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I was referred to 2 bike frame repair/building shop, they all denied 100% guarantee repair, you can't just cut out the head tube and re-weld it, because alu is heat treated , if you tap it out, there is a high chance of this cracking, the metal is bent so much I can see and feel the paint cracking ... you can't just heat it up and reform alu, it's not the same as steel, yes, I have done countless hrs of research and calling experts around me, my last hope to get this in riding condition is, I have reached out to aluminum metal fabricators who make home related accessories (fences, doors, awnings, etc etc) waiting for them to reply
tbh, this shouldn't even be an issue to begin with , I think I've done almost everything possible on my end
WadaWada-
Not all aluminum is heat treated. And I don’t think the stuff meilec uses is heat treated. Heat treating adds costs and requires big ovens. Not something small builders have access to and if they did it would be reflected in the price.
If you can find out the grade they used it will help work out how repairable it is. The type that doesn’t need heat treatment age hardens. I suspect yours is that type as it bent without snapping. If it was t6 it either wouldn’t have deformed or would have cracked.
If done correctly it could be repaired in my view. I say that as someone with a metal workshop and has actually welded aluminum.
Dogtemple
Bike shops sell tyres, you need a metal fabricator that works with aluminum.
Alternatively if you know what grade of aluminum was used, you might be able to heat it up and reform it, so long as it is a particular grade.