Here's another broken casting that came in that was caused by another woman driver on her cell phone yadda...yadda...yadda instead of paying attention. This is a base/pedestal for a cast mailbox that is threaded at the top for the mailbox to be screwed down in place. Fortunately for my customer, the woman did stop to inform him of the damage & offered to pay for the repair. I finished it today & the customer was pleased with the outcome.
I've been doing all casting repairs with the Cold Welding Cast w/MIG process that has resulted in 100% success so far. I used .030, 309L, 98/2(AR-CO2), at 80A for this job. The customer had both pieces lightly ground clean to get a good look at the break so all I had to do was wire wheel the metal clean & put a .045 bevel on both pieces. The break fit together quite nicely & I did a very small tack on opposite sides to hold. Then I ran a 1" bead on opposite sides. The casting was only luke warm to my bare hands after welding. I allowed to cool for 15 min. & did another (2) 1" beads, again on opposite sides & repeated this process with 15 min. intervals. The casting never got more than luke warm to the touch & NO TINKLING of the casting so I knew it was solid with no cracks. Hope this may help someone. Here's the pics.
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