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In spot welding, the parts to be joined are normally over lapped. The work piece are clamped between two water cooled copper electrodes. On the passage of a high transient current, the interface melts over a spot and form the weld. The cooling at the electrode limits the size of the spot. A very high current is needed for a very short duration to complete the welding. The interfaces to be joined are initially cleaned by various methods, including scratch brushing and vapour decreasing. A spot weld normally contains some porosity at the weld centre, which unless excessive is harmless.
The spot welding process is difficult to use for highly conductive materials such as aluminum and magnesium.
Essentially, the strategy of CFD is to replace the continuous problem domain with a discrete domain using a grid domain with a discrete domain using a grid. In a continuous doma
WORKING OF I.C. ENGINE Basically there are 2 types of internal combustion engines; the two stoke type and the 4-stroke type. A brief description of these is given below: 1.
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Expertsmind.com brings you unique solution in electrical engineering - Laws of Motion - Speed is how much distance will be covered in a certain time.
Q. The Electricity generation in Florida is 224,750GWh/y. What is the annual generation per capita? Knowing the population of Florida, the electricity generation per capita is 1
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