IET 170 MIDTERM STUDY GUIDE
Accuracy - Answers - to the ability to hit what is aimed at (the bull's‐eye of the target)
Precision - Answers - to the repeatability of the process.
Tolerance - Answers - undesirable but permissible deviation from a desired dimension
gage blocks - Answers - provide industry with linear standards of high accuracy that
are necessary for everyday use in manufacturing plants
metrology - Answers - the scientific study of measurement
variables - Answers - using calibrated instruments to determine the actual dimensions
of the product for comparison against specifications and tolerances
attributes - Answers - using gages to determine if the product is good or bad, resulting
in a yes/no, go/no‐go decision.
Gaging (or gauging) - Answers - is the term for determining whether the dimension or
characteristic is larger or smaller than the established standard or is within some range
of acceptability
four fundamental measures on which all others depend are - Answers - length, time,
mass, and temperature.
Absolutes - Answers - requirements are those for which there can be no compromise
case‐history method - Answers - often involves simply observing what happens to, or
reconstructing 'the case history' of a single participant or group of individuals
conceptual design - Answers - is an early phase of the design process, in which the
broad outlines of function and form of something are articulated. It includes the design
of interactions, experiences, processes, and strategies.
design - Answers - a plan or drawing produced to show the look and function or
workings of a building, garment, or other object before it is built or made.
functional design - Answers - is a paradigm used to simplify the design of hardware
and software devices such as computer software and increasingly, 3D models.
production design - Answers - developing a device, assembly, or system such that it
be produced as an item for sale through some production manufacturing process
prototype - Answers - working model is constructed to permit a full evaluation of the
product
, relative - Answers - compromisable
nature of the process - Answers - refers to both variability and accuracy
back rake angle, α - Answers -
boring - Answers - the process of enlarging a hole that has already been drilled
broaching - Answers - a machining process that uses a toothed tool, called a broach,
to remove material.
chatter - Answers - The elastic deflection behaves like a big spring. The mechanism by
which a process dissipates energy is called
cutting tool - Answers - is used to machine the workpiece
cutting tool geometry - Answers - influences the magnitude and direction of the cutting
force, especially the amount of the force component in the modulation direction Y
depth of cut (DOC) - Answers - represents the third dimension. In turning, it is the
distance the tool is plunged into the surface
feed - Answers - is the amount of material removed per revolution or per pass of the
tool over the workpiece
machine tool - Answers - a machine for handling or machining metal or other rigid
materials, usually by cutting, boring, grinding, shearing, or other forms of deformation.
milling - Answers - a process performed with a machine in which the cutters rotate to
remove the material from the work piece present in the direction of the angle with the
tool axis
turning - Answers - machining process in which a cutting tool, typically a non-rotary
tool bit, describes a helix toolpath by moving more or less linearly while the workpiece
rotates.
ceramics - Answers - are made of pure aluminum oxide, Al2O3, or Al2O3 is used as a
metallic binder
cermets - Answers - any of a class of heat-resistant materials made of ceramic and
sintered metal.
cutting fluids - Answers - acts primarily as a coolant and secondly as a lubricant,
reducing the friction effects at the tool/chip interface and the work flank regions.
Accuracy - Answers - to the ability to hit what is aimed at (the bull's‐eye of the target)
Precision - Answers - to the repeatability of the process.
Tolerance - Answers - undesirable but permissible deviation from a desired dimension
gage blocks - Answers - provide industry with linear standards of high accuracy that
are necessary for everyday use in manufacturing plants
metrology - Answers - the scientific study of measurement
variables - Answers - using calibrated instruments to determine the actual dimensions
of the product for comparison against specifications and tolerances
attributes - Answers - using gages to determine if the product is good or bad, resulting
in a yes/no, go/no‐go decision.
Gaging (or gauging) - Answers - is the term for determining whether the dimension or
characteristic is larger or smaller than the established standard or is within some range
of acceptability
four fundamental measures on which all others depend are - Answers - length, time,
mass, and temperature.
Absolutes - Answers - requirements are those for which there can be no compromise
case‐history method - Answers - often involves simply observing what happens to, or
reconstructing 'the case history' of a single participant or group of individuals
conceptual design - Answers - is an early phase of the design process, in which the
broad outlines of function and form of something are articulated. It includes the design
of interactions, experiences, processes, and strategies.
design - Answers - a plan or drawing produced to show the look and function or
workings of a building, garment, or other object before it is built or made.
functional design - Answers - is a paradigm used to simplify the design of hardware
and software devices such as computer software and increasingly, 3D models.
production design - Answers - developing a device, assembly, or system such that it
be produced as an item for sale through some production manufacturing process
prototype - Answers - working model is constructed to permit a full evaluation of the
product
, relative - Answers - compromisable
nature of the process - Answers - refers to both variability and accuracy
back rake angle, α - Answers -
boring - Answers - the process of enlarging a hole that has already been drilled
broaching - Answers - a machining process that uses a toothed tool, called a broach,
to remove material.
chatter - Answers - The elastic deflection behaves like a big spring. The mechanism by
which a process dissipates energy is called
cutting tool - Answers - is used to machine the workpiece
cutting tool geometry - Answers - influences the magnitude and direction of the cutting
force, especially the amount of the force component in the modulation direction Y
depth of cut (DOC) - Answers - represents the third dimension. In turning, it is the
distance the tool is plunged into the surface
feed - Answers - is the amount of material removed per revolution or per pass of the
tool over the workpiece
machine tool - Answers - a machine for handling or machining metal or other rigid
materials, usually by cutting, boring, grinding, shearing, or other forms of deformation.
milling - Answers - a process performed with a machine in which the cutters rotate to
remove the material from the work piece present in the direction of the angle with the
tool axis
turning - Answers - machining process in which a cutting tool, typically a non-rotary
tool bit, describes a helix toolpath by moving more or less linearly while the workpiece
rotates.
ceramics - Answers - are made of pure aluminum oxide, Al2O3, or Al2O3 is used as a
metallic binder
cermets - Answers - any of a class of heat-resistant materials made of ceramic and
sintered metal.
cutting fluids - Answers - acts primarily as a coolant and secondly as a lubricant,
reducing the friction effects at the tool/chip interface and the work flank regions.
