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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.
Find out the magnitude of the force to keep equilibrium: Th e lever ABC of a component of machine is hinged at point B , and is subjected to a system of coplanar forces.
Wire Feed System The submerged arc welding machine of the wire feed control may be of the following types: 1. Voltage sensitive system 2. Constant wire feed The voltage sensiti
Calculate the Spindle Speed in Milling Operation Calculate the spindle speed (N) if a copper job is to be milled by (a) stellite cutter (b) cemented carbide cutter.
Heat Treatment of Cast Iron: Castings in iron are frequently heat treated for enhancing mechanical properties and microstructure. The treatments known to cast iron are explai
Material Utilized For Composites Composite presents a very broad range. From usual reinforced concrete to metal- metal fibre composites of high strength are in employ. The stre
example on operation sheet?
what is the positive opportunities for this major
State the scope of thermodynamics in thermal engineering. Thermal engineering is a very significant associate branch of mechanical, chemical, environmental, aerospace, marine,
Describe motion in two dimension?
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