Melting metal shavings

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Hello all,I am wondering if its possible for the electric current running through a part as a result of MIG welding is enough to cause metal shavings that may be touching the part to melt.  Here is our exact scenario: We are welding a part that is made of AHSS with a MIG welder at 23.0v.  We are required to use a magnetic metal cover plate to in order to shield a portion of the part from weld spatter.  We are welding parts and finding that they actually have more spatter on the area that the plate is touching after the process than they did before welding.  My theory is that because the plates are magnetic they are picking up metal shavings from our re-weld table and as the current flows through the part the shavings are forming bb's on the plate.Is this possible? I have already confirmed that it is picking up shavings.
Reply:No maybe interrupting smooth has flow? Sent from my SM-N915W8 using Tapatalk
Reply:I'm sorry, what?
Reply:Is the "spatter" on the magnetic plate, or in between the magnetic plate and the base material? I can't see the current passing through the metal melting the shavings. That metal would have to get rip-roaring hot!Do you have a good ground connection?Rich
Reply:Originally Posted by pistolnoonNo maybe interrupting smooth has flow? Sent from my SM-N915W8 using Tapatalk
Reply:Does it weld the same both ways? The addition of the magnetic plate could be messing with your arc.
Reply:I'll attach a few pictures for reference.The parts are always EXTREMELY hot, we weld 28 welds totalling about 500" of deposited weld wire (I know that its not the typical measurement used for measuring consumed wire, however it is the easiest for me to visualize so I converted it) in less than 80 seconds on a part that is about 10" tall x 4" wide with Advanced High Strength Steel that is 1.5mm thick throughout the main structure and 3mm thick on the top and bottom plates.  The heat is often concentrated enough that we can not handle them for more than 4-5 seconds at a time without burning our hands even with hobart welding gloves and additional kevlar inserts.Here are some pictures of the affected area as well as the plate itself and how it is attached to the part.Here is a picture of the bottom of the part (the weld free zone) that the plate presses up to when it is attached:Attachment 1228771Here is a picture of the cover plate itself:Attachment 1228781and here is how it attaches to the part:Attachment 1228791