Maricopa Community Colleges  GTC236   19936-20006 
Official Course Description:   MCCCD Approval:  05/25/93  
GTC236      19936-20006 L+L 3 Credit(s) 6 Period(s)
CAD CAM Programming for NC Machines
Programming of Numerical Control (NC) Mill, Lathe, and Wire Electrical Discharge Machine (EDM), utilizing Computer Aided Drafting and Computer Aided Manufacturing (CAD/CAM) for design and generation of part geometry. Verification of tool path using CAD graphics. Generate programs using CAM post processor. Prerequisites: GTC/MET206.
Cross-References:   MET236
 
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MCCCD Official Course Competencies:
 
GTC236   19936-20006 CAD CAM Programming for NC Machines
1. Log onto a computer and access a CAD system. (I)
2. Retrieve drawings from CAD database. (II)
3. Activate CAM system features. (III)
4. Determine a tool cutter path and generate a program with a CAD/CAM system. (IV)
5. Verify program using CAD graphics. (V)
6. Use post processor to link specific operations together. (VI)
7. Set up and execute a program on a three-axis CNC Milling Machine. (VII)
8. Apply CAD/CAM features for industrial applications. (VIII)
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MCCCD Official Course Outline:
 
GTC236   19936-20006 CAD CAM Programming for NC Machines
    I. Computer competency
        A. Log on and format disks and copy disk and files
        B. Computer interacting with N/C machines
        C. Operate tape punch and plotter, printer
      II. CAD system familiarization and operation
          A. Produce drawings using CAD
          B. Manipulate drawing views; mirror, rotate, extend, scale, x-form
          C. Create intermediate file for CAM transmission
        III. CAM system familiarization and operation
            A. Translate intermediate file from CAD
            B. Analyze post processors
            C. Lathe, mill, and wire EDM CAM applications
          IV. CAD/CAM utilization
              A. Retrieve sample CAD drawings and revise for CAM cutter path
              B. Evaluate matching time and cutter techniques operations
            V. Cutter geometry and tool path verification using CAD graphics
                A. Establish tooling, set TLO's, speeds and feeds
                B. Parameter setting, cutter compensations, number of cuts, (roughing, finishing)
              VI. Chaining and post processors
                  A. Creating a word address program
                  B. Send program to plotter and evaluate cutter path
                  C. Punch paper tape for back-up
                VII. Set-up and operation of three axis (N/C) milling machine
                    A. Set up tooling in tool holders
                    B. Set up clamping fixture
                    C. Set all reference points
                    D. Load and test run program
                  VIII. Industrial applications
                      A. 1d and 3d geometry, work holding
                      B. 2,3,4, and 5 axis programming
                      C. Macros and sub routines, (repetitive program)
                      D. Mirror, rotations and planes
                      E. Pockets and projections
                      F. Helical milling
                      G. Tool length offset and tooling application
                      H. Cycle time and data storage
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