lab report 2(b) - Machining Processes Experiment 2(b To...

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Machining Processes Lathe machine operations Page 1 Experiment # 2(b): To study the different operations of lathe machine. a. Taper Turning APPARATUS: Lathe machine Taper turning: An operation performed on a lathe that feeds a tool at an angle to the length of the workpiece in order to create a conical shape. Methods of taper turning: In ordinary straight turning, the cutting tool moves along a line parallel to the axis of the work, causing the finished job to be the same diameter throughout. However, when cutting a taper, the tool moves at an angle to the axis of the work, producing a taper. Therefore, to turn a taper, the work must either be mounted in a lathe so that the axis upon which it turns is at an angle to the axis of the lathe, or cause the cutting tool to move at an angle to the axis of the lathe. When the diameter of a piece changes uniformly, from one end to the other, the piece is said to be tapered. Taper turning as a machining operation is the gradual reduction in diameter from one part of a cylindrical workpiece to another part.

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