TECHNICAL MATERIALS: METALS

TECHNICAL MATERIALS: METALS

1. PROPERTIES

   • MECHANICAL
     • They are hard
     • Some are malleable
     • Some are ductile
     • They arew tough
   • THERMAL
     • They are good conductors of heat
     • They expand when the temperature rises contract when it falls
     • Some metals can easly be soldered to other metals
   • ELECTRICAL AND MAGNETIC PROPERTIES
     • They are good conductors of electric current
     • Some have magnetic behaviour
   • OTHER PROPERTIES
     • Many rust easly
     • They are sound conductors
     • They are solid at room temperature
     • They are heavy and dense

2. FERROUS MATERIALS

   • Iron
   • Steel
   • Cast iron

3. NON FERROUS METALS

   • Cooper
   • Tin
   • Aluminium
   • Zinc

4. METALWORKING

   • 1-Mesauremnts and layout
   • Holding and bending
   • Cutting
   • Perforating
   • Filing
   • Joints
   • Metal treatments
   • Recycling