• ETA Technology Private Limited

Friction Welding Machines

ETA Technology offers Friction Welding Machines. These machines are used for welding of copper to aluminium for manufacturing the bi-metal cable lugs. In other material combinations, welding of copper to aluminium is very difficult since the oxide layer on the copper cannot be removed by the rubbing action alone. The copper surface is machined to remove all the oxide layers and other impurities just prior to the welding. These machines are of 100 KN capacity (i.e. maximum forge welding force) that can weld cable lugs of diameters up to 30 mm and also can weld three jobs of 20 mm diameter per minute. The spindles of these machines are driven by an AC spindle motor and braking is carried out by line-regenerative braking. The axial load on the job is measured by a load-cell and controlled on a close-loop by a hydraulic servo valve. An industrial computer is used to control the machine and to store all weld data. Graphs are plotted for all important weld parameters (such as axial force, spindle speed, displacement and spindle torque) against time during welding and these are stored for each and every weld. These data?s can be retrieved later if needed. Applications: drills, reamers and taps (HSS to MCS), engine valves, axle housings, propeller shafts, CV joints, pump shafts, piston rods of hydraulic cylinders, etc. The company also offers friction welding machines of capacity ranging from 1-tonne to 200 tonnes.