G. W. Schultz Tool Inc | Carbide End Mill Tools
Speeds And Feeds for Carbide End mill Cutting Tools

SPEEDS
Solid carbide end mills should be run at higher speeds than high speed steel end mills. Many times, lighter cuts at higher speeds can improve the finish of the work piece. Speeds should be reduced when milling hard or tough materials and when taking heavy cuts. Speeds should be increased when milling softer materials or when taking light cuts.

FEEDS
Generally, the feed per tooth, or chip load, may be maintained by using two, three, or four flute end mills. When peripheral milling, the highest feed rates can be achieved when the width of cut is less than the radius of the end mill. Feed rates can be increased when milling easily machined or abrasive materials. They should also be increased to eliminate chatter. The accompanying table gives recommended starting speeds and feeds of the most commonly used materials.

FEED PER TOOTH
MATERIAL

SPEED(SFM)

1/8 DIA.

1/4 DIA.

1/2 DIA.

3/4 DIA.

1 DIA.

Aluminum/AluminumAlloys

850-1300

.0010

.0020

.0040

.0060

.0080

Brass / Bronze Soft

400-700;

.0010

.0020

.0030

.0040

.0080

Bronze / High Tensile

250-400

.0010

.0020

.0030

.0040

.0080

Copper / Copper Alloys

450-850

.0010

.0020

.0030

.0040

.0080

Iron, Hard Cast

250-450

.0007

.0010

.0020

.0030

.0080

Iron, Soft Cast

200-300

.0010

.0020

.0030

.0050

.0080

Iron, Malleable

250-400

.0010

.0020

.0030

.0050

.0080

Monel / Nickel Base Alloys

150-250

.0005

.0010

.0020

.0030

.0080

Molybdenum

800-1100

.0010

.0020

.0040

.0060

.0080

Plastic and Related Materials

800-1600

.0020

.0030

.0060

.0100

.0080

Steel, Hardened up to Rc 35

150-250

.0005

.0010

.0015

.0020

.0080

Steel, Hardened up to Rc 50

80-150

.0003

.0007

.0010

.0020

.0080

Steel, Hardened up to Rc 60

35-80

.0002

.0005

.0010

.0015

.0080

Steel, Low Carbon

275-550

.0007

.0010

.0030

.0050

.0080

Steel, Tool

100-235

.0005

.0010

.0020

.0030

.0080

Stainless Steel, Free Machining

250-400

.0005

.0010

.0020

.0030

.0080

Stainless Steel, Work Hardening

100-250

.0005

.0010

.0020

.0030

.0080

Titanium Alloys

80-200

.0003

.0005

.0010

.0020

.0080

TOLERANCES:

 Cutter Diameter; +.0000 / -.0002
Shank Diameter; + .0000 / - .0005

 

 

G. W. Schultz Tool Inc | Carbide End Mill Tools

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