robinb Posted December 11, 2021 Share #1 Posted December 11, 2021 As a sheet metal worker I just wanted to share this anomaly that occurs when spot welding metal. I operate a spot welder almost daily over the last 25 years and have seen this on occasion. Check out this "splash". I have seen people call out this as a sign of mig welding because of the wire looking to come out of the spot weld. This just happens occasionally under normal circumstances when spot welding. It's caused by the heated metal "splashing" out of the hot contact area. It comes out from between the layers of metal and hardens fairly quickly. A mig weld can look the same, but it would also have a noticeably large puddle of melted metal around the contact area. Oh, it's a McCord helmet heat lot 777A. Link to comment Share on other sites More sharing options...
Burning Hazard Posted December 12, 2021 Share #2 Posted December 12, 2021 I've owned a couple of fixed bails with these splashes; our forum members refer to them as "welding slag". Would you be able to repair a broken bail on an M1 shell at work? Pat Link to comment Share on other sites More sharing options...
robinb Posted December 12, 2021 Author Share #3 Posted December 12, 2021 I could. It requires some paint removal though. The electric current needs bare metal to work. Link to comment Share on other sites More sharing options...
robinb Posted December 15, 2021 Author Share #4 Posted December 15, 2021 This post was meant to be informative. Here's a typical example of what I am talking about. Link to comment Share on other sites More sharing options...
dmar836 Posted December 15, 2021 Share #5 Posted December 15, 2021 Is that splash, robinb? That looks more like mig. Link to comment Share on other sites More sharing options...
robinb Posted December 15, 2021 Author Share #6 Posted December 15, 2021 It is splash. Easily confused with mig wire. Link to comment Share on other sites More sharing options...
dmar836 Posted December 15, 2021 Share #7 Posted December 15, 2021 Yeah, that appears to have the same diameter throughout the length. Obviously spot welds though. Interesting. Link to comment Share on other sites More sharing options...
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