Page 99 - Turner 1st sem Practicals

Production & Manufacturing Exercise 1.3.28
Turner - Turning

Turning of round stock on 3 jaw self centering chuck
Objectives : At the end of this exercise you shall be able to
• hold the workpiece on a 3 jaw chuck
• set the tool to the centre height
• face the work piece to the required length. Turn the work piece to required diameter.

Job sequence

• Check the raw material. • Face the other end to a total length of 70 mm and
turn the outer diameter Ø25 mm.
• Hold the job in a 3 jaw chuck about 50 mm outside
and true it. • Check the dimension with a steel rule and calipers.

• Face one end. • Deburr the workpiece.
• Turn Ø25 to about 40 mm length.
• Reverse the job and reset it, holding on ∅ 25 mm
inside of the chuck.

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