Welding (WEL) at Northern Virginia Community College


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WEL 116 - Welding I (Oxyacetylene)
Teaches oxygen/acetylene welding and cutting including safety of equipment, welding, brazing and soldering procedures and cutting procedures.
Lecture 1 hour. Laboratory 3 hours. Total 4 hours per week.
2 credits
WEL 120 - Introduction to Welding
Introduces history of welding processes. Covers types of equipment, and assembly of units. Stresses welding procedures such as fusion, non-fusion, and cutting oxyacetylene. Introduces arc welding and plasma arc cutting. Emphasizes procedures in the use of tools and equipment.
Lecture 1-2 hours. Laboratory 2-3 hours. Total 3-5 hours per week.
2-3 credits
View WEL 120 Course Content Summary
WEL 121 - Arc Welding
Studies the operation of AC and DC power sources, weld heat, polarities, and electrodes for use in joining various alloys by the SMAW process. Covers welds in different types of joints and different welding positions. Emphasizes safety procedures.
Lecture 1 hour. Laboratory 3 hours. Total 4 hours per week.
2 credits
WEL 122 - Welding II (Electric Arc)
Teaches electric arc welding, including types of equipment, selection of electrodes, safety equipment and procedures, and principles and practices of welding.
Lecture 1-2 hours. Laboratory 3 hours. Total 4-5 hours per week.
2-3 credits
WEL 126 - Pipe Welding I
Teaches metal arc welding processes including the welding of pressure piping in the horizontal, vertical, and horizontal-fixed positions in accordance with section IX of the ASME code.
Lecture 2-3 hours. Laboratory 3 hours. Total 5-6 hours per week.
3-4 credits
WEL 127 - Pipe Welding II
Provides practice in the welding of pressure piping in the horizontal, vertical, and fixed positions.
Laboratory 9 hours per week.
3 credits
WEL 130 - Inert Gas Welding
Introduces practical operations in the uses of inert-gas- shield arc welding. Discusses equipment, safety operations, welding practice in the various positions, process applications, and manual and semi-automatic welding.
Lecture 2 hours. Laboratory 3-6 hours. Total 5-8 hours per week.
3-4 credits
WEL 141 - Welder Qualification Tests I
Studies techniques and practices of testing welded joints through destructive and non-destructive testing. Part I of II.
Lecture 2 hours. Laboratory 3-6 hours. Total 5-8 hours per week.
3-4 credits
WEL 142 - Welder Qualification Tests II
Studies techniques and practices of testing welded joints through destructive and non-destructive testing. Part II of II.
Lecture 2 hours. Laboratory 3-6 hours. Total 5-8 hours per week.
3-4 credits
WEL 145 - Welding Metallurgy
Studies steel classifications, heat treatment procedures, properties of ferrous and non-ferrous metals. Discusses techniques and practices of testing welded joints and destructive/nondestructive, visual magnetic and fluorescent testing.
Lecture 2-3 hours. Laboratory 1-2 hours. Total 3-5 hours per week.
3-4 credits
WEL 146 - Welding Quality Control
Teaches techniques and practices of inspection, and interpretation of tests and measurements. Includes radiographic tests of joints of unlimited thickness welded in 3G and 4G positions.
Lecture 2 hours. Laboratory 3 hours. Total 5 hours per week.
3 credits
WEL 150 - Welding Drawing and Interpretation
Teaches fundamentals required for successful drafting as applied to the welding industry. Includes blueprint reading, geometric principles of drafting and freehand sketching, basic principles of orthographic projection, preparation of drawings and interpretation of symbols.
Lecture 2-3 hours per week.
2-3 credits
WEL 160 - Gas Metal Arc Welding
Introduces semi-automatic welding processes with emphasis on practical application. Includes the study of filler wires, fluxes, and gases.
Lecture 2 hours. Laboratory 3-6 hours. Total 5-8 hours per week.
3-4 credits