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Technical Weld Aluminum to Stainless Steel ?

Discussion in 'The Hokey Ass Message Board' started by loudbang, Jul 15, 2021.

  1. loudbang
    Joined: Jul 23, 2013
    Posts: 38,655


    DISCLAIMER: NOT my video and I do not know this man.

    Real nice technique for attaching the two dissimilar metal together. Watch until the end to see if they are really Welded. :rolleyes:

  2. so they are not really welded together just "captured" so the bolt cannot come out.
  3. loudbang
    Joined: Jul 23, 2013
    Posts: 38,655


    Looks like brazing to me :rolleyes:
    VANDENPLAS and bchctybob like this.
  4. ekimneirbo
    Joined: Apr 29, 2017
    Posts: 2,094

    from Brooks Ky

    I thought it was pretty neat..........
    Hnstray, loudbang and VANDENPLAS like this.

  5. lostone
    Joined: Oct 13, 2013
    Posts: 1,788

    from kansas

    Dang !! You ruined it for everybody !! Now theres no reason to watch the movie or read the book !! :D :p
  6. He covered up the bolt kinda like the dome over the reactor at Chernobyl!!

    hey not “exactly” or remotely welded together but the aluminum hat he created did the job !
    deathrowdave and loudbang like this.
  7. Kevin Lee
    Joined: Nov 12, 2001
    Posts: 7,440

    Kevin Lee
    Super Moderator
    Staff Member

    What a shit show.
    tomcat11 likes this.
  8. woodiewagon46
    Joined: Mar 14, 2013
    Posts: 1,936

    from New York

    There is a big difference between welding and melting two pieces of metal together.
    loudbang and VANDENPLAS like this.
  9. billfunk29
    Joined: Jun 28, 2005
    Posts: 42

    from Minnesota

    Long time ago, I welded Stainless steel to aluminum, with an electron beam welder, no filler. Surprisingly it was pretty strong. Could not break it by hand. Cut a section to polish and etch. Metallurgy sucked.
    loudbang likes this.
  10. TRENDZ
    Joined: Oct 16, 2018
    Posts: 310


    Probably one of the most talented welders on the interwebs.
    The guy does fantastic work, and openly shares tips on welding.
    Always takes on challenges from watchers. Probably the purpose of the video.
  11. Not the most elegant solution I've ever seen, but if it works....
    ekimneirbo, loudbang and VANDENPLAS like this.
  12. KevKo
    Joined: Jun 25, 2009
    Posts: 635

    from Motown

    But why? In what application would that be needed? Or is it just a "hey, what if"?
    VANDENPLAS and loudbang like this.
  13. leon bee
    Joined: Mar 15, 2017
    Posts: 592

    leon bee
    from Arkansas!

    It would take a pretty cynical person to not find that video interesting.
  14. nickleone
    Joined: Jun 14, 2007
    Posts: 351


    I worked in a refinery in my youth. The older welders would "weld" a piece of copper tube to the steel workbench . They used 7018 rod. I was difficult to remove from the bench.

    427 sleeper and loudbang like this.
  15. williebill
    Joined: Mar 1, 2004
    Posts: 2,843


    Pretty cool. Liked the way he chased the molten aluminum around to make it flow out evenly. I've never done that with dissimilar metals, but in the 70s, I liked moving aluminum around with just the heliarc torch ( TIG to the younger guys). Always tried to make my work look good. Thanks for posting.
    loudbang likes this.
  16. RichFox
    Joined: Dec 3, 2006
    Posts: 10,020

    Member Emeritus

    Some sales guys came by the shop where I was working in the early 90s. They had a bar or steel welded to a bar of aluminum using friction welding. It was bent 90 degrees at the weld. Only the aluminum bent. Don't know what ever became of the process.
  17. Flathead Dave
    Joined: Mar 21, 2014
    Posts: 3,457

    Flathead Dave
    from So. Cal.

    The video said;
    "Hold on, keyboard commandos, I know you are frothing at the mouth to publicly whine about something in the comments section"

    Hit the nail on the head....HAHAHAHAHAHAHA
    Last edited: Jul 16, 2021
    ekimneirbo and loudbang like this.
  18. pirate
    Joined: Jun 29, 2006
    Posts: 667

    from Alabama

    Friction welding also known as Inertia welding is used a lot in the turbine aircraft engine and aerospace industry. It is often used to join dissimilar metals together including aluminum, ferrous alloys and super alloys. It involves spinning one of the metals and then forcibly pressing it into the other metal and as both surfaces overheat from friction a weld is formed. That is a oversimplification because both surfaces must be engineered to specific shapes and the equipment used is specialized involving the ability to spin one end a clutch system to break loose once the weld is accomplished. An example might be joining a shaft to a turbine compressor wheel or rotor in a turbine engine. It can be as simple as attaching a steel treaded stud to an aluminum plate. The process becomes becomes expensive due to the machines used and dedicated tooling to hold the parts for each specific job.
    loudbang and Hnstray like this.
  19. RichFox
    Joined: Dec 3, 2006
    Posts: 10,020

    Member Emeritus

    At the time I was working in the Components section at the UAL overhaul base in South City. Doing calibration. Prior too that I had worked for the processes engineers making all sorts of things for them to weld together with the EB welder and then cut it apart to see how the weld turned out. Also did Plasma Spray and hydro forming experiments. It was a pretty good job.
    Hnstray likes this.
  20. Sporty45
    Joined: Jun 1, 2015
    Posts: 1,005

    from NH Boonies

    Why did he heat the threaded end before starting to weld?
    loudbang likes this.
  21. I think it was to prove the bolt wasn't aluminum simply based on its appearance/color change after heating. That's my guess.
  22. TRENDZ
    Joined: Oct 16, 2018
    Posts: 310


    I think just to show that it was not aluminum. Aluminum would not discolor. Preemptive strike to the naysayers.
    loudbang and Sporty45 like this.
  23. 19Fordy
    Joined: May 17, 2003
    Posts: 7,298


    Was the bolt encased by a mound of aluminum welding rod
    or was it actually melted and fused with the aluminum as in fusion welding.

    Looks like the former.
    loudbang likes this.
  24. blowby
    Joined: Dec 27, 2012
    Posts: 7,952

    from Nicasio Ca

    I weld that stuff all the time. I use a special process, called JB Weld.

    Enjoyed the video, thanks.
  25. Hnstray
    Joined: Aug 23, 2009
    Posts: 12,171

    from Quincy, IL

    I believe you are correct ….”it is the former”

    ekimneirbo and loudbang like this.
  26. Well, he didn't technically weld the two metals but he attached one to the other and it apparently was effective.
    46international and loudbang like this.
  27. seb fontana
    Joined: Sep 1, 2005
    Posts: 7,139

    seb fontana
    from ct

    Ok I could do that "welding".. But sure as shit the peice of aluminum would arc and stick to the bench, guaranteed!
    loudbang likes this.
  28. ekimneirbo
    Joined: Apr 29, 2017
    Posts: 2,094

    from Brooks Ky

    For the guys that are complaining, its basically a similar process to soldering or brazing parts together. Joining by using surface tension rather than actually blending the metals composition of alloys. He just takes it one step further and shows you how to attach stainless to aluminum. Think about it.......If you had an aluminum panel that was dented and you needed to pull it out without drilling a hole, you could do this just like the "dent pullers" that are used for steel panels. Then grind it off and no hole left behind. Or maybe you need something you can attach a brace to just to stiffen the aluminum panel. With the bolt, you can still remove the bracket or panel. Its just another weapon in our tool arsenal as far as I'm concerned.
    dirty old man, loudbang and Budget36 like this.

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