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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.
Speed control in Aircraft Engine: Because the APU is designed to run at a constant rpm, some means must be provided to control this speed. Such a control device is known as a
Compute the motor size required to pump 28.3 cms through a 3,050 m long, 3.66 m diameter pipeline to an upper reservoir 610 m above the lower reservoir. Use a friction facter of 0.
Q. Describe the advantages and disadvantages of hot working and cold working processes. Explain the extrusion process. Ans. Advantages of hot working process
Question: (a) What are the criteria that a frequency planner and a network engineer need to consider during cellular planning and design. (b) Assuming that you work as a c
Prepare a list of questions that should be resolved in identifying each of the following problems: a. Develop an improved manual gearshift for a mountain bike. b. Develop a hands-f
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1- plot and creat x1(t)=4exp(t/5),x2(t)=Sin(2pift+Pi/2) 2-write a c fucntion to compute convolution of n2 finite series ands plot 3-implemet an FIR filter in c in CCS
Hi, I require a service which involves finite element modelling on commercial software package "ABAQUS". I am personally not sure how to model this on ABAQUS and thats why I have
FUEL FLOW METERING: Fuel flowmeters are fitted in aircraft to give an accurate indication of the rate at which fuel is being used and the total amount of fuel that has been use
variation of energy bands with alloy composition
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