Crazy welding
Close
Login to Your Account
Results 1 to 7 of 7

Thread: Crazy welding

  1. #1
    Join Date
    Jul 2017
    Country
    CANADA
    State/Province
    Alberta
    Posts
    77
    Post Thanks / Like
    Likes (Given)
    23
    Likes (Received)
    3

    Default Crazy welding

    You must have seen videos of a cold welding process coming out of China. It’s also called crazy welding. I cannot find a source for the machines but I think it would work well for installing auto body panels. Does anyone have any experience with this method of welding?

  2. #2
    Join Date
    May 2019
    Country
    UNITED STATES
    State/Province
    Michigan
    Posts
    1,402
    Post Thanks / Like
    Likes (Given)
    387
    Likes (Received)
    627

    Default

    J B Weld...??

    Or maybe what we call "friction stir welding" when someone makes a typo in a program and uses what's left of an endmill to extrude material........

  3. Likes steve-l, Garwood liked this post
  4. #3
    Join Date
    Oct 2005
    Country
    UNITED STATES
    State/Province
    Pennsylvania
    Posts
    17,694
    Post Thanks / Like

    Default

    G.E. invented cold welding of strip materials in the 1950's

    Machine was quite large (hydraulic press) and had polished dies to mash the material together.

    Very limited usage.

  5. #4
    Join Date
    May 2011
    Country
    UNITED STATES
    State/Province
    New Jersey
    Posts
    649
    Post Thanks / Like
    Likes (Given)
    14
    Likes (Received)
    220

    Default

    Weld body panels... yeah right. All that stuff is glued together with panel bond now.

    Sent from my SM-G960U using Tapatalk

  6. #5
    Join Date
    Feb 2013
    Location
    Northern califorina, usa
    Posts
    322
    Post Thanks / Like
    Likes (Given)
    4
    Likes (Received)
    105

    Default

    Cold welding is at times referred to as Diffusion welding, Cold welding is a solid state process in which pressure is used at or near room temperature to produce a type of coalescence of metals with considerable deformation at the cold weld zone. Pressure for welding can be from a number of different types of systems such as mechanical presses, rolls and in some cases for very small work even hand operated tools.
    With this process there is a total absence of heat created during the process.
    Soft materials are best suited for cold welding, hardened or heat treated alloys are more difficult and in some cases imposable to cold weld.
    One of the useful aspects of this process is that dissimilar metals can be joined in this process. The process is far from new ,it's been around for years.

  7. #6
    Join Date
    Dec 2012
    Location
    Se Ma USA
    Posts
    1,735
    Post Thanks / Like
    Likes (Given)
    138
    Likes (Received)
    949

    Default

    Sheets of aluminum are welded to steel plates but the process is not exactly cold. lots of explosives involved.

  8. #7
    Join Date
    Feb 2013
    Location
    Northern califorina, usa
    Posts
    322
    Post Thanks / Like
    Likes (Given)
    4
    Likes (Received)
    105

    Default

    Quote Originally Posted by Scruffy887 View Post
    Sheets of aluminum are welded to steel plates but the process is not exactly cold. lots of explosives involved.
    What you describe is not at all like cold welding, Explosive force is not used.


Tags for this Thread

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
  •