Portland Community College | Portland, Oregon

This is an outcome based course utilizing a lecture/lab format.  This course includes classroom discussions, video tapes, and lab demonstrations covering technical skills. Course outcomes will include;  theoretical concepts, layout, fabrication, welding, oxyfuel cutting, safety, environmental awareness, communication, computations and human relations.

• Function safely in the PCC Welding Lab
• Demonstrate professional work ethics (habits).
• Apply related math and science concepts
• Interpret drawings and symbols, accurately layout a project, prepare and assemble projects to specified tolerances.
• Weld open root groove joints on 3/8 mild steel plates in the horizontal, vertical and overhead positions in accordance with ASME Section IX.

The student will be assessed on his/her ability to demonstrate the development of course outcomes. The methods of assessment may include one or more of the following: oral or written examinations, quizzes, written assignments, visual inspection techniques, welding tests, safe work habits, task performance, and work relations.

Function safely in the PCC Welding Lab.

• Students will understand and practice personal safety by using proper protective gear.
• Students will understand and practice hand and power tool safety.
• Students will understand and practice equipment safety.
• Students will understand and maintain a safe work area.
• Maintain a clean and clutterfree floor
• Recognize and report dangerous electrical and air/gas hose connections
• Understand and practice fire prevention
• Access and explain the importance of Material Safety Data Sheets (MSDS)

Demonstrate professional work ethics (habits).

• Track training hours on time card
• Perform projects in accordance with specifications and procedures.
• Follow directions in a positive manner.
• Manage time productively.
• Respect equipment and others.
• Demonstrate skill in problem solving and decision making.

Apply related math and science concepts

• Explain calculating of joint preparation tolerances
• Explain the benefits and characteristics of Low-Hydrogen electrodes for Welding of Steel Pipe
• Identify the composition of the ER70S-6 Filler Metal for GTAW

Interpret drawings and symbols to accurately layout , prepare and assemble weld joints. 

• Interpret lines, symbols and verbiage on project drawings
• Prepare and layout material per specification
• Assemble weld project per specification.
• Discuss agencies governing pipe
• Discuss the general acceptance criteria of welded pipe
• Recognize pipe sizes and schedules
• Identify pipe welding positions
• Discuss advantages of GTAW of pipe
• Prepare 6 inch diameter pipe using the oxy-acetylene pipe beveler

Weld open root groove joints on plate in the horizontal, vertical and over head positions. Weld 6 inch schedule 40 pipe in the horizontal position. 

Introduction to GTAW pipe

Pipe welding practice

• Assemble and weld 6 inch pipe in the 2G position using GTAW and S.M.A.W. processes.
• Demonstrate correct welding techniques
• Follow welding procedure
• Demonstrate visual examination principles in accordance with ASME Section IX.