Oxy-Acetylene Gas Welding

General Technology Description/Standards

  • 1. Demonstrate knowledge of Printing and Print processes.
  • 1a. Understand how to make a rubber or foam stamp and print multiple copies.
  • 1a. Understand how to make a woodcut and print multiple copies.
  • 1b. Understand and make a two colored woodcut or Linoleum print.
  • 1c. Understand and make silk screen prints.
  • 1d. Understand Offset printing.

  • 2. Demonstrate knowledge and skills in Electronic Publishing and Website design.
  • 2a. Understand and use HTML code to create a basic website.
  • 2b. Learn and use Adobe Illustrator to create and edit images for a website
  • 2c. Learn and use Adobe Photoshop to produce graphics for a website
  • 2d. Learn and use advanced Web coding techniques including CSS, PHP and Javascript
  • 2e. Upload and publish a website

  • 3. Demonstrate knowledge and skills in robotics programming.
  • 3a. Follow instructions to build multiple robots out of Lego.
  • 3b. Program robots to do specific tasks.
  • 3c. Design and create original robots and program them.

  • 4. Demonstrate knowledge and skills of injection molding.
  • 4a. Properly prepare molds and parts for injection molding.
  • 4b. Reproduce objects using an injection mold machine.
  • 4c. Create original molds for injection molded reproductions.

  • 4. Understand 3-D CAD and sculpting software
  • 4a. Understand the vocabulary of 3-D software and printing.
  • 4b. Understand and use CAD software to create virtual 3-D objects.
  • 4c. Understand and use sculpting software to create virtual 3-D sculptures.
  • 4d. Understand and use an SLA 3-D printer to make computer generated virtual objects real.

  • 5. Understand and use metal fabrication machines.
  • 5a. Understand software to create pieces for Plasma cutting..
  • 5b. Use PlasmaCam to cut parts to be welded into a 3-d object.
  • 5c. Use Metal Lathe to create prototype parts.
  • 5c. Use Arc, Wirefeed and Gas welders.

  • 6. Demonstrate knowledge and skills in wood working.
  • 6a. Understand safety precautions for wood tools and equipment.
  • 6b. Safely and Accurately make wood projects.

    • The teacher or a professional guest demonstrate the proper use of the Oxy-Acetylene torch.

    Students are given a study guide for the Oxy-Acetylene torch. After passing the Oxy-Acetylene written and practical test with 100 percent they may use the torch to make practice welds. Three welds, (Straight bead, Butt, and Lap) must be turned in for a grade.

    Evaluation:
    1 point for cleaning of welds prior to turning in
    3 points for each weld based on the quality of the weld including:
  • Appearance
  • Penetration
  • Lack of defects such as porosity, craters, and undercutting


    • 10 Points Total


  • 1: Satisfactory weld bead that could be more uniform
  • 2: Poor bead caused by a torch tip that is too large for material being welded or slow speed of travel
  • 3: Caused by moving too rapidly, not allowing a proper weld bead to form
  • 4: Satisfactory weld except for burned section at far right. Defect caused by not moving the weld bead fast enough as the weld is being completed.


    • A troubleshooting guide from https://weldguru.com/weld-troubleshooting/ can be found here.



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