Q3 Provided below is the Tool life data for cutting low carbon steel with HSS tool. Draw thetool life relation and1- find the n and c exponent for the tool life equation2- find the cutting speed for 14 min tool lifeCutting Speed(ft/min)250 180 150 100Tool Life (min) 2 5 10 30

The tool life equation in linear form can be expressed as,

Answered: Q3 Provided below is the Tool life data…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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In a machining operation, doubling the cutting speed reduces the tool life to 1/8th of the original value. What is the exponent n in Taylor's tool life equation VTn = C,
The tool life equation for HSS tool is VT0.14f 0.7d 0.4 = Constant. The tool life (T) of 20 min is obtained using the following cutting conditions: V = 40 m/min, f = 0.30 mm, d = 2.0 mm If speed (V), feed (f) and depth of cut (d) are increased individually by 25% . Calculate the tool life.
(j) In a turning operation on stainless steel with hardness = 200 HB, the cutting speed = 250 m/min, feed = 0.3 mm/rev, and depth of cut = 8 mm. How much power will the lathe draw in performing this operation if its mechanical efficiency = 95%. Use Table below to obtain the appropriate specific energy value.
In machining a mild steel work piece with carbide tool, the life of the tool was found to be 1 hour and 40 minutes, at a spindle speed of 25 m/min. Calculate the tool life if it has to be operated at a speed of 30% higher than the initial cutting speed. Also calculate the cutting speed if the tool is required to have a life of 2 hours and 45 minutes. Assume Taylor’s exponent value n is 0.28.
Find the machining time required to turn a mild steel rod from 65mm to 58 mm over a length of 100 mm by using a carbide insert. If the approach length and over run length is taken as 5 mm, Cutting speed as 20 m/min and feed is =0.2 mm/rev, and the depth of cut is 0.5mm
2 2 .19 Make a list of the alloying elements used in high-speed steels. Explain w hat their functions are and why they are so effective in cutting tools.
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A turning operation is carried out on aluminum. Based on the specific energy values in the table in your text, determine material removal rate and cutting power in the operation under the following sets of conditions: (a) Cutting speed = 5.6 m/s, feed = 0.25 mm/rev, and depth of cut = 2.0 mm; and (b) cutting speed = 1.3 m/s, feed = 0.75 mm/rev, and depth of cut = 4.0 mm.
21.48 Let n = 0.5 and C = 400 in the Taylor equation for tool wear. W hat is the percent increase in tool life if the cutting speed is reduced by (a) 50% and (b) 75%?
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A steel rod 250 mm long and 200 mm in diameter is being reduced to 190 mm in diameter all over its length in one travel. The machine spindle rotates at 500 rpm, whereas the tool is moving at an axial feed of 0.5 mm/rev; calculate the following: Material removal rate (mm3/min) Consumed gross power in Nm/s if cutting force is 477.5N and mechanical efficiency is 90% Cutting time plzz complete in 30 minutes

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Q3 Provided below is the Tool life data for cutting low carbon steel with HSS tool . Draw the tool life relation and 1- find the n and c exponent for the tool life equation 2- find the cutting speed for 14 min tool life Cutting Speed (ft/min) 250 180 150 100 Tool Life (min) 2 10 30