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EQUIPMENT FOR RESISTANCE WELDING
The equipment for resistance welding is different from that for arc welding for the following reasons: Resistance welding machines are complicated and very costly. Automation and controls are more in these. Many resistance welding equipments are custom - built. The machines can be operated with single phase or three phase mains. The equipment may be direct energy or stored energy machines. All the resistance welding machines require a low voltage, high current output (current in the order of thousand to lakhs of amperes). Four main constituents are:1. Electrical Power source2. Mechanical system3. Control equipment4. Feeding system
LIMITATIONS OF GAS TUNGSTEN ARC WELDING (GTAW) It Produces lower deposition rates than consumable electrode arc welding processes. It Requires slightly more skill as comp
Conveyor and auger Two Hydraulic motors are provided for individual control of two conveyors and Auger, which are provided for individual control of material on both the sides
Determine the number of cycles - crack propagation: The plate of above Example contained a crack of 50 mm length in the centre before it was subjected to cyclic stress. Deter
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a) Consider a brake of your choice and Illustrate self locking and self energizing condition & its significance in brakes design. b) Discuss thermal condition in brake design.
You are required, as part of a small team, to design a remote controlled buggy that can be made to move forwards, backwards and from side to side. The basic buggy and motors are pr
(a) Show that two statements of Second Law of thermodynamics are similar to each other. (b) A house that was heated by electric resistance heater consumed 1200 KWh of electric e
MATERIALS WELDABILITY Electron beam welding has the ability to weld a variety of materials including dissimilar combinations. These can be split into general categories as to t
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Example of simple exponential smoothing: A TV manufacturer utilizes simple exponential smoothing with α = 0.1 to forecast demand. For the first week of March, the forecast was
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