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Compressive Stress:
The stress induced in a body, when subjected to two equal and opposite pushes as shown in figure (a)
as a result of which there is an decrease in length, is known as tensile stress.
Assume that, an axial push P is acting on body of cross sectional area A. Then compressive stress( σ c) can be given by;
σc= Resisting force (R)/Cross sectional area (A)
σc= P/A N/m2.
Cobalt-base super alloys (e.g. UNS R30155 (Grade 661) and R30816 (Grade 671)) have superior strength to the nickel base alloys above 1800°F (980°C). The refractory metal alloys
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Polygon law of forces
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Write the velocity relationship in orthogonal cutting. A bar of 75 mm dia. is reduced to 73 mm by a cutting tool while cutting orthogonally. If the mean length of cut chip is 73.5
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