Manufacturing And Production Technology
Which of the following statement is incorrect with reference of lathe cutting tools?

The heel is that part of the tool which is shaped to produce the cutting edges and face
The flank of the tool is the surface or surfaces below and adjacent to the cutting edges
The base is that surface of the shank which bears against the support and takes tangent pressure of the cut
The nose is the corner, arc or chamfer joining the side cutting and the end cutting edges

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Manufacturing And Production Technology
In determining the various forces on the chip, Merchant assumed that the

Cutting velocity remains constant
Cutting edge of the tool is sharp and it does not make any flank contact with the workpiece
All of these
Only continuous chip without built-up-edge is produced

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