Joining

Joining

1. permanent

   • soldering and welding
     • soft
       • tin-lead
         • 400ºC
     • hard
       • copper or brass
         • 800ºC
     • Oxyacetylene
       • 3000ºC
   • rivets
     • used
       • join pieces
   • press fit
     • pressure
       • to dilate
         • opening
   • Adjesives
     • diferent tipes
       • hot melt
       • waterprof and instant glues

2. temporary

   • nuts and bolts
     • joint pieces
       • insert bolt
         • througt the pieces
   • screws
     • joint
       • one piece to other
   • threaded stay bols
     • this bolt
       • have
         • grovees at both
   • keyed joint
     • metal key
       • joint
         • two pieces
   • splined shafts
     • two pieces
       • are joined
       • have grooves
   • sliding joints
     • two pieces
       • are joined
       • can move over the other