1. bikewhorder

    bikewhorder

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    Thanks, I had been told about the importance of removing the oxidation, I was wondering if the rods were exempt and I hadn't even thought about replacing my dirty old tig gloves.
     
  2. bikewhorder

    bikewhorder

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    So the last couple days have been full of set backs and frustrations. When I chose aluminum for this build I knew learning a new skill like welding aluminum would be a challenge but I think I may have grossly underestimated just how hard it would be. I had a few glimmers of success with plates but when I tried to weld on actual bike frame I couldn't even get the two parts to connect. And my steam bending has not been going too well either. The thing about bending wood is you can't just grab any piece it needs to be really straight grain with no run out and its not the kind of thing you can just go out and buy, it requires a bit of digging and luck. I really wanted that polished metal look with the wood and I didn't want to use steel. I'm considering SS but that's another can of worms I didn't want to open. 20190816_145642.jpg 20190816_140052.jpg 20190816_050158.jpg
     
  3. David Cooksey

    David Cooksey

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    That's contamination being pulled into the weld from the inside of the tube. Contamination shows up as specks of black. You need to clean inside the tube to have any hope.
    Check your gas flow too. Should be pure argon around 7 litres per min
     
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  4. bikewhorder

    bikewhorder

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    Thanks again. I didn't know the underside would matter. I think the inside of the frame has a protective coating on it. On a side note; Do you think trying to weld 6061 to 7005 would be ill advisable? The head tube I was planning to use is off a bike that's labeled as 7005 and I "think" my plates are 6061 though I grabbed them from a scrap pile at work and no one was really sure.
     
  5. David Cooksey

    David Cooksey

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    I've not had experience with 7005. What rods are you using?

    Be aware that some aluminium alloys need heat treatment after welding to recover the strength lost when the weld heat anneals the metal. I think you should check this before going any further.
    I'd have gone stainless.... 304 preferably.
     
  6. bikewhorder

    bikewhorder

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    4043 rods. Yes I was aware of that bike frames were heat treated but when I asked a few welders I knew if they ever did that they looked at me like I was crazy. There is only a mimimal amount of welded aluminum parts in this design. I think at this point my plan will be to secure them in a removable fashion so I can replace them later.
     
  7. The Renaissance Man

    The Renaissance Man __CERTIFIED DIVER__ (Open Water & Open Dumpster) Pro Member

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  8. bikewhorder

    bikewhorder

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    20190816_232612.jpg 20190816_062043 (1).jpg 20190816_212623.jpg One more piece of the puzzle glued up.
     
  9. The Renaissance Man

    The Renaissance Man __CERTIFIED DIVER__ (Open Water & Open Dumpster) Pro Member

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  10. kingfish254

    kingfish254 CHECK OUT MY SALE THREAD FOR COOL STUFF! Pro Member

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    I think more clamps are needed. :D
    Seriously cool pic and process.
     
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  11. bikewhorder

    bikewhorder

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    20190817_133819.jpg Sneak peak. Just don't call it the angel of wood because it's going to have it's own unique character.
     
    Last edited: Aug 17, 2019 at 3:44 PM
  12. Brian macumber

    Brian macumber

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    Was you able to save the other wood parts that started separating?
     
  13. bikewhorder

    bikewhorder

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    I was actually, the piece was extra wide so ripped off the split side and used it.
     
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  14. kingfish254

    kingfish254 CHECK OUT MY SALE THREAD FOR COOL STUFF! Pro Member

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    Looks like a freeway overpass. :D

    upload_2019-8-17_21-11-1.png
     
  15. bikewhorder

    bikewhorder

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    Wow, steam bending in two directions at once is exponentially more difficult. If I can get this lower section bent and glued successfully that will be a good thing to have in my rearview mirror. 20190817_220206.jpg
     
  16. bikewhorder

    bikewhorder

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    Maybe I should have called it "Exit 9A"
     
    Last edited: Aug 18, 2019 at 6:24 AM
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  17. The Renaissance Man

    The Renaissance Man __CERTIFIED DIVER__ (Open Water & Open Dumpster) Pro Member

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    You've been busy just building jigs!
     
  18. bikewhorder

    bikewhorder

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    I'm gearing up for production, ha ha.
     
  19. bikewhorder

    bikewhorder

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    Woo hoo, i got one side glued up! 20190818_141654.jpg
     
  20. bikewhorder

    bikewhorder

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