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How to choose Carbide Milling Cutter for Stainless Steel
 Jun 28, 2025|View:619

Here 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.


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