1. A workpiece with 25mm diameter is turned in a centre lathe with a back rake angle of 12 degrees and front relief angle 7 degrees. Calculate the actual cutting angles (rake angle and clearance angle) if the cutting tool is set (a) 0.8mm above the centre line of the work piece, and (b) 0.8mm below the centre line of the work piece.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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1. A workpiece with 25mm diameter is turned in a centre lathe with a back rake angle of 12 degrees and
front relief angle 7 degrees.
Calculate the actual cutting angles (rake angle and clearance angle) if the cutting tool is set (a) 0.8mm above
the centre line of the work piece, and (b) 0.8mm below the centre line of the work piece.
Rake angle
h
End clearance
angle
Figure. Tool setting errors
Transcribed Image Text:1. A workpiece with 25mm diameter is turned in a centre lathe with a back rake angle of 12 degrees and front relief angle 7 degrees. Calculate the actual cutting angles (rake angle and clearance angle) if the cutting tool is set (a) 0.8mm above the centre line of the work piece, and (b) 0.8mm below the centre line of the work piece. Rake angle h End clearance angle Figure. Tool setting errors
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