Explain the difference between f and fz using a formula:
Fz – feed per tooth (mm)
F – feed rate
𝑣𝑓 = #𝑡𝑒𝑒𝑡ℎ ∗ 𝑓𝑧 ∗ n
Explain the difference between cutting speed and feed rate using a formula:
Cutting speed is considered the speed of a tool that cuts the workpiece. In comparison, the feed rate
is the distance travelled by the tool in one revolution of the spindle.
Explain the difference between cutting speed and spindle speed using a formula:
The cutting speed is proportional to the spindle speed AND the diameter at which cutting is being
done.
Is the cutting speed of a tool equal to the circumferential speed of a tool? Motivation:
Yes
2 different clampings
Manual NC code:
TO3 MO6;
G90;
G54;
S2600 MO3;
G43 HO3;
N00 G00 X-30. Y10. Z-7.1;
N01 G01 X-30. Y-4. Z-7.1 F100;
N02 G01 X-91. Y-4. Z-7.1 F100;
N03 G01 X-91. Y-12. Z-6. F100;
N04 G01 X-30. Y-12. Z-6. F100;
N05 G01 X-30. Y-20. Z-6. F100;
N06 G01 X-91. Y-20. Z-6. F100;
N07 G01 X-91. Y-28. Z-6. F100;
N08 G01 X-30. Y-28. Z-6.
F100;
NO9 G00 X-30. Y10. Z-6.;
NO10 G00 X-30. Y10. Z-6.;
Load the tool with address 3 (10mm radius), M06 orders a tool
change.
Use absolute dimensional notation.
Use the workpiece zero programmed in this code.
Rotate the spindle at 2,600 rpm, M03 defines the clockwise
direction
Load tool length compensation (G43) of tool 3 (H03)
Interactive (VQC) programming:
1. Face Milling (the recess on the front side)
ToolNo: 3
Workoffset: 54?
Cutrad: max 70% of diameter (max 7mm)
SpdlRpm: 2600
Depthcut: 6mm?
Xdist: 71mm
Ydist: 30mm
Feedrate: 100
FeedZ: ?
2. Peck Drilling (the two holes on the front side):
ToolNo: 9
Workoffset: 54
Xpos1: -10
Ypos1: -15
Xpos2: -111
Ypos2: -15
SpdlRpm: 2100
Drldepth: 28.5mm
Peck: 5mm
Rplane: 10mm?
3. Tapping (the two holes on the front side)
ToolNo: 10
Workoffset: 54
Xpos1: -10
Ypos1: -15
Xpos2: -111
Ypos2: -15
SpdlRpm: 500
Pitch: 1.25
Tapdepth: 26mm
Rplane: 10mm
4. Peck Drilling (the two holes for countersink on the top side)
ToolNo: 9
Workoffset: 54
Xpos1: -8
Ypos1: -8
Xpos2: -113
Ypos2: -8
SpdlRpm: 2100
Drldepth: through
Peck: 5mm
Rplane: 10mm?
Function for loading tool 3 and actuate it with a spindle speed of 10,000 rpm clockwise:
TO3 MO6;
G90;
G54;
S10000 MO3;
G43 HO3;