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METALWORKING - Coggle Diagram
METALWORKING
HOT
METAL FORMING PROCESSES
SAND CASTING
mold made of sand, clay, bonding material (binder)
liquid state (melting point)
engine block and cylinder heads
EXTRUSION
metal squeezed into closed cavity
mechanical or hydraulic press
long straight metal parts
DIE CASTING
small metal parts in large quantity
aluminium, zinc, copper alloys
solid state, very fine particles
FORGING
heat
deformation through compressive force (hammer)
strength and ductility improved
COLD
METAL FORMING PROCESSES
STAKING
protrusion in one piece meets a hole in another
deforming metal to join two metal pieces together or assembly components
COLD EXTRUSION
small machine parts
hollow objects
tin, zinc, copper, aluminium
BURNISHING
hard tool (ball or roller)
pressure
smooth surface
COLD ROLLING
metal sheet compressed and squeezed
rollers