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Spot welding of different metals-Low carbon steel
Normally, mild steel can be spot welded from the thinnest gauges to a maximum of two pieces of 12 mm thickness. The restriction on the upper side is derived from the fact that with heavier material it is very difficult to concentrate the heat and the pressure at the point of the weld. If rust or scale is present, the time of welding may have to be considerably increased and in some cases, the mechanical pressure and the electrical power may also have to be increased by 25 % or even 50 %
Total decrease in length: Q: A hollow cast iron cylinder 4 m long, 300 mm is the outer diameter, and thickness of metal 50 mm is subjected to central load on top when standin
What Are Difference Between Hot And Cold Working
Working of Reaction turbine: In the impulse turbine the steam is expanded, causing pressure and heat drop in nozzle only and the moving blades only direct the steam through an
equivalent evaporation of boiler..?
You wish to boil 1.2 kg of water, which has a specific heat capacity of 4186 J/kg-K. The water is initially at room temperature (293 K). Water boils at 373 K. How much energy must
Q. Insulation on Flanges and Valves? Valves, flanges, and unions shall not normally be insulated unless specified by OWNER. All other fittings are to be insulated. Fittings
soldering and brazing ,,its a assignment base, need of soldering and brazing meaning and how it works and where does it used. more over the disadvantages and advantages of the sold
Ignition System: The ignition system is a source and a means of initial spark required to start burning of fuel. A very high voltage supplied at the spark plug tip causes this spa
what are the angle between two force to make their resultant a minimum and maximum respectively .
The two-storey frame shown in Figure Q4 is such that the self-mass may be considered to be located at the beam levels and the beams may be presumed to be rigid. The self-mass (
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