Manufacturing Process

Topics: Cutting, Angle / Pages: 3 (603 words) / Published: May 22nd, 2013
Objectives:
The experiment was done to establish the work of a lathe machine on a cylindrical work piece provided and convert the shape of the work piece into the desired shape by using lathe operations.
Theory:
The lathe is a machine tool which holds the workpiece between two rigid and strong supports called centers or in a chuck or face plate which revolves. The cutting tool is rigidly held and supported in a tool post which is fed against the revolving work. The normal cutting operations are performed with the cutting tool fed either parallel or at right angles to the axis of the work.
The cutting tool may also be fed at an angle relative to the axis of work for machining tapers and angles.

To get the desired shape of a work piece a lathe machine is used and the processes involved to set up the final product are as follows:

 Job setting
 Facing
 Plane turning
 Marking
 Stepping
 Edge cutting
 Resetting
 Drilling
 inspection

Apparatus: Various tools are required to perform the desired experiment.

Steel rule

For measurement of the workpiece

Marking knife

For marking the workpiece

Vernier calipers

To take the varying diameter of the work piece

Tool post spanner

For making adjustments to the tools
Chuck key

Used for tightening or loosening the bolts on the chuck Parting tool

To remove finished parts.

Procedure
• We took a mild steel round 25*80 mm long piece and set it in the chuck with the required length by the use of chuck key.
• Then marked the job as per given measurements with the help of steel rule and calipers.
• Did the steps and cut edges with the help of side cutting tool.
• Repeated the procedure 1 to 4 for mild steel round 25*50mm
• Went to drilling process, and made 10 mm of diameter for mild steel 25*80.
• Did the free and plane operations and finish the job as per given sketch.

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