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CNC Machining. MAE 165 Mohammed Albuali Kevin Hung John Shamblin. CNC Overview. Computer Numerical Control machining is a subtractive method 5 axes of control at most, 3 axes of control at the UC, Irvine CNC machine Tolerance limits are determined by accuracy of x-y tables

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cnc machining

CNC Machining

MAE 165

Mohammed Albuali

Kevin Hung

John Shamblin

cnc overview
CNC Overview
  • Computer Numerical Control machining is a subtractive method
  • 5 axes of control at most, 3 axes of control at the UC, Irvine CNC machine
  • Tolerance limits are determined by accuracy of x-y tables
  • CNC has the highest relative tolerances of any manufacturing method
preparing
Preparing
  • Produce model of part using SolidWorks or AutoCAD, this is saved as a CAD file
  • Convert CAD file to CAM file
  • Put CAM file into CNC machine
  • Ensure that the x-y table is level and aligned
raw material
Raw Material
  • For the demonstration: Al - 7”x7”x.25”
  • Determine dimensions of and mount work piece
calibration
Calibration
  • Find x=0 and y=0 coordinates a corner of the work piece using the edge finder
  • Find relative height of each tool using the dial indicator and input measurement into CNC machine
tool list
Tool List
  • Select tools and place in collets
  • Arrange tool in order to be used
machining
Machining
  • Run CAM file on the CNC machine
  • Change tools when prompted
  • Use jets and lubricants were needed to cool work piece
finishing piece
Finishing Piece
  • Perform tertiary operations after removing from CNC machine
  • Clean off lubricants
  • Clean up lab