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Recommended Feeds & Speeds & Tool Selection Guidelines
For Finishing Applications
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Material
|
RECOMMENDED TOOL STYLE |
RECOMMENDED COATING |
BHN |
SFM |
FPT
1/4” - 3/8” DIA |
FPT
1/2” - 5/8” DIA |
FPT
3/4” - 1” DIA |
|
ALUMINUM
|
SER
107
SER 109
SER 111 |
TiCN,
ZrN, LASER (coat per order) |
80 |
1200
to MAX |
.001
- .003 |
.003
- .006 |
.006
- .012 |
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ALUMINUM
- HIGH SILICONE CONTENT
|
SER
107
SER 109
SER 111 |
TiCN,
ZrN, LASER (coat per order) |
100 |
800 |
.001
- .003 |
.003
- .005 |
.006
- .008 |
|
CAST
IRON
|
SER
106
SER 111
SER 112 |
TiCN,
AlTiN |
160 |
600 |
0.001 |
.002
- .004 |
.005
- .006 |
|
COPPER,
BRASS
|
SER
107
SER 109
SER 111 |
TiCN,
ZrN, LASER (coat per order) |
100 |
900 |
.001
- .002 |
.003
- .004 |
.005
- .007 |
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GRAPHITE
|
SER
107
SER 109
SER 111 |
AlTiN,
ZrN, LASER (coat per order) |
— |
1000+ |
.002
- .004 |
.006
- .008 |
.010
- .012 |
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HIGH
TEMP ALLOYS - NICKEL BASE (INCOLOY, INCONEL, WASPALOY, RENE,
HASTALOY)
|
SER
111
SER 112 |
AlTiN,
TiCN |
200 |
80 |
.0008
- .0012 |
.0012
- .0018 |
.0018
- .0025 |
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PLASTIC
AND COMPOSITES
|
SER
107
SER 109
SER 111 |
TiCN,
ZrN, LASER (coat per order) |
— |
1200+ |
.003
- .004 |
.005
- .008 |
.010
- .014 |
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PLASTIC
WITH HIGH GLASS CONTENT
|
SER
109
SER 111
SER 112 |
AlTiN,
ZrN, LASER (coat per order) |
— |
550 |
.003
- .004 |
.005
- .006 |
.007
- .010 |
|
STEEL
|
SER
111
SER 112 |
TiCN,
AlTiN |
200 |
400 |
.001
- .0015 |
.0015
- .003 |
.003
- .004 |
|
STEEL,
STAINLESS
|
SER
106
SER 111
SER 112 |
TiCN,
AlTiN |
200 |
350 |
.001
- .0015 |
.0015
- .003 |
.003
- .004 |
|
STEEL,
TOOL
|
SER
111
SER 112 |
TiCN,
AlTiN |
200 |
320 |
.001
- .0015 |
.0015
- .003 |
.003
- .004 |
|
STEEL/HARDENED
|
SER
111
SER 112 |
TiCN,
AlTiN |
52
- 60 RC |
30
- 60 |
.0008
- .001 |
.001
- .002 |
.002
- .003 |
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TITANIUM
|
SER
111
SER 112 |
TiCN,
AlTiN |
275 |
400 |
.001
- .015 |
.002
- .004 |
.004
- .006 |
Finishing
Application Formulas
Speeds and
Feeds to be considered as a starting point. Values calculated
at:
Axial Cut (depth) = Diameter x 1.5 · Radial Cut (width) = .020
to .040
Formulas:
Spindle Speed (RPM) = (3.82 x SFM) / Diameter
Feed (Inches Per Minute) = FPT (Feed per Tooth) x RPM x Number
of Flutes
Example: For
starting speed using a ½” 4 flute end mill cutting Stainless at
a hardness of around 200 BHN, find SFM on above chart (SFM=350)
and calculate RPM using formula as follows: RPM = 3.82 x 350 (SFM)
/ .5 (DIA) = 2674 RPM.
For starting feed: .002 (FPT) x (RPM) x 4 (Flutes) = 21 IPM .
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