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Welding HeadSubmerged arc welding head consists of the wire spool, wire feed system, flux delivery hopper and electrical contact nozzle. The electrode wire is unwound from the spool by the power driven rolls, straightened by a set of pressure rolls and fed through the contact nozzle into the weld pool. The drive for wire feed is from a motor with speed control provided either by means of a gear box or by means of thyristor controls.
Advantages of resistance welding 1. Resistance welding is very fast compared to arc welding. 2. Almost any combination of metals can be resistance welded provided necessa
Compute the displacement of the particle: The acceleration time diagram for particle is as specified below .Computed velocity of the particle at several time intervals, plot v
what is meant by hot working @cold working
round reamer diagram
(a) What is the function of fuel feed system? (b) What are the functions of a carburettor? (c) List main components of a carburettor. (d) Describe the working principle of
(a) What are the limitations of Reversed Carnot Cycle to be used in practice for refrigeration purposes? Also derive the mathematical expression of COP for reversed carnot cycle.
DUTY CYCLE RATING Since, arc welding power sources are delivering high currents for welding; the components of such a system are bound to get heated. In order to have increase
mean effective pressure of dual cycle
Pyrolysis Pyrolysis is the procedure of depositing a ceramic on a heated substrate. The process is used to deposit coating or generate thin walled components of graphite or si
Use the graphics and the equation to define the term principal stress and principal planes.
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