DGI SUPPLY G-ALLOY ROUND TOOLS CA 2021

GP General Purpose Speed & Feed Chart

Speed (SFM) Feed Per Tooth By Diameter (Inches) Bright Finish TiALN Coated 1/4” 5/16” 3/8” 7/16” 1/2” 5/8” 3/4” 1”

Material Group

Aluminum & Aluminum Alloys

600-1200 350-850 250-400 500-800 600-1100 250-450 100-250 80-400 150-500 200-400 100-250 130-230 70-130

900-1800 .0020 .0025 .0030 .0035 .0040 .0050 .0060 .0080 525-1275 .0020 .0025 .0025 .0030 .0030 .0035 .0040 .0060

Copper & Copper Alloys

Brass & Bronze

375-600

.0020 .0025 .0025 .0030 .0030 .0035 .0040 .0050

N

Graphite Plastics

500-1200 .0030 .0035 .0025 .0030 .0030 .0040 .0050 .0070 600-1650 .0030 .0035 .0040 .0050 .0060 .0080 .0100 .0150

Soft Cast Iron Hard Cast Iron

375-650 100-375 100-600 225-650 300-600 150-375 130-345 70-160

.0020 .0022 .0025 .0027 .0030 .0045 .0060 .0080 .0008 .0010 .0015 .0017 .0020 .0025 .0030 .0040 .0010 .0012 .0015 .0017 .0020 .0030 .0040 .0060 .0010 .0015 .0020 .0025 .0030 .0040 .0050 .0070 .0010 .0015 .0020 .0025 .0030 .0040 .0050 .0070 .0015 .0016 .0017 .0018 .0020 .0030 .0040 .0050 .0010 .0011 .0012 .0013 .0015 .0017 .0020 .0030 .0007 .0007 .0008 .0009 .0010 .0015 .0020 .0030 .0005 .0006 .0007 .0009 .0010 .0012 .0015 .0020 .0010 .0012 .0015 .0017 .0020 .0025 .0030 .0040 .0010 .0012 .0015 .0017 .0020 .0025 .0030 .0040 .0010 .0012 .0015 .0012 .0020 .0030 .0040 .0060 .0005 .0006 .0007 .0008 .0010 .0020 .0030 .0050 .0010 .0012 .0015 .0017 .0020 .0025 .0030 .0040 .0010 .0012 .0015 .0017 .0020 .0030 .0040 .0060 .0005 .0006 .0007 .0008 .0010 .0015 .0020 .0020 .0008 .0008 .0009 .0009 .0010 .0012 .0015 .0020

K

Ductile Iron

Malleable Iron

Low Carbon Steels Medium Carbon Steels

Carbon Steels Hardened to 35 Rc Carbon Steels Hardened to 50 Rc Carbon Steels Hardened to 60 Rc

P

30-70

30-90

Mold Steels Tool Steels

200-350 100-250 200-350 100-200 75-175 125-300 50-150 50-100

300-525 150-375 300-450 150-300 75-200 125-375 50-175 50-125

Soft Stainless Steels Hard Stainless Steels

M

Monel & High Nickel Steel

Soft Titanium Hard Titanium

S

Nickel Based High Temp Alloys

TECHNICAL MACHINING POINTS:

• 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 times the tool diameter for profiling and .5 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.

VIEW OR DOWNLOAD GP SPEED AND FEED CHART

GP

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