SAW welding - Submerged Arc Welding
Various names for the same process.
This is an automated arc welding process, which involves feeding a wire, just like with an electrode, but in which the coating of the electrode is replaced by a protective powder. The machine applies a blanket of granular fusible material on the work just before the welding process, and sucks it up again once it is completed.
It is a very powerful welding process, also allowing high welding speeds. It is especially suitable for longitudinal and circumferential seams, especially when multiple passes are necessary.
Our SAW installation is in use since 2013 and is fitted with state-of-the-art technology such as tracking mode, a camera, etc. The process produces a very aesthetic, even, high-quality weld; no manual weld can match the quality of a SAW weld. When submitted to NDT (non-destructive testing such as, e.g. RX), welding errors are only rarely detected afterwards.
We are already absolutely delighted with our machine. Here are some photos of past projects.
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