Course Syllabus

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 WLDG-1430 Introduction to Gas Metal Arc Welding (GMAW)

TARRANT COUNTY COLLEGE DISTRICT MASTER SYLLABUS

COURSE DESCRIPTION

Principles of gas metal arc welding, setup and use of Gas Metal Arc Welding (GMAW) equipment, and safe use of tools/equipment. Instruction in various joint designs.

COURSE TYPE

Technical

COURSE GOALS AND LEARNING OUTCOMES

End-of-Course Outcomes: Describe welding positions with various joint designs; describe the effects of welding parameters in GMAW; apply safety rules; troubleshoot equipment used, perform visual inspection; weld various types of structural material; diagnose welding problems.

Learning outcomes are linked to SCANS requirements. Specific SCANS requirements are linked to the class schedule.

Upon successful completion of this course, students will:

  1. Demonstrate safety in the welding station by a. describing burns caused by the welding arc (1a, 1b, 2a, 2e);
  2. demonstrating operation of welding equipment safety (1a, 1b, 2e);
  3. describing proper clothing for welding safety (1a, 1b, 2a).

 

  1. Choose correct filler electrodes by a. identifying filler metal electrodes to AWS filler metal number system (1a, 1b, 2a, 2e);
  2. demonstrating selection of electrode size for 5 types of welded joints and metal thickness (1a, 1b, 2a, 2d, 2e).

 

  1. Demonstrate the ability to set up and apply the theory of an oxygen/acetylene cutting system by a. performing safety inspection of manual OFC equipment and accessories (1a, 1b, 2a, 2d, 2e);
  2. explaining types of regulators (1a, 1b, 2a, 2e);
  3. demonstrating safe method of handling and storing cylinders (1a, 1b, 2a, 2e);
  4. explaining selection of cutting tips sizes (1a, 1b, 2e);
  5. demonstrating setup and manual cutting of straight and bevel edges (1a, 1b, 2a, 2c, 2e);
  6. making minor external repairs to mechanized OFC equipment and accessories (1a, 1b, 2a, 2e);

 

 

 

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  1. demonstrating bevel cutting of pipe with pipe beveling machine (1a, 1b, 2a).

 

  1. Demonstrate an understanding of the proper setup of a GMAW welding station by a. performing safety inspection of GMAW equipment and accessories (1a, 1b, 2e);
  2. explaining CV welding voltage (1a, 1b, 2e);
  3. selecting correct wire speed for GMAW welding (1a, 1b, 2e);
  4. demonstrating correct electrode stick out (1a, 1b, 2d, 2e).

 

  1. Perform fillet and v-groove welded joints with the GMAW process by a. passing welder qualification tests in the 2F, 3F, and 4F position on 16 gauge to 3/16” steel (1a, 1b, 1c, 2a, 2b, 2c, 2d, 2e);
  2. passing welder performance qualification tests in the 2G, 3G, and 4G position on carbon steel plate (1a, 1b, 1c, 2a, 2b, 2c, 2d, 2e).

 

  1. Demonstrate an understanding of spray arc transfer by a. demonstrating skills using spray arc transfer in the 1G position (1a, 1b, 2d, 2e);
  2. listing the GMA processes’ major limitations (1a, 1b, 2d, 2e);
  3. explaining shielding gases used in short circuiting transfer and spray transfer (1a, 1b, 2d, 2e).

 

  1. Demonstrate an understanding of types of preheat and post heat by a. identifying preheat (1a, 1b, 2e);
  2. identifying inter-pass temperature (1a, 1b, 2e);
  3. identifying post weld heat treatments (1a, 1b, 2e);
  4. identifying hold points (1a, 1b).

 

  1. Demonstrate an understanding of the cause of hydrogen found in welds by a. identifying causes of hydrogen formation in welds (1a, 1b, 2a, 2c, 2e);
  2. identifying types of hydrogen formation in welded joints (1a, 1b, 2c).

 

 

COURSE ASSESSMENT

Student success is measured by a variety of assessment techniques aligned with course goals and learning outcomes. Individual faculty members are responsible for designing evaluation instruments to measure student mastery of course goals and learning outcomes and indicating the nature of such evaluation instruments in the instructor’s class requirements.

STUDENT ACCESSIBILITY RESOURCES

Any student with a documented disability needing academic accommodations is required to contact the Student Accessibility Resources (SAR) Office located on each campus to schedule an appointment with the Coordinator of SAR. All discussions are confidential. Because SAR accommodations may require early planning and are not

 

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provided retroactively, students are encouraged to contact SAR as early in the semester as possible. SAR is responsible for approving and coordinating all disability-related services. TCC professors will honor requests for accommodation when they are issued by SAR.

SCHOLASTIC DISHONESTY

Students are responsible for adhering to the TCCD policy on scholastic dishonesty as stated in the online student handbook at www.tccd.edu.

RESOURCES

For additional information regarding the student handbook, academic calendar, course evaluations, attendance policy, SCANS skills, Core Competencies, etc., see www.tccd.edu.

 

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Course Summary:

Date Details Due