ME20026 Manufacturing Operations and Technology (ME20026)
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ME20026: MANUFACTURING PROCESS SELECTION:
CLASSIFICATION OF MANUFACTURING PROCESSES: PROCESS CAPABILITY
Transformative manufacturing processes: Subtractive Additive manufacturing
Casting Forming Plastic Surface manufacturing processes Definition:
Processes Processes Processing processes processes Powder metallurgy A measure of the acceptability of the variation of
Sand Forging Injection Thermal Machining Contact moulding process
casting Rolling moulding hardening Electrical Pultrusion
Shell Drawing Reaction Shot discharge Stereolithography UTL−LTL
moulding Cold injection peening machining 3D printing C p=
Gravity die forming moulding Electrochemical Selective laser sintering 6s
casting Cold Compression machining Laminated object
Pressure heading moulding Electron beam manufacturing UTL is upper tolerance limit
die casting Swaging Resin machining Fused filament fabrication LTL is lower tolerance limit
Centrifugal Superplastic transfer Laser beam Carburising s is standard deviation of process variability
casting forming moulding machining Nitriding Above equation assumes average to be at midpoint
Investmen Sheet metal Vacuum Chemical Ion implantation of specification range
t casting shearing forming machining Anodising
Ceramic Sheet metal Blow Ultrasonic Chromating One-sided capability:
mould forming moulding machining Chemical vapour Used if process average is often offset from
casting Spinning Rotational Abrasive jet deposition specification range
Plaster Metal moulding machining Physical vapour deposition
mould injection Continuous Electroless nickel Upper one-sided index:
casting moulding extrusion Electroplating UTL−X
Squeeze Continuous Hot dip coating C pu =
casting extrusion Thermal spraying 3s
Welding
Brazing Lower one-sided index:
Soldering X−LTL
Thermoplastic welding C pl =
Adhesive bonding 3s
Mechanical fastening
techniques X is process average
Minimum of Cpu and Cpl used to indicate process
capability, Cpk, known as process capability index.
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