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20 October, 15:59

The highest cutting temperature is located close to the shear zone. a) True b) False

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  1. 20 October, 18:40
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    a) True

    Explanation:

    In cutting action, three type of zone are presents

    1. Primary zone:

    The most of part of energy is converted in to heat.

    2. Secondary zone:

    Heat generation due to rubbing between tool and chip. This also called deformation zone.

    3. Tertiary zone:

    Heat generated due to flank of tool and already machined surface.

    So the highest temperature is located close to the shear zone.
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