Portland Community College | Portland, Oregon

The basic fabrication class gives the student the opportunity to design and fabricate a structure in a timely and efficient manner.  This course allows the student to experience challenges that arise during the fabrication process, and develop necessary fabricating techniques that can be applied to multiple fabrication applications.

Upon completion of the course students should be able to:

Following detailed written & oral instructions, theoretical concepts, layout and fabrication will also be covered with emphasis on, welding and Oxy-acetylene cutting, safety and environmental awareness, tool & equipment maintenance and communication.

• Ability to function safely in a weld shop environment.
• Proficiency with common metal fabrication tools.
• Ability to think critically and problem solve in order to successfully design and fabricate a structure in a safe and efficient manner.
• Use of shop math and layout skills to properly produce a working drawing of the structure and create an accurate material list.
• Produce a product that is within the specified proper dimensions and aesthetically pleasing

This is a outcome based course utilizing a lecture/lab format. This course includes classroom discussions, video tapes, and lab demonstrations covering technical skills. Course outcome will include the following: Following detailed verbal or written instructions, theoretical concepts, layout, fabrication, welding, oxy-fuel cutting, safety and environmental awareness, workspace maintenance, equipment and tool cleanliness, communication, completing time sheets or work assignments, Computations, human relations and safe practices in the performance of daily duties. Course outcomes will include:

At the beginning of the course, the course syllabus will identify the methods used to evaluate student progress and the criteria for assigning a course grade. The student will be evaluated on his/her ability to demonstrate the development of course objectives and acceptable skill requirements. The methods of evaluation may include one or more of the following: oral or written examinations, quizzes, written assignments, welding tests, safe work habits, task performance, and work relations.
 

Math
1. Apply math and science concepts to the welding related process

• Measuring with fractions
• Reducing common fractions
• Expressing common fractions in higher terms
• Ability to read a tape measure

2. Science

• SMAW and wire welding with various welding electrodes
• As-Deposited Composition of various welding electrodes
• Mechanical Properties of various welding electrodes
• Operating Range for various welding electrodes
• Fluxes for various welding electrodes
• Impact Toughness of various welding electrodes Weld Metal
• Arc Stability and Slag Removal
• Arc Length for various welding electrodes
• Possibility of Hydrogen-Assisted Cracking with various welding electrodes
• Significance of the Volt-Ampere Curve for SMAW with various welding electrodes
• Duty Cycle Calculation

3. WORKING KNOWLEDGE OF HAND TOOLS
Identify basic hand tools and their uses.

• Framing square
• Plumb bob
• Combination square set.
• Protractor
• Dividers
• Level
• Bevel square
• Center punch
• Scratch awl
• Trammel points

4.WORKING KNOWLEDGE OF LAYOUT TOOLS
Proper use of layout tools

• Dividers
• Trammel points
• Bevel Square
• Center punch
• Scratch Awl
• Steel Tape

5.WORKING KNOWLEDGE OF POWER TOOLS
Identify power tool, use and apply to the job.

• Grinder (Hand Type)
• Drill Motors
• Hand Shear
• Nibbler
• Pneumatic Grinder
• Various fabricating tools
• Ironworker
• Tube Bender

6. DEMONSTRATE SAFE USE OF TOOLS.
Explain use of guards, describe potential problem areas for each tool.

• Inspect tool for worn or broken parts
• Inspect power cord for wear or breaks
• Demonstrate safe use.

7. RIGGING TOOLS, WHAT THERE FOR AND HOW THERE USED.
Show proper application of rigging tools

• Port-a-Powers
• Come-a-Long
• Chain Hoist
• Binder
• Glomer
• Wedges
• Dogs
• Clamps
• Jigs & Saddles

8. KNOWLEDGE OF THE SAFE USE OF RIGGING TOOLS.
Show rigging tools in safe use.

• Show what could be considered un-safe use.
• Check tools for defects before use.
• Check for a safe work area before starting work.

9. ASSEMBLY AND ALLINGMENT WITH BASIC LAYOUT TOOLS.
Know how to use layout tools

• Student will learn basic shapes layout.
• Checking for square with framing square and a tape measure: Squaring a corner,
• Squaring a frame.
• Checking for plumb: Use of a plumb bob, Use of a level.
• Checking alignment: Use of a straight edge, use of a string line.
• Checking for parallel: Use of a tape and string line.
• Finding center of a circle.
• Finding center of a square.
• Finding common angels.
• Transferring drawings to the floor for layout.