Advancing Welding Techniques With Sub – Arc Welding

Created 9 months ago
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arc welding process

As a leading precision and custom fabrication company, we employ advanced welding techniques and equipment to ensure the highest quality finished products for our clients. A new addition to our toolbox is submerged-arc welding (sub-arc welding) (SAW). SAW involves the use of a continuously fed electrode to create an arc that is shielded by a granular flux that is deposited over the weld zone. The flux melts to form a slag, which protects the weld from atmospheric contamination and provides a smooth, clean finish.

Advantages to SAW

Sub-arc welding is a highly efficient welding process capable of producing high-quality welds at a very high deposition rate. Other key advantages include deep penetration and fusion, and consistently uniform welds.   This makes it particularly well-suited for welding thick materials. Additionally, the use of a flux shield helps to reduce the risk of defects such as porosity, cracking, and spatter. Coupling submerged-arc welding with a positioner or drive rolls provides smooth, continuous welds that can be deposited in a short period of time with no need for stopping until the weld is complete. This helps speed up production and efficiency while yielding fantastic results.

How We Use Sub-Arc Welding

In practice, Keller uses SAW for double bevel welds – on heavy wall and thick plate metal – found on many of the vacuum chambers and pressure vessels we produce.

If you have a project that is in need of these advanced welding techniques, Keller Technology is ready to help. Contact us today to get your project started.

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