Physics, 27.02.2020 21:35 sreyasusanbinu

A high-speed cast iron bar 7.25 inch diameter is being machined on a lathe. The depth of cut is 0.031 inch and the spindle rotates at 550 RPM. The width of the cutting tool is 0.16 inch. The specific energy for machining high-speed cast iron is 1.62 HP. min/cubic-inch.

i. What is the cutting force (Fc)? 1 HP = 33000 ft. lbs/min
ii. If the friction angle is 37 degrees and the rake angle is 10 degrees, calculate the coefficient of friction.
iii. What is required cutting power in Horsepower? 1 HP = 33000 ft. lbs/min

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A high-speed cast iron bar 7.25 inch diameter is being machined on a lathe. The depth of cut is 0.03...