joining/reforming metals

• What are the permanent methods of joining metals?

  Welding, brazing, epoxy resin adhesives, soldering
• What are the temporary methods of joining metals?

  Nuts and bolts, hinges, screws, rivets
• What is the function of a lathe machine?

  To turn metal into differently shaped round pieces
• What is the purpose of a milling machine?

  To cut slots in blocks of metals and face edges
• What are the differences between permanent and temporary methods of joining metals?

  Permanent methods:

  • Welding
  • Brazing
  • Epoxy resin adhesives
  • Soldering

  
  

  Temporary methods:

  • Nuts and bolts
  • Hinges
  • Screws
  • Rivets