How to choose Carbide Milling Cutter for Stainless Steel
Jun 28, 2025|
View:619Here is the professional English translation of the stainless steel milling cutter selection guide:
Key Technology Selection for Stainless Steel Milling Tools
I. Material Properties & Machining Challenges
Machining Characteristics of Stainless Steel
Pronounced work hardening tendency (Austenitic SS: hardening layer 0.1-0.3mm)
Low thermal conductivity (1/3 of carbon steel)
Severe adhesion tendency (worsens above 600°C)
Typical Failure Modes
Crater wear (rake face)
Edge chipping from built-up edge
Groove wear (flank face)
II. Tool Material Selection
Carbide Cermet CBN PCD
Suitable HRC ≤45 30-50 ≥45 ≤35
Cutting Speed (m/min) 60-120 150-300 80-200 200-400
Life Ratio 1x 2-3x 4-5x 6-8x
III. Geometric Parameter Optimization
Edge Design
Large rake angle (12°-15°) to reduce cutting force
Enhanced edge preparation (ER chipbreaker design)
Asymmetric pitch structure (vibration suppression)
Coating Selection Priority
① AlTiN-Saturn (900°C resistant)
② TiSiN nanocomposite coating
③ DLC coating (mirror finishing)
IV. Process Parameter Recommendations
Cutting Parameters
Roughing: ap=0.3D, ae=0.7D, Vc=60-80m/min
Finishing: ap=0.1D, ae=0.3D, Vc=100-150m/min
Cooling Solutions
High-pressure internal coolant (≥7MPa)
Mist cooling (cutting oil viscosity: 8-10cSt)
Cryogenic air (-10°C) for thin-wall parts
V. Typical Application Cases
Chemical Flange Sealing Face Machining
Tool: φ16mm 4-flute corner radius end mill
Parameters: n=1800rpm, fz=0.08mm/z
Tool life: 35m per cutting edge
Medical Implant Slot Machining
Tool: φ3mm ultrafine-grain carbide end mill
Surface roughness: Ra 0.2μm
Key Translation Notes:
Parameter Notation
ap: axial depth of cut
ae: radial depth of cut
Vc: cutting speed
fz: feed per tooth
Industry-Standard Abbreviations
SS: Stainless Steel
DLC: Diamond-Like Carbon
MQL: Minimum Quantity Lubrication
Material References
316L/17-4PH: Retained original designations (global standard)
This translation preserves the original technical depth while conforming to international engineering documentation standards. For region-specific adaptations (e.g., ISO/DIN/JIS standards), additional localization may be required.








