Calculate feed rate for the cutter shown below if the feed rate per tooth is 0.3 (mm) and the rotational speed N is 2359 (rev/min).

F=n·f·N, 

where n - is amount of cutter's teeth.

Round up the answer to 1 decimal place.

Determine the required cutting time T (s) for the workpiece made of steel (cutting speed V=400 m/min) external turning. Machined outer surface diameter d=295.8 mm and cutting length is 966 mm. The feed during turning is s=2.9 (mm/rev) and the depth of cutting t=1.0 (mm), see figure below.

 To calculate cutting time T (s) use following equation:

where N - spindle rotational speed, rev/s;

Answer round up to two decimal places.

What is the type of cutting tool shown in figure below?

Calculate the deformation rate V_kr, if the steel has the following chemical composition:

C = 0.5 %

Provide the answer with an accuracy of two decimal places.

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What is the type of cutting tool shown in figure below?

Which turning operation and which surface of workpiece is possible to machine with the shown in the figure cutting tool?

Calculate Hot Cracking Susceptibility(HCS) for a steel with following chemical composition:

C = 0.4

Provide the answer with 1 decimal place accuracy.

Calculate Carbon Equivalent (CE) of the steel. The chemical composition of the steel is as follows:

C = 0.36%

Write the answer with accuracy of two decimal places. Use "." as decimal separator.

Find required spindle rotational speed N (rpm) for external turning of a workpiece made of steel. Outer radius of the workpiece is R=79.7 mm and cutting speed V=638  m/min.

Cutting speed for turning is calculated as:

where D - workpiece diameter, mm;

Answer provide as full number.