Page 110 - Turner 1st sem Practicals

Production & Manufacturing Exercise 1.3.32
Turner - Turning

Facing operation to correct length

Objectives : At the end of this exercise you shall be able to
• grind the facing tool
• true the work piece on a 4 jaw chuck
• set the tool to the centre height
• face the work piece to an accuracy of ±0.1mm.

Job sequence

• Check the raw material. • Face the other end to a total length 75.4mm turn the
outer diameter Ø30.2mm.
• Hold the job in a four jaw chuck about 60mm out side
and true it. • Check the dimension with a steel rule and out side
caliper.
• Face one end.
• Deburr the workpiece.
• Turn Ø30.2mm to about 50mm length.
• Reverse the job and reset it, holding onØ 30.2mm.

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