Table 1 below shows the cutting speed for some common materials and the feed rates for various milling cutters. Material Cutting Speed m/min 70– 100 Feed per tooth (mm) Slab Mill End Mill 0.1-0.4 0.07 - 0.3 0.1-0.4 0.05 – 0.2 0.05 – 0.2 0.05 - 0.2 Face Mill Aluminium Brass 0.2 - 0.8 0.2 - 0.6 35 - 50 0.15 - 0.6 0.15 – 0.5 Bronze 50 – 70 0.07- 0.3 0.2 -0.6 Cast Iron Copper Mild Steel Thermo-setting plastic 20 - 35 0.1-0.4 0.1-0.3 35 - 45 0.1-0.4 0.1-0.3 30 - 40 0.1-0.4 0.1-0.3 20 -30 0.15 - 0.6 0.15 - 0.5 0.07 - 0.3 Table 1 Using relevant information from table 2, calculate the time taken to complete a 300 mm long cut on an aluminium plate using a 75 mm diameter slab mill with 6 teeth.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
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calculate the time taken to complete a 300 mm long cut on an aluminium plate using a 75 mm diameter slab mill with 6 teeth.

Table 1 below shows the cutting speed for some common materials and the feed rates for various
milling cutters.
Material
Cutting Speed
m/min
70– 100
Feed per tooth (mm)
Slab Mill
End Mill
0.1-0.4
0.07 - 0.3
0.1-0.4
0.05 – 0.2
0.05 – 0.2
0.05 - 0.2
Face Mill
Aluminium
Brass
0.2 - 0.8
0.2 - 0.6
35 - 50
0.15 - 0.6
0.15 – 0.5
Bronze
50 – 70
0.07- 0.3
0.2 -0.6
Cast Iron
Copper
Mild Steel
Thermo-setting
plastic
20 - 35
0.1-0.4
0.1-0.3
35 - 45
0.1-0.4
0.1-0.3
30 - 40
0.1-0.4
0.1-0.3
20 -30
0.15 - 0.6
0.15 - 0.5
0.07 - 0.3
Table 1
Using relevant information from table 2, calculate the time taken to complete a 300 mm long cut on
an aluminium plate using a 75 mm diameter slab mill with 6 teeth.
Transcribed Image Text:Table 1 below shows the cutting speed for some common materials and the feed rates for various milling cutters. Material Cutting Speed m/min 70– 100 Feed per tooth (mm) Slab Mill End Mill 0.1-0.4 0.07 - 0.3 0.1-0.4 0.05 – 0.2 0.05 – 0.2 0.05 - 0.2 Face Mill Aluminium Brass 0.2 - 0.8 0.2 - 0.6 35 - 50 0.15 - 0.6 0.15 – 0.5 Bronze 50 – 70 0.07- 0.3 0.2 -0.6 Cast Iron Copper Mild Steel Thermo-setting plastic 20 - 35 0.1-0.4 0.1-0.3 35 - 45 0.1-0.4 0.1-0.3 30 - 40 0.1-0.4 0.1-0.3 20 -30 0.15 - 0.6 0.15 - 0.5 0.07 - 0.3 Table 1 Using relevant information from table 2, calculate the time taken to complete a 300 mm long cut on an aluminium plate using a 75 mm diameter slab mill with 6 teeth.
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