Joining

Joining

1. Permanent Joints

   • welding,soldering.
     • three types
       • Soft soldering
         • tin-lead alloy
         • 400ºC.
       • Hard soldering
         • Copper,brass
         • 800ºC.
       • Oxyacetylene welding
         • 3000ºC.
   • others
     • Rivets
       • metal tube
       • a tool known as a rivete
   • Press fit joint
     • a pin with a slightly larger diameter
   • Adhesives
     • different types
       • hot metal adhesives, waterproof and isntant glues.

2. Nuts and bolts

   • A screw goes through a sheet.
     • keyed joint
       • with a piece of metal he gets inside.

3. Screws

   • It is a screw that joins another because sometimes there is a threaded hole
     • splined shafts
       • two pieces grooves

4. Threaded stay bolts

   • the bolt grooves
     • sliding joints
       • two objects joined together