- Course Number:
- WLD 131
- Course Title:
- Gas Metal Arc Welding
- Credit Hours:
- Lecture Hours:
- Lecture/Lab Hours:
- Lab Hours:
- Special Fee:
Course DescriptionDevelops knowledge and manipulative skills welding with solid wire on ferrous and non-ferrous materials using short arc in the flat, horizontal, vertical and overhead positions. Department permission required. Audit available.
Intended Outcomes for the course
Upon successful completion of this course, the student will have satisfactorily accomplished the goals and objectives listed in this Course Content Guide. The course content Guides are developed by college wide subject area faculty and approved by management.
Course Activities and Design
This is a competency-based course utilizing a lecture/lab format. This course includes classroom discussions, video tapes, and lab demonstrations covering technical skills. Course competencies will include the following: theoretical concepts, layout, fabrication, welding, oxyfuel cutting, safety and environmental awareness, communication, applied Math and Science and human relations.
COMMENTS ON COURSE ACTIVITIES AND DESIGN:
The student will fabricate and weld projects in the shop. Discussions and demonstrations with the instructor will aid the student in acquiring knowledge and skills in Gas Metal Arc Welding procedures and in interpreting as well as executing instructions, both visual and written.
Outcome Assessment Strategies
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 competencies. 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.
Students will be evaluated on their ability to complete welding projects to the quality standards of the welding industry.
Course Content (Themes, Concepts, Issues and Skills)
EXPECTED STUDENT COMPETENCIES
SAFETY AND ENVIRONMENTAL AWARENESS COMPETENCIES:
Students will understand and practice personal safety
- Understand the importance of personal health and fitness
- Use proper protective gear
- Understand situation awareness
- Use correct manual lifting techniques
Students will understand and practice tool safety
- Use hand tools safely
- Use power tools safely
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
- SMAW with E7024 Electrode
- As-Deposited Composition of E7024
- Mechanical Properties of E7024
- Operating Range for E7024
- Fluxes for E7024 Electrode
- Impact Toughness of E7024 Weld Metal
- Arc Stability and Slag Removal
- Arc Length for E7024
- Possibility of Hydrogen-Assisted Cracking with E7024
- Significance of the Volt-Ampere Curve for SMAW with E7024
- Iron Powder Addition to E7024
- Duty Cycle Calculation
Students will understand and practice equipment safety
- Demonstrate safety procedures required in the use of welding machines and cutting systems.
Students will understand and maintain a safe work area.
- Maintain a clean and clutter-free floor
- Understand the importance of adequate lighting
- Recognize objects that might fall
- Recognize and report dangerous electrical and air/gas hose connections
- Understand the importance of space management in regards to safety
- Understand and practice fire prevention
Students will understand aspects of the welding industry that effect the environment (environmental awareness)
- Identify hazardous materials
- Identify the purpose of a Material Safety Data Sheets (MSDS) and where MSDS sheets are kept.
- Understand the effects of hazardous materials and welding fumes on the atmosphere
- Understand correct procedures when working in or around containers or vessels
PRINCIPLES OF THE GAS METAL ARC WELDING PROCESS:
The goal is to develop knowledge and skill in the principles of the Gas Metal Arc Welding process.
- Use the proper terminology
- Define all terms commonly used in this process
Use the following variables to achieve desired results.
- Welding voltage
- Welding current
- Travel rate
- Gun angle
- Contact tip-to-work distance
Demonstrate the proper use of the following welding equipment.
- Power source
- Electrode speed control
- Wire conduit
Welding SpecificationsUtilize the following to meet welding specifications
- Written specifications
- Welded profiles
- Techniques and schematics
OPERATION AND MAINTENANCE PROCEDURES:
The goal is to develop knowledge and skill in the operation and maintenance procedures of Gas metal Arc Welding.
- Use appropriate procedures for start-up, operation, and shut down of equipment.
- Remove and replace wire spool.
GAS METAL ARC WELDING:
The goal is to develop knowledge and skill in Gas Metal Arc Welding.
Given a schematic diagram with welding directions, perform Gas Metal Arc Welding in the following positions.
Student will develop team work skills
- Work constructively in teams
- Share equal responsibilities and duties within a team
- Develop team tactics in problem solving
Student will learn how to interact with co-workers in compliance with the norms set by industry
- Work constructively with a partner and exhibit cooperation and allow for full participation
- Resolve conflicts that may arise in a professional manner
Student will learn how to interact with supervisors in compliance with the norms set by industry
- Follow the instructor's directions in a positive manner
- Relay relative information back to instructor for further direction
PERSONAL MANAGEMENT SKILLS
Student will utilize time productively (Time Management)
- Track training time on time cards
- Complete a task within a given amount of time
- Allocate time to complete all assignments
- Be prepared for class
- Be personally responsible for attendance
Student will maintain clean and orderly work stations and shop area
- Keep assigned station clean and clutter free
- Participate in general shop clean-up
- Inspect classroom and lab area for cleanliness
- Keep tools and equipment clean
Student will demonstrate pride in workmanship (Professionalism)
- Perform projects in accordance to industry specifications and procedures
- Use all tools and equipment correctly
- Use the proper cleaning procedures
Student will develop a working knowledge of the vocabulary used in the welding industry
- Demonstrate spelling skills with emphasis on the industry vocabulary
- Use correct vocabulary terms
Student will develop technical writing skills
- Prepare technical reports
Student will develop verbal communications skills
- Participate in classroom discussions
- Explain the function of welding machine
- Formulate questions