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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
Forced Air Cooling: A fan makes a difference between natural air cooling and forced air-cooling. The fan supplies the required air to carry away heat from the engine cylinder
A semi elliptical spring has 10 leaves in all, with the two full length leaves extending 625 mm. It is 62.5 mm wide and is prepared by strips 6 mm thick. Prepare a design of helica
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Q. What is IFC in project management? This revision is to be used as a basis for preparing detailed design for final checking of IFC drawings by other disciplines, for incorpo
What is vabretion defects?
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