Joining

Joining

1. permanent joining

   • soft soldering
     • use to make tin-lead
     • heated whit iron
   • hard soldering
     • heated by blwtorch
   • Oxyatecilene welding
     • i can reach 300º
   • riverts
     • a tube with a head at the end
     • it opens to join to other matirial
   • press fit joint
     • is a pin whit a large diameter
     • opened using hammer or pression
   • adhesives
     • many types
       • hot melt adhesives
       • waterproof
       • instrant glue

2. tenporary joining

   • nuts and bolts
     • bolt: is inserted though someting to join
     • washers track the bolt
   • screws
     • join one piece to another
   • threated stay bolts
     • itś middle smooth and have grooves
   • solined sharps
     • two pieces have grooves
   • keyed joints
     • joined putting keys in a groove
   • silding joints
     • joined and can slived