Jul 03, 2025  
2025-2026 College Catalog 
    
2025-2026 College Catalog

WLD 117 - Introduction to CNC Plasma Cutting

3 Contact Hours, 2 Credits
1 lecture period 2 lab periods


Procedures and techniques in Computer Numerical Control (CNC) plasma arc cutting. Includes health, safety, and environmental practices; history of plasma arc cutting; software and coordinate systems; tool paths, importing images, and cutting with a CNC plasma machine.

Prerequisite(s): CAD 101  or CAD 117  and WLD 110  
Information: Prerequisite(s) may be waived with welding industry experience.
Button linking to AZ Transfer course equivalency guide 

Course Learning Outcomes
  1. Implement all safety protocols
  2. Demonstrate how to set up CNC plasma cutting operation for various materials.
  3. Use appropriate terminology in the CNC plasma arc cutting process.
  4. Demonstrate how to write, modify, and edit new and existing CNC cutting programs.
  5. Run a CNC plasma cutting project from a created program.

Performance Objectives:
  1. Demonstrate all safety protocols.
  2. Describe the terminology used in the CNC plasma arc cutting process.
  3. Use appropriate terminology in the CNC plasma arc cutting process
  4. Perform importing images into Torchmate CAD.
  5. Demonstrate and determine process for setting arc length and travel speeds for various materials.
  6. Demonstrate how to set up power supply operations, CNC related software and safely jog the plasma cutting equipment through different coordinate systems.
  7. Demonstrate how to write, modify, and edit new and existing CNC cutting programs.
  8. Create a program and run a robotic welding project.

Outline:
  1. Health, Safety, and Environmental Practices
    1. Eye and ear protection
    2. Electric shock
    3. Arc rays
    4. Fumes and gases
    5. Fire and explosion
    6. Cylinder handling
    7. Pinch and crush points
  2. Plasma Cutting Terminology
    1. Definitions
    2. Applications
  3. Plasma Cutting Equipment
    1. How plasma cutting works
    2. Manual plasma cutting
    3. CNC-operated plasma cutting
    4. Process variables
    5. Consumables
    6. Gas selection
    7. Cut quality
  4. CNC-Related Software and Coordinate Systems
    1. File types
    2. CNC software
    3. Coordinate systems
  5. G-Code Programming
    1. Code letters
    2. Using G-Code
    3. G-Codes supported
  6. Introduction to tool paths
    1. Tool path types
    2. Tool path offset
    3. Applications
  7. Torchmate Driver Software User Interface
    1. Main screen features
    2. Menus
      1. Pull-down menu bar
      2. File
      3. Configuration
      4. Controller
      5. View
      6. Coordinates
      7. Favorites
    3. Boxes
      1. DRO
      2. Tool path viewport
    4. Control panels
      1. G-Code
      2. Jog
      3. Point
  8. Test Cutting
    1. Set amperage
    2. Set the height
    3. Run the line speed test
    4. Set the best voltage
  9. Introduction to Torchmate CAD
    1. Mainscreen features
    2. Importing Images into Torchmate CAD
      1. Vector graphics
      2. Raster images
      3. Importing raster images
  10. Basic CAD Project
    1. Sizing a part
    2. Round corners
    3. Add text
    4. Create bridges
    5. Creating a tool path