Page 3 of 4 FirstFirst 1234 LastLast
Results 21 to 30 of 35

Thread: I have two pieces of aluminum metal. how do i bond them?

  1. #21
    Maximum Bitrate gork's Avatar
    Join Date
    Aug 2003
    Location
    Amarillo, TX
    Posts
    655
    Much stronger, no need for any special equipments.

    Most pop-rivets are aluminium they easily shear off.
    You can buy a pop rivet gun for $3-$5 dollars and a couple big bags of rivets for about a buck. Nuts and bolts are far more expensive. If you need good shear strength, buy better rivets (note that your average hardware store has a poor selection of rivets and they are about 10x more expensive there also) - I have a few 1/4" stainless steel rivets holding close to 1 ton on a shear with no problems. They also cost me 1/2 cent each at the bolt supply! The project is here if you want to see.

    Oh yeah; also JB weld is good stuff but depending on the stress you are putting on it, it's not a great idea. Plus it's even more expensive than rivets!
    MY CAR IS FOR SALE!
    See My Project Page for Details - 2003 BMW E46 ///M3
    Custom Dash Monitor Housing - OEM Fitment
    Custom Overhead DVD-ROM Housing in Headliner
    BMW I-Bus Integration
    My homepage with many other fun projects!

  2. #22
    Raw Wave
    Join Date
    Jun 2003
    Posts
    1,823
    Nuts and bolts are far more expensive

    True

    But it depend how many nuts and bolts are needed. He cant be needing 1000s nuts and bolts for a bracket that the overal solution cost far more if rivet was to be used.

    A few cent more for a simple nuts and bolts job wont hurt a one off project.

    Of course a cheaper solution can be acheived if the bracket was bended/fabricated correctly at the first place

  3. #23
    FLAC ShawJohn's Avatar
    Join Date
    Aug 2004
    Location
    On the edge!
    Posts
    1,790

    Bonding Aluminium

    The easiest way to get a non-structural bond is to use contact adhesive...

    - EVO STICK - or similar.

    Apply a small amount to each piece and let it dry. Once it feels almost touch dry, press the two pieces together and leave to bond for an hour or so.

    This isn't quite as strong as a weld but bear in mind that the Lotus Elise has a glued and riveted aluminium chassis...

    HTH


    John

  4. #24
    Maximum Bitrate gork's Avatar
    Join Date
    Aug 2003
    Location
    Amarillo, TX
    Posts
    655
    Do keep in mind that the adhesives used in manufacturing car chassis and similar materials are quite a bit different than what we are talking about. BMW frames are assembled with adhesives also, and the process is stronger and cheaper than welding (plus it does not weaken the metal), but the adhesive used to do the job is made of some pretty nasty chemicals and has to be heated to something like 500 degC to be usable
    MY CAR IS FOR SALE!
    See My Project Page for Details - 2003 BMW E46 ///M3
    Custom Dash Monitor Housing - OEM Fitment
    Custom Overhead DVD-ROM Housing in Headliner
    BMW I-Bus Integration
    My homepage with many other fun projects!

  5. #25
    FLAC djmickyg's Avatar
    Join Date
    Feb 2004
    Posts
    1,314
    TIG it.. i burnt myself with an aluminium welder today.. not fun.

    u can also spot weld aluminium ..

    jb wold hold i dont think. aluminium is too smooth for it to actually stick.. unless u ruff up the area ur sticking with some real course sand paper

    but as most people have said.. the eaisest way without a welder is just riverts.. or little screws and nuts

  6. #26
    FLAC Spaghetti's Avatar
    Join Date
    Jul 2003
    Location
    Spagcave, in da UK Today's phrase: J'aime Alizee
    Posts
    1,716
    Don't forget that car manufacturers have been bonding metal for years - if you look under the boot/bonnet/trunk/hood you will see structural bracing that are only bonded, since welding will distort the panel.

  7. #27
    Confusion Master
    Auto Apps:loading...
    Enforcer's Avatar
    Join Date
    Sep 2003
    Location
    If you go down to the woods today, You're sure of
    Posts
    14,626
    Quote Originally Posted by gork
    but the adhesive used to do the job is made of some pretty nasty chemicals and has to be heated to something like 500 degC to be usable

    Hmm, I think my carPC could do that sometimes

  8. #28
    Maximum Bitrate brrman's Avatar
    Join Date
    Aug 2003
    Location
    Indianapolis, IN USA
    Posts
    523
    Car: 2000 Audi A4 Avant 1.8t
    Carputer 2.0: removed. Back to stock.

  9. #29
    Newbie Redmachine's Avatar
    Join Date
    Jul 2004
    Location
    Katy, Texas
    Posts
    30
    take it to an exhaust shop, 40 bux they'll weld any aluminum /stainless / whatever

  10. #30
    Maximum Bitrate kiltjim's Avatar
    Join Date
    Feb 2004
    Location
    PA, USA
    Posts
    805
    Quote Originally Posted by brrman
    I've worked with this stuff, although cool for the fact that it welds aluminum, I've never gotten it to work like its supposed to on thicker metals. Maybe I'm doing it wrong, but I swear its the material.
    2000 Subaru OBS

    Dell P3 @ 900 Mhz
    7" Lilliput TS w/DigitalWW in-dash mount
    80GB External HD

    I am Zero Bitrate....

Page 3 of 4 FirstFirst 1234 LastLast

Similar Threads

  1. aluminum welding/brazing/soldering??
    By wompser in forum General MP3Car Discussion
    Replies: 3
    Last Post: 09-06-2005, 11:07 PM
  2. VB help needed - DVDplayer- Brushed metal
    By Custommx3 in forum MediaCar
    Replies: 2
    Last Post: 06-11-2004, 01:03 AM
  3. Do we need a metal PC case or is plastic OK?
    By -al- in forum General Hardware Discussion
    Replies: 3
    Last Post: 09-17-2003, 10:27 AM
  4. No metal Case
    By nolmscheid in forum General Hardware Discussion
    Replies: 12
    Last Post: 03-11-2002, 11:47 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •