5 months by cncdivi
Great news! This page offers two Free Online Speeds and Feeds Calculators.
You can use both Hss Feeds And Speeds with simple shop formulas and a full-featured calculator (free for a limited time) that is the industry leader, used daily by top manufacturers worldwide.
They know what they’re doing and wouldn’t waste time or money if the software didn’t work.
Why use the simple free calculator when you can get our full-featured G-Wizard Feeds and Speeds Calculator free for 30 days?
It takes just 37 seconds to download and start using G-Wizard. It costs nothing, and you?ll get great feeds and speeds for 30 days. After that, you can always return to our free online calculator.
Why not use the high-performance model while it?s free?
Click on the Version of G-Wizard Best Suited to Your Needs:
Or, use our simple online cutting feeds and speeds calculator below:
Hss Milling Cutter Speeds And Feeds
Spindle Speed Calculator
Tool Diameter
inches
Surface Speed / Cutting Speed:
SFM (see table below for SFM values).
To learn what is SFM and how to go from SFM to RPM, click this link.
Spindle Speed:
RPM
Spindle RPM Formula = (12 * SurfaceSpeed) / (PI * CutterDiameter)
Feed Rate Calculator
Feed/Tooth (Chipload):
IPT (inches / tooth)
Number of Flutes (Teeth):
Feed Rate:
IPM (inches / minute)
Feed Rate Formula = Chipload * NumberFlutes * RPM
Milling Surface Speeds for HSS End Mills
|
|
Material
|
Surface Speed (SFM)
|
Aluminum - Wrought (6061) | 250 |
Brass | 200 |
Cast Iron - Ductile | 90 |
Cast Iron - Gray | 100 |
Copper Alloy - Wrought | 120 |
Magnesium Alloy | 250 |
Stainless Steel | 30 |
Steel - Mild | 110 |
Steel - Hard Alloy | 60 |
Steel - Tool | 60 |
Wood - Hardwood (For more wood see linked article) | 500 |
Drilling Surface Speeds for HSS Twist Drills
|
|
Material
|
Surface Speed (SFM)
|
Aluminum - Wrought (6061) | 250 |
Brass | 200 |
Cast Iron - Ductile | 80 |
Cast Iron - Gray | 120 |
Copper Alloy - Wrought | 70 |
Magnesium Alloy | 250 |
Stainless Steel | 30 |
Steel - Mild | 110 |
Steel - Hard Alloy | 60 |
Steel - Tool | 60 |
Milling Chiploads for HSS End Mills
|
|
Material
|
Chipload (IPT)
|
Aluminum - Wrought (6061) | 0.005 - 0.010 |
Brass | 0.005 - 0.010 |
Cast Iron - Ductile | 0.004 - 0.008 |
Cast Iron - Gray | 0.002 - 0.006 |
Copper Alloy - Wrought | 0.004 - 0.008 |
Magnesium Alloy | 0.005 - 0.010 |
Stainless Steel | 0.002 - 0.006 |
Steel - Mild | 0.002 - 0.010 |
Steel - Hard Alloy | 0.002 - 0.006 |
Steel - Tool | 0.002 - 0.006 |
Note: Chipload should be adjusted for tool diameter. Smaller tools tolerate much lower chip loads! You can look this up in the manufacturer's catalog, or we can help. |
Hang on: You Deserve Better!
Software that makes anyone a better CNC'er... Even beginners:
Better Tool Life, Surface Finish, and MRR with G-Wizard
It took years, we analyzed data from over 250 tooling catalogs,
we built a powerful cutting physics engine
with advanced algorithms that consider
almost 60 different variables, and we
worked with over 50,000 CNC'ers
like yourself to make sure you'd
have the Best Feeds and Speeds.
Improve My Feeds and Speeds For
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