correct answers graded A+
metallic - ANS ✔iron, copper, aluminum, magnesium, nickel, titanium, lead, tin, and zinc
properties: luster, high thermal conductivity, high electrical conductivity, ductile, good magnetic
properties
machining - ANS ✔removal of selected areas from a part in order to obtain a desired shape or
finish
alloys - ANS ✔materials composed of 2 or more elements
different types: substitutional (1 atom replaces another), interstitial (1 atom squeezes in with
the rest)
ferrite, pearlite, bainite, martensite, austenite - ANS ✔name the 5 grains of steel in order from
the softest, weakest, most ductile to the strongest, hardest, most brittle
strain - ANS ✔deforms or distorts under force/load
E=change in length/original length
measured in % or in/in
elongation/extension
Linked-Cell Shop - ANS ✔employs u-shaped cells, has sub-assembly lines, uses kanban
workers use multiple machines in their cell, decouplers that connect the movement of parts
between operators
, fatigue failure - ANS ✔failure by fracture after repeated stress, even if below the the yield
strength
this failure accounts for 90% of all mechanical failures
manufacturing system - ANS ✔a collection of operations and processes used to obtain a desired
product or component
physical properties - ANS ✔certain properties of materials that don't deal with stress
ex: weight, electrical properties, appearance,melting point,thermal, magnetic
Charpy test - ANS ✔impact test where the test specimen is supported on both sides and impact
is applied to the center notch
Ferrous materials - ANS ✔What kind of materials are mostly used in manufacturing?
Producer goods - ANS ✔goods manufactured for other companies to use to further
manufacture
Hardness - ANS ✔resistance to indentation, scratching, permanent determination, abrasion, and
ware
Stiffness - ANS ✔deals with modulus of elasticity (Young's Modulus)/ slope of the linear section
can have high amount if slope is steep
Value added - ANS ✔Direct labor done on a part
1. carbon content
2. alloy additions