Any metal that is constantly being bent will end up breaking sooner or later. It is called being work harden. The best solution that I have found is to double the material in these areas and make sure everything is well balance especially if your mower has a bar blade.
From what see of your friend welding, he is using a fluxed core wired without gas. Lots of splatter. Plus type wire is not match very well to the type metal being welded.
It actually looks welds done by previous fluxed core wire supplier was selling me. I was having a treble time getting decent welds. I actually was blaming myself for the welding problems. With my current spool of wire the welds are a lot better with better penetration with less splatter. Once I add the gas (double shielding) the welds are more fluid resulting in flatter weld seams with even less splatter.
I say this to be mean as I would encourage that fellow to keep on practicing welding as it is the only way to get good at it.
Last edited by AVB; 25/12/17 06:36 AM.
