Welding Cracked Cast Iron Head. Turn on the MIG welder and Measure your metal. If cast iron is not weld properly then this can cause a crack or damage to the material being weld.
Furnace welding a large cast iron diesel head is often well worth the effort because of the high value of the casting but it also makes economic sense on many late model cast iron passenger car heads if the head can be repaired for less than the cost of a new or used casting. Set up and start a survey of basic safety precautions needed during welding in your welding workstation. It is a calamity to locate a crack in cast iron components for such machine owners.
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If by know the crack is clean ground and drilled the welding preparation can begin. What makes cast iron one of the most challenging materials to weld is that it has fairly unusual behavior. There can be a huge financial loss in replacing the broken part or hiring trained cast iron welding specialists to fuse the crack. Using welding consumables like the MG-289 Cast Iron Welding Alloy rods that are designed for contaminated cast iron is the best way to ensure the weld is sufficient.