DIAbide Endmills

for Machining Non-Metallic Materials

and Non-ferrous Metals
 

Machining Guidelines

Recommended starting parameters

Endmilling parameters are provided in five tables:
Graphite and hard carbon
Green ceramics, powder filled plastics, and thermoset plastics
Fiber filled plastics
Free machining aluminums and low silicon (<10%) aluminums
Metal matrix composites (MMCs)
Slotting applications: Speed should be reduced to approximately 80% of lowest range value. High end ranges are for light radial depth of cut, low end for greater radial depth of cut.
When using long and extended length endmills, reduce feed and speed accordingly.
The above recommendations are for width of cuts or axial lengths of cuts not to exceed 1-1/2 times the cutter diameter.
Machine speed: rpm = revolutions per minute.
Cutting speed: sfm = surface feet per minute; m/min = meters per minute.
Feed rate: fpt = feed per tooth per revolution, inches (mm) per tooth

Graphite and hard carbon
Endmill dia.
inches (mm)		 Machine speed
rpm		 Cutting speed
sfm (m/min)		 Operation Feed rate
fpt
1/64
(.04)		 20,000 to 40,000 80 to 160
(25 to 50)		 Finish .0002 – .0005
(.005 – .015)
1/32
(.80)		 18,000 to 40,000 150 to 325
45 to 100)		 Finish .0005 – .001
(.015 – .025)
1/16
(1.6)		 12,000 to 40,000 200 to 650
(60 to 200)		 General .001 – .002
(.025 – .050)
Finish .0005 – .001
(.015 – .025)
1/8
(3.0)		 6,000 to 40,000
 200 to 1,300
(60 to 400)		 General .001 – .002
(.025 – .050)
Finish .0005 – .001
(.015 – .025)
3/16
(5.0)		 4,000 to 40,000 200 to 1,950
(60 to 600)		 General .001 –.002
(.025 – .050)
Finish .0005 – .001
(.015 – .025)
1/4
(6.0)		 3,000 to 36,700 200 to 2,450
(60 to 750)		 General .002 – .004
(.050 – .100)
Finish .001 – .002
(.025 – .050)
5/16
(8.0)		 2,500 to 31,800 200 to 2,600
(60 to 790)		 General .002 – .004
(.050 – .100)
Finish .001 – .002
(.025 – .050)
3/8
(10.0)		 2,000 to 28,500 200 to 2,800
(60 to 250)		 General .003 – .005
(.075 – .125)
Finish .001 – .003
(.025 – .075)
1/2
(12.0)		 1,500 to 23,000 200 to 3,000
(60 to 915)		 General .003 – .005
.075 – .125)
Finish .001 – .003
(.025 – .075)
3/4
(19.0)		 1,000 to 12,700 200 to 3,000
(60 to 910)		 General .003 – .006
(.075 – .150)
Finish .001 – .003
(.025 – .075)
1
(25.0)		 760 to 11,500 200 to 3,000
(60 to 910)		 General .003 – .006
(.075 – .150)
Finish .001 – .003
(.025 – .075)
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Green ceramics, powder filled plastics, and thermoset plastics
Endmill dia.
inches (mm)		 Machine speed
rpm		 Cutting speed
sfm (m/min)		 Operation Feed rate
fpt
1/64
(.04)		 6,100 to 20,000 25 to 80
(8 to 25)		 Finish .0002 – .0005
.005 – ,015)
1/32
(.80)		 6,100 to 20,000 50 to 160
(15 to 50)		 Finish .0005 – .001
.015 – .025)
1/16
(1.6)		 6,100 to 20,000 100 to 325
(30 to 100)		 General .001 – .002
.025 – .050)
Finish .0005 – .001
(.015 – .025)
1/8
(3.0)		 4,600 to 16,000
 150 to 500
(45 to 150)		 General .001 – .002
(.025 – .050)
Finish .0005 – .001
.015 – .025)
3/16
(5.0)		 4,100 to 15,000 200 to 750
(60 to 230)		 General .001 – .002
(.025 – .050)
Finish .0005 – .001
(.015 – .025)
1/4
(6.0)		 3,050 to 12,000 200 to 750
(60 to 230)		 General .002 – .004
(.050 – .100)
Finish .001 – .002
(.025 – .050)
5/16
(8.0)		 2,400 to 11,000 200 to 900
(60 to 275)		 General .002 – .004
(.050 – .100)
Finish .001 – .002
(.025 – .050)
3/8
(10.0)		 2,000 to 11,200 200 to 1100
(60 to 335)		 General .003 – .005
(.075 – .125)
Finish .001 – .003
.025 – .075)
1/2
(12.0)		 1,500 to 10,000 200 to 1300
(60 to 400)		 General .003 – .005
(.075 – .125)
Finish .001 – .003
(.025 – .075)
3/4
(19.0)		 1,000 to 7,700 200 to 1,500
(60 to 455) 		General .003 – .006
(.075 – .150)
Finish .001 – .003
(.025 – .075)
1
(25.0)		 760 to 5,730 200 to 1,500
(60 to 455)		 General .003 – .006
(.075 – .150)
Finish .001 – .003
(.025 – .075)
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Fiber filled plastics
Endmill dia.
inches (mm)		 Operation Machine speed
rpm		 Cutting speed
sfm (m/min)		 Feed rate
fpt
1/16
1.6)		 General 3,700 to 7,300 60 to 120
(18 to 26)		 .001 – .002
(025 – .050)
Finish 5,200 to 10,400 85 to 170
(26 to 52)		 .0005 – .001
(.015 – .025)
1/8
(3.0)		 General 3,.600 to 7,300 120 to 240
(37 to 73)		 .001 – .002
(.025 – .050)
Finish 5,200 to 9,200 170 to 300
(52 to 90)		 .0005 – .001
(.015 – .025)
3/16
(5.0)		 General 4,100 to 7,100 200 to 350
(60 to 105)		 .001 – .002
(.025 – .050)
Finish 6,100 to 10,200 300 to 500
(90 to 150)		 .0005 – .001
(.015 – .025)
1/4
(6.0)		 General 4,600 to 6,900 300 to 450
(90 to 140)		 .002 – .004
(.050 – .100)
Finish 5,300 to 8,400 350 to 550
(105 to 170)		 .001 – .002
(.025 – .050)
5/16
(8.0)		 General 4,300 to 6,100 350 to 500
(105 to 150)		 .002 – .004
(.050 – .100)
Finish 4,300 to 7,300 350 to 600
(105 to 180)		 .001 – .002
(.025 – .050)
3/8
(10.0)		 General 4,100 to 5,600 400 to 550
(120 to 170)		 .003 – .005
(.075 – .125)
Finish 3,500 to 6,600 350 to 650
(105 to 200)		 .001 – .003
(.025 – .075)
1/2
(12.0)		 General 3,400 to 4,600 450 to 600
(140 to 180)		 .003 – .005
(.075 – .125)
Finish 2,600 to 5,700 350 to 750
(105 to 230)		 .001 – .003
(.025 – .075)
3/4
(19.0)		 General 1,000 to 3,050 200 to 600
(60 to 180)		 .003 – .006
(.075 – .150)
Finish 1,000 to 3,820 300 to 750
(90 to 230)		 .001 – .003
(.025 – .075)
1
(25.0)		 General 760 to 2,300 200 to 600
(60 to 180)		 .003 – .006
(.075 – .150)
Finish 1,145 to 2,865 300 to 750
(90 to 230)		 .001 – .003
(.025 – .075)
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Free machining aluminums and low silicon (<10%) aluminums
Endmill dia.
inches (mm)		 Operation Machine speed
rpm		 Cutting speed
sfm (m/min)		 Feed rate
fpt
1/8
(3.0)		 General 3,000 to 9,200 100 to 300
(30 to 90)		 .0005 – .001
(.015 – .025)
Finish 7,600 to 13,700 250 to 450
(75 to 140)		 .0025 – .005
(.065 – .125)
3/16
(5.0)		 General 3,00 to 7,100 150 to 350
(45 to 105)		 .001 – .002
(.025 – .050)
Finish 6,100 to 11,200 300 to 550
(90 to 170)		 .0005 – .001
(.015 –.025)
1/4
(6.0)		 General 3,800 to 6,100 250 to 400
(75 to 120)		 .001 – .002
(.025 – .050)
Finish 4,600 to 9,900 300 to 650
(90 to200)		 .0005 – .001
(.015 – .025)
5/16
(8.0)		 General 3,000 to 5,500 250 to 450
(75 to 140)		 .001 – .002
(.025 – .050)
Finish 4,300 to 8,600 350 to 700
(105 to 215)		 .0005 – .001
(.015 – .025)
3/8
(10.0)		 General 3,000 to 5,100 300 to 500
(90 to 150)		 .002 – .004
(.050 – .100)
Finish 4,100 to 8,150 400 to 800
(120 to 245)		 .001 – .002
(.025 –.050)
1/2
(12.0)		 General 2,500 to 3,800 325 to 500
(100 to 150)		 .002 – .004
(.050 – .10)
Finish 3,000 to 6,900 400 to 900
(120 to 275)		 .001 – .002
(.025 – .050)
3/4
(19.0)		 General 1,500 to 3,050 300 to 600
(90 to 180)		 .002 – .004
(.050 – .100)
Finish 2,040 to 4,500 400 to 900
(120 to 275)		 .001 – .002
(.025 – .050)
1
(25.0)		 General 1,145 to 2,300 300 to 600
(90 to 180)		 .002 – .004
(.050 – .100)
Finish 1,530 to 3,440 400 to 900
(120 to 275)		 .001 – .002
(.025 – .050)
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Metal matrix composites (MMCs)
Endmill dia.
inches (mm)		 Operation Machine speed
rpm		 Cutting speed
sfm (m/min)		 Feed rate
fpt
1/8
(3.0)		 General 3,000 to 9,200 100 to 300
(30 to 90)		 .0005 – .001
(.015 – .025)
Finish
6,100 to 12,200		 200 to 400
(60 to 120)		 .0025 – .005
(.065 – .125)
3/16
(5.0)		 General 3,000 to 7,100 150 to 350
(45 to 105)		 .001 – .002
(.025 – .050)
Finish 5,100 to 9,200 250 to 450
(75 to 140)		 .0005 – .001
(.015 – .025)
1/4
(6.0)		 General 3,000 to 6,100 200 to 400
(60 to 120)		 .001 – .002
(.025 – .050)
Finish 4,600 to 7,600 300 to 500
(90 to 150)		 .0005 – .001
(.015 – .025)
5/16
(8.0)		 General 3000 to 5,500 250 to 450
(75 to 140)		 .001 – .002
(.025 – .050)
Finish 4,300 to 7,300 350 to 600
(105 to 180)		 .0005 – .001
(.015 – .025)
3/8
(10.0)		 General 3,000 to 5,100 300 to 500
(90 to 150)		 .002 – .004
( .050 – .100)
Finish 4,100 to 6,600 400 to 650
(120 to 200)		 .001 – .002
(.025 – .050)
1/2
(12.0)		 General 2,500 to 3,800 325 to 500
(100 to 150)		 .002 – .004
(.050 – .100)
Finish 3,000 to 5,700 400 to 750
(120 to 230)		 .001 – .002
(.025 – .050)
3/4
(19.0)		 General 1,500 to 3,050 300 to 600
(90 to 180)		 .002 – .004
(.050 – .100)
Finish 2,040 to 3,820 400 to 750
(120 to 230)		 .001 – .002
(.025 – .050)
1
(25.0)		 General 1,145 to 2,300 300 to 600
(90 to 180)		 .002 – .004
(.050 – .100)
Finish 1,530 to 2,865 400 to 750
(120 to 230)		 .001 – .002
(.025 – .050)
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Overview Endmill Catalog Applications