Manufacturing And Production Technology
Crater wear occurs mainly on the

Cutting edge only
Nose part, front relief face and side relief face of the cutting tool
Front face only
Face of the cutting tool at a short distance from the cutting edge only

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

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

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