A flange used to connect two pipes is shown in Figure Q3. Holes need to be drilled to fix it. Drilling should be done in two steps with each step 7 mm. Using absolute coordinate system and the parameters given in the table below, (i) Determine the coordinates of hole H=4 (ii) Determine the shortest distance between hole H=4 and the center (ii) Write a G code program for drilling hole H=4 only. CNC Drilling Operating Conditions Speed of the spindle 1770 RPM Feed rate of drilling 21 mm/minute Size of the drill bit 8 mm Rack number of drill bit 2 Distance kept between the drill bit and the work piece surface 4.5 mm The flange thickness 14 mm H=2 H=3 H=1 B=30° H=4 A = 60°. angle = 0°. Center (0, 0) Radius = 60 mm %3D Figure Q3

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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A flange used to connect two pipes is shown in Figure Q3. Holes need to be drilled to fix it.
Drilling should be done in two steps with each step 7 mm. Using absolute coordinate system
and the parameters given in the table below,
(i)
Determine the coordinates of hole H=4
(ii)
Determine the shortest distance between hole H=4 and the center
(iii)
Write a G code program for drilling hole H=4 only.
CNC Drilling Operating Conditions
Speed of the spindle
1770 RPM
Feed rate of drilling
21 mm/minute
Size of the drill bit
8 mm
Rack number of drill bit
2
Distance kept between the drill bit and the work piece surface 4.5 mm
The flange thickness
14 mm
H=2
H=3
H=1
B=30°
H=4
A = 60°.
angle = 0°.
Center (0, 0)
Radius = 60 mm
%3D
Figure Q3
Transcribed Image Text:A flange used to connect two pipes is shown in Figure Q3. Holes need to be drilled to fix it. Drilling should be done in two steps with each step 7 mm. Using absolute coordinate system and the parameters given in the table below, (i) Determine the coordinates of hole H=4 (ii) Determine the shortest distance between hole H=4 and the center (iii) Write a G code program for drilling hole H=4 only. CNC Drilling Operating Conditions Speed of the spindle 1770 RPM Feed rate of drilling 21 mm/minute Size of the drill bit 8 mm Rack number of drill bit 2 Distance kept between the drill bit and the work piece surface 4.5 mm The flange thickness 14 mm H=2 H=3 H=1 B=30° H=4 A = 60°. angle = 0°. Center (0, 0) Radius = 60 mm %3D Figure Q3
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