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A portable spot welder. Spot welding (or resistance spot welding [1]) is a type of electric resistance welding used to weld various sheet metal products, through a process in which contacting metal surface points are joined by the heat obtained from resistance to electric current.
Welding (cast iron) AWS D14.1: Industrial mill crane welding AWS D14.3: Earthmoving & agricultural equipment welding AWS D14.4: Machinery joint welding AWS D14.5: Press welding AWS D14.6: Rotating Elements of Equipment AWS D14.9 Specification for the Welding of Hydraulic Cylinders AWS D15.1: Railroad welding AWS D15.2: Railroad welding practice ...
Friction stir welding and its variants – friction stir spot welding and friction stir processing – are used for the following industrial applications: [43] shipbuilding and offshore, [44] aerospace, [45] [46] automotive, [47] rolling stock for railways, [48] [49] general fabrication, [50] robotics, and computers.
This page was last edited on 13 March 2006, at 21:16 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
Spot welder. Resistance spot welding is a popular method used to join overlapping metal sheets of up to 3 mm thick. [52] Two electrodes are simultaneously used to clamp the metal sheets together and to pass current through the sheets.
Like electron-beam welding (EBW), laser beam welding has high power density (on the order of 1 MW/cm 2) resulting in small heat-affected zones and high heating and cooling rates. The spot size of the laser can vary between 0.2 mm and 13 mm, though only smaller sizes are used for welding.
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