Assuming you have been given the responsibility of procuring some cutting tool for UCSI workshop. Based on your knowledge in manufacturing processes, one of the major properties of interest in a cutting tool material is the hot hardness. Explain the relationship between the cost of a cutting tool and its hot hardness citing at least FOUR (4) examples of cutting tools.
A. Assuming you have been given the responsibility of procuring some cutting tool
for UCSI workshop. Based on your knowledge in manufacturing processes, one
of the major properties of interest in a cutting tool material is the hot hardness.
Explain the relationship between the cost of a cutting tool and its hot hardness citing at least FOUR (4) examples of cutting tools.
b. During a certain machining experiment at the UCSI workshop, it is observed
that temperature at the tool workpiece interface is 1200 oC at a cutting speed of 300 mm/min with a feed rate of 0.002 mm/rev.
(i) Analyse how the temperature will be affected if the cutting speed is
increased by 100 %.
(ii) Determine the cutting speed necessary to achieve a maximum cutting
temperature of 900 oC.
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