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Review of processes

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					Manufacturing
Processes
Understanding the Technology of
Manufacturing
Manufacturing Processes
   Central to the manufacturing enterprise.
          Design determines 70% of the manufacturing cost
          Manufacturing expends 70% of the total cost
   Understanding of processes critical to
    improvement.
          Materials
          Changes made by the process
          Application, costs, advantages/disadvantages, etc.
   More than 300 processes identified; still
    increasing.
   Manufacturing engineers must be capable of
    understanding and managing process
    systems.
Materials

   Solids (realm of manufacturing)
    – Metals
    – Plastics
    – Ceramics
   Liquids and gases (more often the realm
    of Chemical Engineers)
    – Manufacturing engineers make things
    – Chemical engineers make stuff
Materials ― Advantages

   Metals ― Inexpensive, strong, tough,
    durable, well proven
   Plastics ― Easy to mold, low cost and
    light weight, corrosion resistant
   Ceramics ― Hard, thermally resistant,
    weatherable
Taxomony of processes

 Thinking fundamentally rather than
  specifically
Shaping ― mass reducing

   Mechanical reduction:
                               Milling Video
    – Milling
    – Lathe turning
    – Drilling
    – Grinding
   Thermal reduction:
    – Example: Carbon-carbon
   Chemical reduction:
    – Example: Etching
Shaping ― mass conserving

   Consolidation
                                Sprayup video
    – Sintering
    – Thermosetting plastics
   Deformation (metals)       Metal drawing video
    – Metal casting
    – Drawing
                                 Forging video
    – Forging
    – Rolling                   Rolling video
    – Bending/cutting
Shaping ― mass conserving

   Deforming (plastics)
    – Injection molding    Injection molding video

    – Extrusion
                           Extrusion video
    – Blow molding
    – Thermoforming        Blow molding video

    – Rotational molding   Thermoforming video

                            Rotational molding video
Shaping ― Joining
   Mechanical
    – Riveting
    – Nuts and bolting
    – Swaging
                         Welding video
   Thermal
    – Welding
    – Ultrasonic/RF
   Chemical
    – Adhesives
Non-shaping

   Heat treatment
    – Anneal            Hardening video

    – Hardening
   Surface finishing
    – Preparation        Painting video
    – Coating
    – Modification
Thank You
Be familiar with processes

				
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