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SHIELDING GASES
Shielding gas is directed by the torch to the arc and weld pool to protect the electrode and the molten weld metal from atmospheric contamination.
Argon and helium or mixtures of the two are the most common types of inert gas used for the shielding. Argon hydrogen mixtures are used for special applications.
CO2 Welding CO2 Welding is a variation of GMAW. Here the inert gas is replaced by gas mixtures or carbon dioxide, which are chemically active. The carbon dioxide decomposes in
(Rigid body rotation) Derive the equation for the shape of the surface zsurf(rsurf) for a rigid-body rotation of water at angular speed (rad/sec). Follow this process: 1) S
Using Mohr's Circle Method determine the stresses acting on the plan as shown in figure. Also write the procedure.
applications of engineering statics
a beam ABC is simply supported at A and C and caries a couple equal to 100kN applied clockwise at B
General Phase of Radial Drilling Machine Steps- 1. Prepare a strong foundation for the value study. In radial drilling machine hole can not be produce in any angle.
Stea m Turbine: INTRODUCTIO N: Steam turbine is chief mover in which rotary motion can be obtained by a gradual change of momentum of steam. The force exerted on blade is
a) Define Economics Order Quantity. Derive, using neat diagram, the mathematical formula for economic order quantity. b) The purchase manager of an industrial unit is placing on
Degre e of Super Heat: It is difference between the temperature of superheated steam and saturation temperature resultant to the given pressure. So, the degree of superhea
Determine the distance of application of the load: A rigid bar of negligible weight transmits a load W to a combination of 3 springs as illustrated in Figure. The three spring
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