Post-weld cleanup may not be the flashiest part of welding, but it’s one that costs time and money—especially in high-volume robotic operations. ESAB’s new OK Autrod 42 LSW solid MIG wire targets that exact pain point. Designed for single-pass applications, this ER70S-9 wire forms minimal slag and silica islands, making it easier to clean and helping downstream operations like painting and galvanizing go smoother. That’s a welcome feature in industries like automotive and heavy machinery where any leftover surface defect can lead to corrosion or coating failures.
What makes this wire different isn’t just its cleanliness, but the chemistry behind it. Instead of the usual silicon oxide islands that tend to cling to the weld, OK Autrod 42 LSW generates manganese and titanium oxides, which are easier to remove—sometimes even self-releasing. It’s a small metallurgical tweak with big implications: less brushing, faster cycle times, and a cleaner weld profile right off the robot. The wire’s good wetting action also contributes to smoother toes and better bead appearance, which is helpful when appearance matters as much as structural integrity.
Rajinder Singh
While it’s primarily aimed at robotic MIG setups, multi-pass options may be viable depending on design specs. In short, it’s another step in making welding a little less about cleanup and a little more about getting the job done efficiently.
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