Welding is the most common way of permanently joining metal parts. Heat is applied to the pieces to be joined, melting and fusing them to form a permanent bond. Because of its strength, welding is used to construct and repair parts of ships, automobiles, spacecraft, and thousands of other manufactured products. Welding is used to join beams and steel reinforcing rods when constructing buildings, bridges, and other structures, and also in utilities such as nuclear power plants.
Welding program students advance through each semester in a cohort group, or may choose single process classes. Learning modules progressively build on what has been accomplished in exercises, practical assignments and exams. Students in the morning cohort group must take 442-307 and 442-308 together during the fall semester, and 442-310 and 442-312 together during the spring semester as part of their learning group. Students in the afternoon, evening or Saturday sessions may elect to take one or more process classes.
Welders may perform manual welding, in which the work is entirely controlled by the welder, or semi-automatic welding, in which the welder uses machinery, such as a wire feeder, to perform welding tasks.
Welders develop those manipulative skills, which are necessary to the welding of joints common to all metal industries. They understand and apply the proper theories of welding, cleaning and fabrication to appropriate shop applications. Welders know how to read blueprints, utilize the necessary tools, and perform the mathematical functions essential to the completion of a project. Welders follow and apply safety practices and procedures as they relate to industrial situations. They are able to understand and communicate technical information related to the profession.
Graduates of the program can expect to be proficient in welding structural steel, aluminum, stainless steel and other metals. They will develop the ability of blueprint reading, sketching, and layout for welding. Major job skills learned will include: Oxygen-Fuel Cutting (OFC), Plasma Arc Cutting (PAC), Shielded Metal Arc Welding (SMAW), Gas Metal Arc Welding (GMAW), Flux Core Arc Welding (FCAW), Metal Core Arc Welding (MCAW), and Gas Tungsten Arc Welding (GTAW).
This video covers the teardown of a Bosch PFR type Zexel injection pump. I recently pulled these damaged units from the Isuzu LD1 engine in my IHI mini excavator. The video shows each of the components in the injection pump and how it works. I’ve included some good photos of the worn parts in at the end, and remember to always have a working fuel filter on your diesel engines!!!