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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
Two concentric perforared plates are seperated by a 200mm launder and form the flow exit for a clarifier (figure 1). The inlet water flow of 1200 mcubed/hour into the clarifier is
why 4R kinematic chain do not form different mechanisms?
Compute the diameter of a solid shaft: Compute the diameter of a solid shaft transmitting 150 kW at 25 rpm, if the maximum shear stress in the shaft is not to exceed 70 MPa. C
Thin wall tube has diameter of 60mm. The end of it will be compressed to square form. Calculate how many percents torsion strength will becomne lower at the end of tube?
Find out the amount of energy spent: 6 cubic metre of water is to be lifted to a height of 40 metres and delivered having velocity of 4 metres/sec. If this operation takes 12
Corollaries of first law of thermodynamics
Q. What is the basic working of Cooling Tower? Cooling towers are generally located downwind from process units to adequately disperse vapors (from exchanger leaks) and minimiz
Example of Process Capability The specifications for one characteristic of a part call for its width to be 3.000 + 0.008 centimetres. The procedure has been run under controll
Classification Based on Mode of Welding Manual welding: In this welding the entire welding operation is performed and controlled by hand. Here, there are two movements involv
Applications of capp
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