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Discussion :: Manufacturing and Production Technology

  1. The angle formed by the leading edge of the land with a plane having the axis of the drill, is called

    2. A.

     Helix or rake angle
    B.

     Point angle
    C.

     Chisel edge angle
    D.

     Lip clearance angle

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    Workspace

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    Answer : Option A

    Explanation :

    The angle formed by the leading edge of the land with a plane having the axis of the drill, is called Helix or rake angle The rake angle is the angle of the surface of a cutting tool tip over which the removed chips flow. The rake angle is the angle between the front or cutting face of the tool and a line perpendicular to the workpiece

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