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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
Homogeneous and isotropic material: A homogeneous material implies that elastic properties like modulus of elasticity and Poisson's ratio of material are same everywhere in
consider the following LPP max z=9x1+8x2+5x3 subject to 2x1+3x2+x3 5x1+4x2+3x3 x1,x2,x3>_0 (a)solve using simlex method (b)hence using the sesitivity analysis,find the new optima
Importance of angle of twist: Q: What is the importance of angle of twist? From relation T / J = G. θ / L ; we have θ= T . L / G . J As G , L , J
Are the types of pumps selected (base mounted, in-line)? Locate pump on discharge side of boiler. Flexible connector used. Valving indicated, isolation valve on suction and dis
procedure to draw velocity and acceleration diagram using relative velocity method
EFFECT OF PROCESS PARAMETERS High voltage gives high velocities in the electron beams. The mutual repulsion effects in the constituent electrons will be less marked at high vel
Find the Maximum Allowable Size of the Milling Cutter Find the maximum allowable size of the milling cutter if it is to rotate at 65 rpm while the cutting speed is 20 m/min.
Determine forces in members of cantilever truss: Determine forces in members B C and BD of cantilever truss shown in the figure in the figure given below.
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as diesel engine gives more milege than petrol engine then why we are using petrol engine..
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