The power required to machine metal is related to the cutting force (Fc) and the cutting speed. For a turning operation, you have selected an HSS (high speed steel) tool and turning a hot-rolled free-machining steel. Your depth of cut is fixed at 0.150 inches. The diameter of the workpiece is 1.00 inch. a) Estimate the cutting force Fc when the material removal is 2 cubic inch per minute and the spindle is rotating at 400 rpm. Specific cutting energy for free-machining steel is 0.5 hp-min/inch3. [ Select ] b) What will be the power needed at the spindle

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explanation:

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only