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The equipment used in the spot welding process consists of tool holders and electrodes. The tool holders function as a mechanism to hold the electrodes firmly in place and also support optional water hoses that cool the electrodes during welding. Tool holding methods include a paddle-type, light duty, universal, and regular offset.
Two pointed electrodes apply pressure and current to two or more thin workpieces. Automobile industry, Aerospace industry. Resistance seam welding [6] 22. RSEW. Two wheel-shaped electrodes roll along workpieces, applying pressure and current. Aerospace industry, steel drums, tubing. Projection welding. 23.
Shielded metal arc welding. Shielded metal arc welding (SMAW), also known as manual metal arc welding (MMA or MMAW), flux shielded arc welding[1] or informally as stick welding, is a manual arc welding process that uses a consumable electrode covered with a flux to lay the weld. An electric current, in the form of either alternating current or ...
For the play, see Welded (play). Overhead stick welding. Welding is a fabrication process that joins materials, usually metals or thermoplastics, primarily by using high temperature to melt the parts together and allow them to cool, causing fusion. Common alternative methods include solvent welding (of thermoplastics) using chemicals to melt ...
Process description. In friction stir spot welding, individual spot welds are created by pressing a rotating tool with high force onto the top surface of two sheets that overlap each other in the lap joint. The frictional heat and the high pressure plastify the workpiece material, so that the tip of the pin plunges into the joint area between ...
A robust robotic arc welding fixture is a part-holding tool used to constrain components for welding in an automated system. [15] Welding fixtures locate parts using these clamps to secure important aspects of the subcomponent, such as holes, slots, or datum surfaces. Careful considerations must be made when designing welding fixtures.
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