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The University Of Lahore
What is
Extrusion?






Drawing:












   Forward / backward extrusion
   Direct/Indirect Extrusion
   Hot / cold extrusion
Forward extrusion:
Backward Extrusion:
Direct Extrusion:
Indirect Extrusion:
Hot Extrusion:
Cold Extrusion:
Hydrostatic Extrusion:
   Horizontal Hydraulic Press




   Vertical Hydraulic Press









Uniform Wall
Thickness
Exceptions
Working Principle











ALLUMINIUM
EXTRUSION






    .

Uses




Brass Parts>>>>>>>







   Limited complexity of parts.
   Uniform cross sectional shape only.














INJECTION
EXTRUSION
            MOLDING
           




           
                        .
Extrusion process

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Extrusion process