Master of Engineering Computer-Aided Manufacturing Flashcards
7 cards from real ME or MEng Master of Engineering practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Master of Engineering Computer-Aided Manufacturing flashcards as text
What does the term 'process capability index Cpk' measure in statistical process control?
Answer: The degree to which a process is both centered and within specification limits
Cpk accounts for both process spread and mean shift relative to specification limits, indicating actual process capability.
In robotic manufacturing cells, which sensor type is most effective for detecting surface defects on shiny metallic parts?
Answer: Structured light 3D scanners
Structured light scanning projects patterns onto surfaces and captures reflected geometry, enabling high-resolution defect detection even on reflective materials.
Which STEP (Standard for the Exchange of Product model data) protocol is used to transfer CAD geometry between different software platforms?
Answer: STEP AP203
STEP AP203 (Application Protocol 203) defines the exchange of configuration-controlled 3D design data between CAD systems.
In finite element analysis (FEA) for manufacturing, what is the effect of using a finer mesh near stress concentrations?
Answer: It increases solution accuracy by better capturing high stress gradients
Finer meshes near stress concentrations capture steep stress gradients more accurately, reducing discretization error.
What manufacturing defect does the term 'chatter' refer to in milling operations?
Answer: Self-excited vibration causing poor surface finish and dimensional error
Chatter is regenerative self-excited vibration between tool and workpiece, producing wavy surfaces and accelerating tool wear.
In the context of CAM for additive manufacturing, what is 'support structure optimization' primarily designed to minimize?
Answer: Material waste and post-processing labor while ensuring structural support
Optimized support structures reduce material use and difficult-to-remove supports while preventing part collapse during printing.
Which simulation method is best suited for modeling metal flow during a closed-die forging process?
Answer: Finite Element Method with remeshing (FEM)
FEM with adaptive remeshing handles the large plastic deformations and contact conditions characteristic of closed-die forging.