The Welding Technology course provides students with an understanding of manufacturing processes and systems common to careers in welding and related industries. Topics include the interpretation and layout of welded and assembled-parts, reading blueprints and understanding welding symbols. Further topics included are the common welding processes found in industry, metal charcteristics and finishing processes dealing with welded parts and projects.From CALPADS: Intermediate Welding and Materials Joining (Concentrator)
This concentrator course builds upon the Manufacturing and Product Development introduction course and provides students with additional concepts and experiences required for career readiness and pursuing further education in Welding and Materials Joining career pathway, which precedes this pathway's capstone course. This concentrator course leads to the capstone course in the Welding and Materials Joining pathway's sequence of courses.
|Occupation Name||Occupation Code|
|Welders, Cutters, Solderers, and Brazers||51-4121.00|
|Welding, Soldering, and Brazing Machine Setters, Operators, and Tenders||51-4122.00|
|Welders, Cutters, and Welder Fitters||51-4121.06|
This unit will address lab safety and safe operating procedures necessary for students to complete their required and open projects in a high school welding facility. Students will be instructed on safe environments as well as safely storing and moving equipment, shielding gasses and storing fluids in a safe manner.
Students will understand how to make effective decisions, use career information and manage personal career plans.
This unit will introduce the welding student to various welding systems; the advantages and disadvantages when comparing the many welding systems and the tools involved in each sysytem. Safety will be stressed when ever a new system is introduced. Inspection devises for weld quality may be introduced in this unit.
This unit will address the safe use of the many welding tools available to the welding student in a high school welding facility. In this case tools are defined as any device the student can place in their hands to insure proper weld quality.
This unit will introduce students to basic metalurgy. The properties found in the many metals one welds in the high school welding facility. The unit will further discuss the procedures used to indentify metals in the lab setting.
This unit will address how measurement is used in the welding lab. How to measure and the units of measurement.
This unit introduces the welding student to planning procedures including reading a working drwing, selecting materials and procedural steps. The unit also requires the student to transfer a drawing to a piece of metal during the layout procedure using basic layout tools.
This unit addresses the elements of a blueprint and the basic steps on how to read blueprints. Students will become familiar with welding blueprints which consist of drawings and welding symbols. Students will learn how to read and apply to practical projects.
This unit will encompass the types of quality control systems and why quality control is essential to the production process. Students will examine and experience final production quality control and on line quality control systems.
This unit includes the processes and techniques used to grind and finish metal in the shop environment. The identification and proper,safe, uses of finishing materials and machines will be emphasized.
This unit includes the safe and proper use of a manual plasma cutting machine. The identification of the machine and its basic parts along with the when the machine should be used will be discussed.
This unit is designed to teach students the basics of operating an automated "PlasmaCam" program. The student will learn basic computer software programs and be able to draw on the plasma program and cut out a project.
This unit includes lessons about fitting and jigging, welding positions and joints.
Oxy-fuel welding (commonly called oxyacetylene welding, oxy welding, or gas welding in the U.S.) and oxy-fuel cutting are processes that use fuel gases and oxygen to weld and cut metals, respectively. In oxy-fuel welding, a welding torch is used to weld metals. Welding metal results when two pieces are heated to a temperature that produces a shared pool of molten metal. The molten pool is generally supplied with additional metal called filler. Filler material depends upon the metals to be welded. In oxy-fuel cutting, a cutting torch is used to heat metal to kindling temperature. A stream of oxygen then trained on the metal combines with the metal which then flows out of the cut (kerf) as an oxide slag
This unit includes lessons on the process of selecting the proper materials to weld and what welding operation is the best choice. The student will use various tools and welding equipment to complete the required welding exercises included in this unit.
This unit will include lessons on the importance weld assembly and the proper use of tools that insure correct joint preparation. Also, included will be how to select the proper weld process for the weld asembly involved.
The Shielded Metal Arc Welding process (SMAW), commonly referred to as stick welding, derives the heat for welding from an electric arc established between a consumable stick electrode and the part to be welded. The stick electrode is clamped in an electrode holder which is connected to the stick welder by a power cable. The current produced by the stick welder for welding can AC or DC, depending on the model.
The unit on FCAW includes the identification of the welding machine and parts along with the safe and proper use of the machine in the lab environment. Lessons will include the use of the machine to weld test coupons and construct welded projects.
Gas-Metal-Arc Welding (GMAW) evolved from CAW when it was realized that a consumable electrode - eliminating any need for a welding rod, could replace the carbon electrode. To reduce oxidation, the electrode wire is coated with materials such as fluorides, oxides, carbonates, metal alloys, and binders to stabilize the arc, to produce gases to shield the weld from oxygen and atmospheric contaminants, and to introduce metal alloy to weld. GMAW is used principally with nickel and ferrous base metals
|Gas Tungsten Arc
Welding (GTAW) is frequently referred to as TIG welding. TIG
welding is a commonly used high quality welding process. TIG
welding has become a popular choice of welding processes when high
quality, precision welding is required.
In TIG welding an arc is formed between a nonconsumable tungsten electrode and the metal being welded. Gas is fed through the torch to shield the electrode and molten weld pool. If filler wire is used, it is added to the weld pool separately.
This unit contains lessons for first and second year student projects.
This unit contains lessons for third/fourth yr student projects