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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
open die closed die
Age-hardening of Aluminium Alloys In specific alloys precipitation from a single phase may arise. The precipitate phase might be in form of determine sub-microscopic particles
BASIC PHYSICS
A simply supported beam ABC with supports at A and B , 6m apart and with an overhang BC 2 metres long takes uniformly distributed load of 1.5 KN/metre length over the entair length
Why is the quality of welds produced by submerged arc welding very good#Minimum 100 words accepted#
The Leader Command The Leader command can be used to annotate at any point on a drawing. The command sequence below was used to draw the leader shown in the Figure Below.
Evaluate force and moment: What force and moment is transmitted to supporting wall at A A force of 15 KN is transmitted to wall along with anticlockwise mome
First Law for Closed System Undergoing Change of State - thermodynamics: In accordance to first law, when system undergoes a thermodynamic process (change of state) heat and w
Dead Centre The position of the working piston and the moving parts which are mechanically connected to it, at the moment when the direction of the piston motion is reserved
Takt Time for sand blasting: Tatk time is crucial in manufacturing process. It determines the speed of production to produce a product. Time is money toward prod
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