AL Aluminum Medium/Roughing
Bright Finish Bright Finish
ZrN
ZrN
Cut
Overall
Diameter
End Face
Chipbreaker
Chipbreaker
Shank Length Length
D
3 FL
3 FL
3 FL
3 FL
d
I 1
L 4
Fract. Decimal
1-5/8 1-5/8 1-5/8 1-5/8 1-5/8 2-1/4 2-1/4 1-1/2 1-1/2 1-1/2 1-1/2 2-1/4 2-1/4
SQ
DRT6307503
--
DRT6317503
--
4 .030CR DRT6307503030R DRT6457503030R DRT6317503030R DRT6467503030R
4 4
.060CR DRT6307503060R .090CR DRT6307503090R
-- -- -- --
-- -- --
-- -- -- --
3/4
.7500
3/4
4 .120CR DRT6307503120R
5
SQ
DRT6357503
DRT6367503
5 .030CR DRT6357503030R DRT6557503030R DRT6367503030R DRT6567503030R
4
SQ
DRT6301003
--
DRT6311003
--
4 .030CR DRT6301003030R DRT6451003030R DRT6311003030R DRT6461003030R
4
.060CR DRT6301003060R
-- -- --
-- --
-- -- --
1 1.0000 1
4 .120CR DRT6301003120R
5
SQ
DRT6351003
DRT6361003
5 .030CR DRT6351003030R DRT6551003030R DRT6361003030R DRT6561003030R
AL Aluminum Speed & Feed Chart
Feed Per Tooth By Diameter (Inches) ZrN Coated 1/4” 5/16” 3/8” 7/16” 1/2” 5/8” 3/4”
Material Group
1”
Aluminum & Aluminum Alloys
900-1800 525-1275 375-600 500-1200 600-1650
.0030 .0035 .0040 .0045 .0050 .0060 .0070 .0090 .0030 .0035 .0035 .0040 .0040 .0045 .0050 .0070 .0030 .0035 .0035 .0040 .0040 .0045 .0050 .0060 .0040 .0045 .0045 .0045 .0045 .0050 .0060 .0080 .0040 .0045 .0050 .0060 .0070 .0090 .0110 .0160
Copper & Copper Alloys
Brass & Bronze
N
Graphite Plastics
• Use the lower end of the speed range for 40 Taper Machines & the higher end of the speed range for 50 Taper Machines. • Higher feed per tooth should be used to start for radial depths of cut less than 25% of the tool diameter. Lower feed per tooth should be used to start for radial depths of cut greater than 25% of the tool diameter. • The above recommendations are for axial lengths of cut not to exceed 1.5 times the tool diameter for profiling and 1 times the diameter for full slotting. • The above parameters are recommended starting points only. If the tool is working well, without vibrations or significant noise, increase SFM and/or Feed Per Tooth in 5-10% increments. • Optimum speeds & feeds will depend upon material, setup, machine conditions & tool deflection. Higher or lower parameters may be required to achieve optimum machining conditions. • For lighter radial depths of cut, make certain to increase the feed rate to compensate for Radial Chip Thinning Factor (RCTF). Consult a formula or app to calculate. • Climb milling is preferred to Conventional milling. TECHNICAL MACHINING POINTS:
VIEW OR DOWNLOAD AL SPEED AND FEED CHART
AL
33
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