IME 146 final questions well answered
already passed
allowance equation - correct answer ✔✔ MMC internal feature - MMC external feature =
tightest fit between parts
clearance equation - correct answer ✔✔ LMC internal feature - LMC external feature = loosest
fit between parts
three components of cnc machines - correct answer ✔✔ program of instructions, machine
control unit, processing equipment
three main ways G&M code can be created for a CNC machine - correct answer ✔✔
conversational programming, CAD/CAM programming, manual programming
CNC milling G&M code is based off the __________ coordinate system - correct answer ✔✔
cartesian
the most common WCS G code - correct answer ✔✔ G54
A ___ code is a preparatory function, it preps the CNC machine for some sort of motion. -
correct answer ✔✔ G
An __ code is a miscellaneous function that causes an action to occur within the G&M code -
correct answer ✔✔ M
, The _______ _________ generates the machine specific G&M code for the CNC machine in the
CAD/CAM system - correct answer ✔✔ post process
As material leaves the injection molding machine nozzle and enters the mold cavity, the flow
path of the material is: - correct answer ✔✔ nozzle, sprue, runner, gate, cavity
what does the term "flash" mean in the context of injection molded parts? - correct answer
✔✔ a volume of injected material escaped out of the mold cavity and between the mold halves,
leaving a thin section of material attached to the part precisely on the parting line
what is the most common cause of a mold cavity to not have enough material injected into it? -
correct answer ✔✔ the injection molding machine has the injection pressure set too low
what connects the mold to the injection molding machine's nozzle and is the sealing interface
between the mold and the machine? - correct answer ✔✔ sprue bushing
what term is used to describe the angle on vertical walls of a mold to aid in the part releasing
correctly from the mold? - correct answer ✔✔ draft
the term used to describe an injection event which does not entirely fill the mold cavity or
cavities? - correct answer ✔✔ short shot
what are the two primary causes of "flash" - correct answer ✔✔ clam force too low, injection
pressure too high
what type of polymers are utilized in the injection molding manufacturing process - correct
answer ✔✔ thermoplastic
the four distinct categories of nontraditional machining methods based on the energy used to
machine the workpiece - correct answer ✔✔ mechanical, electrical, thermal, chemical
already passed
allowance equation - correct answer ✔✔ MMC internal feature - MMC external feature =
tightest fit between parts
clearance equation - correct answer ✔✔ LMC internal feature - LMC external feature = loosest
fit between parts
three components of cnc machines - correct answer ✔✔ program of instructions, machine
control unit, processing equipment
three main ways G&M code can be created for a CNC machine - correct answer ✔✔
conversational programming, CAD/CAM programming, manual programming
CNC milling G&M code is based off the __________ coordinate system - correct answer ✔✔
cartesian
the most common WCS G code - correct answer ✔✔ G54
A ___ code is a preparatory function, it preps the CNC machine for some sort of motion. -
correct answer ✔✔ G
An __ code is a miscellaneous function that causes an action to occur within the G&M code -
correct answer ✔✔ M
, The _______ _________ generates the machine specific G&M code for the CNC machine in the
CAD/CAM system - correct answer ✔✔ post process
As material leaves the injection molding machine nozzle and enters the mold cavity, the flow
path of the material is: - correct answer ✔✔ nozzle, sprue, runner, gate, cavity
what does the term "flash" mean in the context of injection molded parts? - correct answer
✔✔ a volume of injected material escaped out of the mold cavity and between the mold halves,
leaving a thin section of material attached to the part precisely on the parting line
what is the most common cause of a mold cavity to not have enough material injected into it? -
correct answer ✔✔ the injection molding machine has the injection pressure set too low
what connects the mold to the injection molding machine's nozzle and is the sealing interface
between the mold and the machine? - correct answer ✔✔ sprue bushing
what term is used to describe the angle on vertical walls of a mold to aid in the part releasing
correctly from the mold? - correct answer ✔✔ draft
the term used to describe an injection event which does not entirely fill the mold cavity or
cavities? - correct answer ✔✔ short shot
what are the two primary causes of "flash" - correct answer ✔✔ clam force too low, injection
pressure too high
what type of polymers are utilized in the injection molding manufacturing process - correct
answer ✔✔ thermoplastic
the four distinct categories of nontraditional machining methods based on the energy used to
machine the workpiece - correct answer ✔✔ mechanical, electrical, thermal, chemical
