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A helical compression spring is used to take the shock. The initial compression of the spring is 30 mm and it is further compressed by 50 mm while absorbing the shock. The spring is to absorb 250 J of energy during the procedure. The spring index will be taken as 6. The spring is made of patend and cold drawn steel wire with ultimate tensile strength of 1500 N/mm2 and modulus of rigidity of 81370 N/mm2 . The permissible shear stress for the spring wire could be taken as 30 % of the ultimate tensile strength. Design the spring.
a) Define various types of chips and factors responsible for their formation with diagram b) Describe cutting ratio, shear plane and shear angle. c) Sketch Merchant circle di
Explain Side Cutting Edge Angle It is angle between the side cutting edge and the longitudinal axis of the tool. It avoids formation of build up edge, controls the direction of
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Constant Mesh Type Gear Box : Most of the gearboxes on motorcycles are "constant mesh". That means all the gears are constantly meshed with one another and are always spinning. T
Q. Can you implement Compatibility test ? This test indicates the decrease in height of a mass of sand in a specimen tube with respect to its original height, under the actio
Explain Clamping Devices A clamp is a device that holds the work piece firmly against the locators provided and also resists all forces generated by the cutting action of
Illustrate the general shear failure in bearing capacity. General Shear Failure: In this case of failure, contiguous failure surfaces develop between the edges of the footin
determine the vertical deflection at end A neglecting shear
Consider fully developed laminar flow with constant properties in a circular tube. Let there be heat transfered to or from the fluid at a constant rate per unit of tube length.Ad
Explain the autoignition and detonation theory of detonation. What do you mean by preignition ? Describe octane Rating of a fuel. What are the different S.I. engine combustion cham
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