DG Long Length of Cut DG Coated 4-Fluted End Mills for Graphite
List 7430: DG-EBML
Contouring
Graphite
Work Material
Roughing
Finishing
Cutting Speed
164 SFM
164 SFM
Aa = 0.2D Ar = 0.2D
Aa = 0.03D Ar = 003D
Depth of Cut
Mill Dia.
Speed RPM 20,000 13,365 10,025 6,680 5,010 3,340
Feed in/min
Speed RPM 20,000 13,365 10,025 6,680 5,010 3,340
Feed in/min
Inch 1/32 3/64 1/16 3/32
95 63 47 32 24 16 12
95 63 47 32 24 16 12
1/8
3/16
1/4 3/8 1/2
2,505 1,670 1,255
2,505 1,670 1,255
8 6
8 6
Set the ramping angle to be approximately 0.5°. 1. Adjust the speed, the feed rate, and the depth of cut to suit your operating conditions, such as the milling shape, machine rigidity, tool holder rigidity, and work holding force. 2. If you are unable to reach the speed and feed rate indicated in the table above, lower the speed and feed rate using the same ratio. 3. If the workpiece gets chipped or if the operation requires a higher level of milling precision, lower the feed rate as necessary. 4. Depending on the shape, if the workpiece chatters, lower the speed and feed rate using the same ratio. 5. To mill graphite, use a dedicated milling machine. To prevent inhalation of dust, use a dust collector and a dust mask when working around graphite. 6. During milling, keep the runout at the tip of the end mill to be less than 0.0004 inches (0.01 mm). 7. If a cut involves the shaping of a corner, use the corner radius process of the program, or adjust the speed so that it will not cause chattering, and reduce the speed at the corner at the same time (approximately 60%).
List 7431: DG-LN-EBML
Contouring
Graphite
Work Material
Roughing
Finishing
Cutting Speed
82 SFM
82 SFM
Aa = 0.2D Ar = 0.2D
Aa = 0.03D Ar = 003D
Depth of Cut
Mill Dia.
Speed RPM 10,000
Feed in/min
Speed RPM 10,000
Feed in/min
Inch 1/32 3/64 1/16 3/32
31 21 16 11
31 21 16 11
6,685 5,015 3,340 2,505 1,670 1,255
6,685 5,015 3,340 2,505 1,670 1,255
1/8
8 5 4 3 2
8 5 4 3 2
3/16
1/4 3/8 1/2
835 630
835 630
Set the ramping angle to be approximately 0.5°. 1. Adjust the speed, the feed rate, and the depth of cut to suit your operating conditions, such as the milling shape, machine rigidity, tool holder rigidity, and work holding force. 2. If you are unable to reach the speed and feed rate indicated in the table above, lower the speed and feed rate using the same ratio. 3. If the workpiece gets chipped or if the operation requires a higher level of milling precision, lower the feed rate as necessary. 4. Depending on the shape, if the workpiece chatters, lower the speed and feed rate using the same ratio. 5. To mill graphite, use a dedicated milling machine. To prevent inhalation of dust, use a dust collector and a dust mask when working around graphite. 6. During milling, keep the runout at the tip of the end mill to be less than 0.0004 inches (0.01 mm). 7. If a cut involves the shaping of a corner, use the corner radius process of the program, or adjust the speed so that it will not cause chattering, and reduce the speed at the corner at the same time (approximately 60%).
osgtool.com
1493
End Mill Technical
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