What is one effect of improper amperage settings in TIG welding stainless?

When TIG welding stainless steel, improper amperage settings can significantly affect the quality of the weld. One of the primary effects is the creation of weak, undercut welds. When the amperage is set too low, the heat generated may not be sufficient to create a strong bond between the base materials. This can result in incomplete fusion and penetration, leading to undercutting along the edges of the weld. Weak welds are prone to failure under stress, which can compromise the integrity of the structure being welded.

A proper amperage setting is crucial for ensuring adequate heat input to achieve proper penetration and fusion. On the other hand, using excessively high amperage can lead to burn-through or excessive distortion, highlighting the essential balance that must be struck during the welding process.