CNC Machining

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 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 For the demonstration: Al - 7”x7”x.25” Determine dimensions of and mount work piece

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 Select tools and place in collets Arrange tool in order to be used

Machining Run CAM file on the CNC machine Change tools when prompted Use jets and lubricants were needed to cool work piece

Finishing Piece Perform tertiary operations after removing from CNC machine Clean off lubricants Clean up lab