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How exactly does one orchestrate the movements of a welding robot arm, welding torch, and positioner? What about adjusting wire feeders, power sources and inputting multiple welding commands? With RobotWorx' free customer training, welding robot programming doesn't have to remain a mystery. We offer one-on-one training to all our robotic welding system customers.
Shielded metal arc welding uses a metallic consumable electrode for generating an arc between itself and the workpiece. The molten electrode metal fills the weld gap and joins the workpieces. SMAW is one of the most popular welding processes that produces a variety of welds, and is used frequently in the maintenance and repair industry, and in the construction of steel structures and industrial fabrication.
Plasma arc welding was heralded in the welding industry as a process to bring better control to arc welding in lower current ranges. It provides an advanced level of control and accuracy to produce high quality welds in precise applications, and provides long electrode life. Plasma arc welding has been used in a wide range of operations, from welding surgical instruments to automatic repair of jet engine blades.
Submerged arc welding, or underwater welding, is a common arc welding process in which the molten weld and arc zone are protected from atmospheric contamination by being submerged under a blanket of granular fusible flux. This flux consists of lime, silica, manganese oxide, calcium fluoride, and other compounds. The flux becomes conductive when molten and provides a current path between the electrode and the workpiece.
Twenty years ago, a welder never would have believed that he could weld a piece of aluminum to a piece of steel without corrosion. Now, however, the automotive industry is doing just that due to innovations in the welding industry. Inverter technology has produced one of the most significant trends, especially in gas metal arc welding. The traditional power supply for arc welding relies on an electrical transformer-rectifier system to create the welding arc.
Plasma arc welding is a hybrid method of GTAW. Both methods use a tungsten electrode, but the PAW torch produces a highly focused, strong arc. Beginning the arc sequence requires two power supplies: a pilot supply connected between the electrode and nozzle, and another to provide the current between the electrode and workpiece. The arc produced is stiff and provides directional stability.
Welding aluminum with the GMAW technique requires proper attention to cleaning the base material and removing any aluminum oxide contamination from oils or cutting solvents. Aluminum oxide on the surface of the material melts at 3700 F while the base material underneath melts at 1200 F. Oxide removal should be performed with a stainless wire brush after degreasing. To avoid weld cracking, the user might want to preheat the aluminum workpiece (not to exceed 230 F).
Gas Metal Arc Welding (GMAW) is a process in which an electric arc forms between an electrode and a workpiece metal, causing the metal to melt and join. A shielding gas feeds through the welding gun, shielding the process from contaminants in the air like nitrogen and oxygen. Most GMAW applications use a constant voltage power supply.
Arc welding robots provide several benefits to a company, such as improved weld consistency, decreased cycle times, decreasing risks to workers, and enhanced efficiency. The arc welding robot applies intense heat to metal at a joint by utilizing an electric arc between an electrode and a metal base. Motoman is the world leader in arc welding robotics, patenting multiple robot control and MA-series robots.
Using a laser tracker can improve accuracy of industrial robots. ABB is a trendsetter when it comes to using laser-based measuring technology to ensure robot precision. In partnership with Leica Geosystems, ABB developed a calibration method that offers customers exact robot positioning accuracy throughout the entire life cycle of their robots. ABB’s Absolute Accuracy calibration method turns a standard robot into an exact robot.
Modern laser welding technology leads to differences in the geometrical and mechanical properties of welded joints when compared to conventionally welded joints. The fatigue resistance of laser-welded joints is important. Joints that are laser welded produced mechanical properties within the joint that vary strongly, affecting both strains and notch stresses.