Service de Fraisage CNC —
Fraisage 3 Axes, 5 Axes & Grande Vitesse
Des supports prismatiques simples à la géométrie aérospatiale complexe, nos 200+ machines CNC livrent des pièces fraisées avec précision à des tolérances jusqu'à ±0,001 mm — dans les délais, à chaque fois.
Qu'est-ce que le Fraisage CNC ?
Le fraisage CNC est un procédé d'usinage soustractif dans lequel des outils de coupe rotatifs à commande numérique retirent de la matière d'une pièce brute. Unlike turning — which spins the part — milling spins the tool and moves it across a stationary or indexed workpiece along multiple linear and rotational axes.
3-axis milling moves the cutter in X, Y and Z — sufficient for the majority of prismatic features: flat surfaces, pockets, slots and drilled holes. It is the most cost-effective approach for parts where all features are accessible from one face or a small number of setups.
5-axis simultaneous milling adds two rotational axes (A and B, or A and C), letting the spindle approach the workpiece from virtually any angle in a single clamping. This eliminates repositioning errors and is essential for compound-curve aerospace surfaces, medical bone plates, and turbomachinery components. Learn more on our dedicated 5-axis page.
Choose 3-axis for flat or simply stepped geometry. Choose 4- or 5-axis when your part has compound angles, undercuts, or when you need to minimize setups to hit tight positional tolerances across multiple faces.
Types de Fraisage CNC
Nous exploitons des centres de fraisage CNC à 3, 4 et 5 axes. Le bon choix dépend de la géométrie de la pièce, de la taille du lot et de la tolérance requise.
Fraisage 3 axes
The workhorse of CNC milling. Three linear axes (X, Y, Z) handle the vast majority of prismatic parts — housings, brackets, plates, and blocks with flat or gently contoured surfaces.
- Standard tolerance ±0.01mm
- Flat & contoured surfaces
- Pockets, slots & through-holes
- Max part 600 × 400 × 300 mm
Ideal for: brackets, enclosures, plates, jigs and fixtures
Fraisage 4 axes
A rotary A-axis added to 3-axis movement. Parts can be indexed or continuously rotated during cutting, eliminating secondary setups for features around a cylindrical or complex profile.
- Rotational features in one setup
- Complex profiles & cams
- Reduced fixturing cost
- Excellent for shaft-style parts
Ideal for: cams, impeller blanks, manifolds with radial features
Fraisage 5 axes
Simultaneous 5-axis movement lets the cutter approach from any direction. Complex compound curves, undercuts, and tight cavities are cut in a single setup — reducing errors and cycle time.
- Achievable tolerance ±0.001mm
- Aerospace & medical geometry
- Single-setup complex parts
- Undercuts & compound curves
Ideal for: turbine blades, medical implants, aerospace structural parts
En savoir plusComparaison des Spécifications
Spécifications de référence rapide pour nos services de fraisage 3 et 5 axes.
| Spécification | 3 Axes | 5 Axes |
|---|---|---|
| Tolérance Standard | ±0.01 mm | ±0.005 mm |
| Haute Précision | ±0.005 mm | ±0.001 mm |
| Taille Pièce Max | 600 × 400 × 300 mm | 500 × 400 × 250 mm |
| Taille Détail Min | 0.5 mm | 0.3 mm |
| Épaisseur Min | 0.5 mm | 0.4 mm |
| Profondeur/Largeur Max | 4:1 | 6:1 |
| Finition Ra | 0.8 μm std | 0.4 μm std |
Les tolérances atteignables dépendent du matériau, de la géométrie de la pièce et de la taille de la caractéristique. Contactez-nous pour une analyse DFM sur les dimensions critiques.
Matériaux que nous Usinons
Nous stockons et usinons 50+ métaux et plastiques techniques. Matériaux courants de fraisage CNC :
Finitions de Surface
Toutes les finitions de surface disponibles en interne.
Brut d'usinage
Ra 1.6–3.2 μm direct off the machine. Clean, functional surfaces with visible tool marks.
Anodisation (Type II & III)
Electrochemical oxide layer on aluminum. Type II decorative; Type III hard for wear resistance.
Anodisation Dure
Type III anodizing to 25–125 μm. Excellent hardness (60–70 HRC equivalent) and dielectric properties.
Sablage
Uniform matte texture, Ra 0.8–2.0 μm. Removes machining marks and improves aesthetics.
Peinture Poudre
Durable polymer finish in any RAL/Pantone color. Impact and corrosion resistant.
Électropolissage
Electrochemical surface smoothing. Reduces Ra by 50%, ideal for stainless steel medical parts.
Nickelage
Electroless or electrolytic nickel. Corrosion resistance, solderability, or as undercoat for chrome.
Gravure Laser
Permanent part marking — serial numbers, logos, QR codes. No mask or ink required.
Directives de Conception pour le Fraisage CNC
Ces directives vous aident à obtenir des devis précis et à garantir la fabricabilité de vos pièces.
- Minimum wall thickness 0.5 mm for metals, 1.0 mm for plastics — thinner walls vibrate during cutting and can deflect.
- Inside corner radius ≥ 1/3 of cavity depth — end mill diameter must fit the corner radius; design accordingly.
- Avoid deep narrow slots (depth > 6× width) — tool deflection and chip evacuation become critical beyond this ratio.
- Specify surface finish Ra only where functionally required — unnecessary finishing callouts add cost and lead time.
- Add draft to vertical walls only if needed for function — draft is for molding, not machining; omit unless necessary.
- Provide a 2D drawing for GD&T callouts and tight tolerances — model alone cannot convey datum references or geometric tolerances.
Besoin d'une Analyse DFM ?
Téléchargez vos fichiers CAO avec votre demande de devis. Nos ingénieurs fournissent une analyse DFM gratuite.
Demander une Analyse DFM GratuiteSecteurs Desservis
Nos capacités de fraisage CNC servent des applications exigeantes dans six secteurs.
Services Connexes
CNC Turning
Cylindrical & rotational parts, shafts, pins, bushings. ±0.005 mm standard.
5-Axis Machining
Single-setup complex geometry. Aerospace, medical and turbomachinery specialists.
All Capabilities
EDM, grinding, CMM inspection and full capacity overview.
Prêt à Usiner vos Pièces ?
Téléchargez vos fichiers CAO et recevez un devis de fraisage CNC détaillé en 24 heures. Sans quantité minimale.
Need turning too? If your part has both milled features (pockets, flats, cross-holes) AND a turned diameter or threaded shaft, run it through our combined milling-and-turning shop instead — one quote, one setup, tighter inter-feature tolerance.
See CNC Milling + Turning Services
