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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.
i am doing be in mechanical engg in india. so can i do my masters in geoophysic ?
Explain the following observations: cells of Escherichia coli fermenting glucose grow faster when NO3 - is supplied to the culture and then grow even faster when the culture is hig
Flow at low Mach number and zero incidence about M6 wing Results from FP were obtained corresponding to M ∞ = 0.2 and a = 0 and, as noted, with the input files generated by FP
explain the fibre optic communication system with block diagram
hi, I need to do this question but I couldn''t capable to do it. so can you tell me how much money I can give you to be done? How would you value the price of a Microfinance I
Q. Describe briefly the following methods of forging : (i) Drop forging (ii) press forging Ans. (i) Drop Forging: It is also called die
Kalman Filtering All of the measurements generated by the seeker and the navigation system/rate gyros are noisy, and therefore need to be filtered. The Kalman filter, a
Q. Define the concept of strain hardening. Ans. Strain hardening or work hardening in metal occurs because of interaction between the this location and some of obstruction.
mobile communication about transmitting receiving
The guidance law is used to generate a requirement (usually an required acceleration) that will achieve the guidance objective. In this course, we will look at three main types
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