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EDMM 1500 Exam 1 (WMU) Terms in this set (74) Key elements of manufacturing -Product design -Material Selection -Manufacturing processes Material Selection -Metals -Plastics -Forest products (wood, paper, cardboard) -Ceramics -Glass Process £6.77
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EDMM 1500 Exam 1 (WMU) Terms in this set (74) Key elements of manufacturing -Product design -Material Selection -Manufacturing processes Material Selection -Metals -Plastics -Forest products (wood, paper, cardboard) -Ceramics -Glass Process
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CGAP - Certified Government Auditing Professional
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CGAP - Certified Government Auditing Professional
EDMM 1500 Exam 1 (WMU)
Terms in this set (74)
Key elements of manufacturing -Product design
-Material Selection
-Manufacturing processes
Material Selection -Metals
-Plastics
-Forest products (wood, paper, cardboard)
-Ceramics
-Glass
Process Selection -Casting & m...
Johaness Gutenberg: Invented the movable type printing press. Allowed for mass
production of books, newspapers, etc
Sir Richard Arkwright: First factories using water powered textile machinery. Allowed for
mass production of clothing
James Watt & Matthew Boulton: Perfected steam engines for use in factories.
Historical background (Key figures, What
they did,
Henry Maudslay: Screw cutting engine lathe. Allowed for mass production of screws
Why was it important)
Eli Whitney: Interchangeable parts (showed congress with a gun) also invented the
cotton gin. Allowed easier production because of interchangeable parts.
John Wesley Hyatt: First plastic injection molding.
C.L Coffin: Patented arc welding.
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Focus of manufacturing industries:
-To produce a quality product
-Fills a specific customer need
-Fit for intended use
Manufacturing -Appropriate useful life
-To be productive
-Economy of scale vs market demand
-Input/output
-To make a PROFIT
Metrology Science of dimensional measurement
Tolerance Minimum to maximum where the product will still function. Permissible variation.
Precision Repeatability. How close the repeated measurement of the same item
Resolution. Smallest increment we can measure. Smallest difference that can be
Sensitivity
detected or distinguished
Coordinate Measuring Machine
-Probe head is made of ruby
CMM -Probe head contacts part surface
-Logs X & Y coordinates w/each contact
-Interpolates complex surface
A profilometer is an instrument that measures a surface's profile or roughness at the
nanometer level. A contact profilometer has a diamond stylus that physically touches
Profilometers
the surface. It is not sensitive to surface color or reflectance. Optical or non-contact
profilometers scan the surface with light.
A white light scanner is a device for performing surface height measurements of an
object using coherence scanning interferometry with spectrally-broadband, "white
light" illumination.
Blue and white light scanning
Blue light 3D scanner is a type of coordinate measuring machine that measures millions
of points per single scan/measurement. It uses advanced measuring and projection
techniques to produce high quality data and precision accuracy for full-object
dimensional analysis.
Hardness:
-Resistance to indentation, abrasion, deformation, or machining
-Remember "hard" is often brittle
-Failure is abrupt
-Ex) cast iron skillet
Difference between hardness and ductility
Ductility: ability to be shaped. A measure of a metal's ability to withstand tensile stress—
any force that pulls the two ends of a material away from each other. The term "ductile"
literally means that a metal substance is capable of being stretched into a thin wire
without becoming weaker or more brittle in the process.
Physical: Measured w/out changing the chemical nature of the material
-Melting point
Properties of Materials: Physical
-Boiling point
-Thermal expansion
Chemical: Result in the alteration of the molecules of the substance
Properties of Materials: Chemical -Oxidation of metals
-Ultraviolet (UV) breakdown of polymers
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