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CNC Test Study Questions & Answers 2024/2025
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CNC Test Study Questions & Answers 2024/2025
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CNC Test Study Questions & Answers2024/2025
CNC - ANSWERSComputer Numerical control
Numerical Control - ANSWERSa method of automatically operating a manufacturing machine based on a
code of letters, numbers,and special characters.
Machine Control Unit (MCU) - ANSWERSBrain of the NC machine
Data Processing Unit (DPU) - ANSWERSReads the part program
Control Loop Unit (CLU) - ANSWERSControls the Machine tool operation
Two types of control systems - ANSWERS(1) Point-to-point and (2) Continuous-path
Point-to-point controllers - ANSWERSCauses the tool to move to a point on the part and execute an
operation at that point only. The tool is not in continuous contact with the part while it is moving.
Examples of Point-to-point controllers - ANSWERSDrilling, reaming, punching, boring, and tapping
Continuous-path controllers - ANSWERSCauses the tool to maintain continuous contact with the part ad
the tool cuts a contour shape.
Examples of Continuous-path controllers - ANSWERSMilling along any lines at any angle, milling arcs, and
Lathe turning
In a part program a block is equivalent to - ANSWERSa line of codes
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