General welding questions that dont fit in TIG, MIG, Stick, or Certification etc.
Shastri11
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Which is the most difficult material to weld and why ?
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    Wed Dec 20, 2017 8:37 pm
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Cast iron
If not done right it will crack
Today there rods that reduce cracking

Dave

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    Sun Nov 19, 2017 10:09 am

Thin cast aluminum, i.e. oil pans, tend to crack worse, than cast iron, if not put in an oven to cool slowly. Not to mention the contamination of oil.
Lincoln MP 210, Lincoln Square Wave 200,
Everlast 210 EXT
Thermal Dynamics 25 Plasma cutter

" Anything that carries your livelihood wants to be welded so that Thor can’t break it."
CJ737
noddybrian
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    Thu Jan 24, 2013 12:13 pm

Unobtanium is probably the worst - many new vehicle & equipment parts seem to be made of it so the price of replacement spares is so high you end up buying new - plus I never seen filler rod available for it - ( am hoping given maybe 10 years or so the UK may even get some 4943 ! )
Antorcha
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Thin, stainless.... round tubing
Shastri11
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Thank you all for the answers..
soutthpaw
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VIBRAINIUM!
Shastri11
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soutthpaw wrote:VIBRAINIUM!
:lol: :lol: :lol:
soutthpaw
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Any idea if Unobtainum can be welded? Of course you have to go to Pandora to get it.
What about Adamantium? Here is some more details... https://scifi.stackexchange.com/questio ... -vibranium
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