![occupational outlook handbook occupational outlook handbook](https://1.bp.blogspot.com/-tS230U36fXY/Xt6Nb2IypYI/AAAAAAAAAJA/u4RiyXP9OVw0o8xFG2J_Kt5QHhXLyhXfACLcBGAsYHQ/s1600/Screen%2BShot%2B2020-06-08%2Bat%2B3.10.34%2BPM.png)
Two common but advanced types of welding are Gas Tungsten Arc (TIG) and Gas Metal Arc (MIG) welding. Variations in speed can change the amount of flux applied, weakening the weld, or weakening the surrounding metal by increasing heat exposure. During welding, the flux that surrounds the rod’s core vaporizes, forming an inert gas that serves to protect the weld from atmospheric elements that might weaken it.
![occupational outlook handbook occupational outlook handbook](https://i5.walmartimages.com/asr/801298f3-c3bf-4e38-9d82-419c082ec728_1.1b74d4cf2c34316cefc8627f010d14f5.jpeg)
The massive heat created by the electrical current causes both the workpiece and the steel core of the rod to melt together, cooling quickly to form a solid bond. When the rod touches the workpiece, a powerful electrical circuit is created. The second clip is connected to a thin welding rod. One clip is attached to any part of the workpiece being welded. Standard arc welding involves two large metal alligator clips that carry a strong electrical current.
#Occupational outlook handbook manual
They may perform manual welding, in which the work is entirely controlled by the welder, or semiautomatic welding, in which the welder uses machinery, such as a wire feeder, to perform welding tasks.Īrc welding is the most common type of welding. Welders use many types of welding equipment set up in a variety of positions, such as flat, vertical, horizontal, and overhead. Welding also is used to join beams when constructing buildings, bridges, and other structures, and to join pipes in pipelines, power plants, and refineries. Because of its strength, welding is used in shipbuilding, automobile manufacturing and repair, aerospace applications, and thousands of other manufacturing activities. In this process, heat is applied to metal pieces, melting and fusing them to form a permanent bond. Welding is the most common way of permanently joining metal parts.
#Occupational outlook handbook trial
![occupational outlook handbook occupational outlook handbook](http://www.careerbookstore.com/v/vspfiles/images/ooh.gif)
Dressing for success and other welding safety tips.Commonly Asked Questions About Welding Helmets and Eye Protection.Ten Steps to Reducing Your Welding Costs.Occupational Outlook Handbook, 2004-05 Edition.Welding and Farming – The Two Go Hand-In-Hand.Arc-Welding Fundamentals The Lincoln Electric Company, 1994.