Under what condition are arc strikes considered acceptable?

Arc strikes refer to unintended arcs created during the welding process that can lead to problems if not addressed properly. Blemishes caused by arc strikes can potentially lead to structural integrity issues if they are not managed.

The condition in which arc strikes are considered acceptable is when the blemishes caused by the arc strike are ground down to a smooth contour and the area is confirmed to be crack-free. This process ensures that the surface is prepared adequately for further operations or inspections, mitigating any negative impact the arc strike could have had on the weld's strength and performance. Grounding the area to a smooth finish diminishes the potential for stress concentrations and enhances the overall appearance and functionality of the weld.

While blending in the weld perfectly or simply painting over the area might mask the issue temporarily, it does not address the potential structural problems associated with the arc strike. Similarly, random occurrences of arc strikes without addressing their legitimacy in terms of integrity would not meet acceptable welding standards. Therefore, ensuring a smooth contour and verifying crack-free conditions is crucial for safety and performance in weld integrity.