Hi, we have a process where we are pusle welding heat-treated (hardened) mild steel to pure Cobalt. The weld area is ~0.040" in diameter and we are not using a shield gas. We are, however, using two air knives in series between the weld surface and the laser optics. We have been using...
We have a process where we run pulse welds of ~40 Mil diameter spots across a Cobalt to mild steel(hardened) seam interface. At one point we had good, clean, smooth welds, but recently we are getting a large generation of soot, carbon, spitting, pitting, and slag on/around our weld interface...
