Dec 3, 2008 · Cast iron can be welded. Some varieties are not too difficult to weld, but it takes alot of preperation and care to do it right. You can make "bubble gum" repairs using a nickel rod in a stick welder. I've used this to repair non-critical castings. To properly weld cast iron takes more skill and knowledge than I have.

Dec 21, 2011 · I am doubtful about because I've heard that cast iron is very difficult to weld, and if brazed you would have to pre-heat the whole thing (about 2' wide x 2 1/2' high) to safeguard against cracking from the heat of brazing. And brazing cast iron is no joy, either. 2. Use the original, epoxied back together as a pattern to cast a new one.

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Oct 17, 2015 · The requirements for pre/post heating on cast iron come about from something known as "precipitation hardening." What happens is that you get a area of exceedingly high carbon on either side of the weld puddle area, and if the cast iron is allowed to cool quickly, that carbon remains trapped. The weld will crack back out, sometimes bigger than ...

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Nov 25, 2014 · Cast iron is not usually used in suspension parts as it much to brittle. Most definitely steel of some variety, most suspension parts I've messed with can be heated red, bent, welded, cut and rewelded with little problem.

Feb 12, 2021 · Though that absolutely does affect the hardness of the material. Welding steel or pretty much any other commonly welded metals besides iron, there is a lot more ductility in the material. The lack of ductility is the major cause of the cracking, not hardening alone. Iron is not very ductile even when it is soft, unlike most other commonly ...

Hey guys! Ahh the ol' cast iron debate! I'm with Forrest and weird but can maybe add a bit. For starters some people confuse the "cold" process with the "hot process. The cold process with Ni-rod must be kept as cold as possible through out the entire repair. Very short welds (1/2" to 3/4")are to be peened to relieve stress and to allow cooling ...

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Nov 20, 2012 · Cast iron is often welded with nickel-based filler metal. Chuckle indeed. Comment. Post Cancel. adatesman ...