpedoes and missiles.