Fraise de précision,Outils de coupe pour l’usinage CNC de chaque matériau
Milling cutters work as rotary cutting tools on milling machines and CNC machining centers. They remove material from a workpiece to create flat surfaces, machines à sous, poches, profils, holes, threads, and 3D shapes.
En usinage CNC, the correct milling cutter can improve cutting stability, état de surface, durée de vie de l'outil, and production efficiency. Cependant, different milling cutters have different shapes and functions. Donc, it is important to choose the right cutter based on the machining operation, matériau de la pièce à usiner, et exigence de surface.
Donc, this guide explains what milling cutters are used for, common milling cutter applications, and how to choose suitable CNC milling cutters for different machining needs.
À quoi servent les fraises?
Manufacturers use milling cutters to cut and shape materials such as steel, acier inoxydable, aluminium, fonte, cuivre, graphite, and engineering plastics. They can perform many machining operations, from rough material removal to precision finishing.
En général, common milling cutter uses include:
| Milling Cutter Use | Common Tool | Typical Application |
| Facing | Fraise à surfacer, Fraise en bout | Flat surfaces and machine bases |
| Rainurage | End mill cutter, Fraise à rainure en T | Straight slots, Fentes en T, rainures de clavette |
| Profilage | End mill cutter | Side walls, contours, poches |
| 3D Contournage | Ball nose end mill | Mold cavities and curved surfaces |
| Semi-finition | Bull nose end mill | Stronger corners and better tool life |
| Ebauche | Roughing end mill | Fast material removal |
| Thread machining | Thread milling cutter | Internal and external threads |
| Hole support | Drill bit, drill mill, reamer | Pre-drilling and hole finishing |
For general CNC slotting, profilage, et fraisage de poches, many factories use an Fraise en bout.
For a broader range of CNC cutting tools, you can also check Fraises CNC.
Main Applications of Milling Cutters
Facing Flat Surfaces
Facing is one of the most common milling operations. It creates a flat surface on the top of a workpiece. This operation is often used for mold bases, pièces de machines, plaques de fixation, and metal blocks.
Machinists usually choose face milling cutters for large flat areas. Cependant, end mills can also perform facing on smaller parts or when the machine setup requires more flexibility.
Par conséquent, facing is useful when the workpiece needs a clean, flat, and accurate surface before the next machining step.
Slotting and Groove Milling
Milling cutters are also used for slotting and groove milling. In this operation, the cutter removes material to create straight slots, rainures de clavette, Fentes en T, ou rainures.
Many machinists use end mills for straight slots. For special T-shaped slots, first use an end mill to open the straight slot. Alors, use a T-slot cutter to create the undercut shape.
For T-slot and undercut machining, voir Fraise à rainure en T.
Profiling and Side Milling
Profiling means cutting along the side of a workpiece to create a shape, contour, or outside edge. Side milling also removes material from the side surface.
End mill cutters are commonly used for these operations because they can cut from the side and the end of the tool. En outre, they are suitable for pockets, épaules, parois latérales, et fraisage CNC général.
For steel, aluminium, et usinage de l'acier inoxydable, an end mill cutter for CNC milling is a practical choice.
3D Contouring and Mold Machining
For curved surfaces, cavités de moule, et des formes 3D complexes, Mold shops often choose ball nose end mills for curved surfaces and mold cavities. Their round cutting tip can follow curved tool paths and create smoother surfaces.
This makes them useful in mold making, die machining, usinage d'électrodes de graphite, and precision parts manufacturing. Cependant, ball nose tools are not the best choice when the part requires sharp inside corners.
For curved surfaces and mold cavities, choose fraises à bout sphérique.
Semi-finishing and Corner Strength
Some machining operations need stronger tool corners. Dans ce cas, bull nose end mills, also called corner radius end mills, are a good choice.
A bull nose end mill has a small radius on the cutting corner. This radius helps reduce chipping and improves tool strength. Donc, it is often used for semi-finishing, rough finishing, and machining steel or stainless steel parts.
For stronger corners and semi-finishing, voir fraise à nez arrondi.
Roughing and Fast Material Removal
Roughing removes a large amount of material before finishing. The goal is not to create the final surface, but to remove stock quickly and prepare the part for later machining.
Roughing end mills usually have special flute designs that break chips into smaller pieces. This can reduce cutting pressure and improve chip evacuation.
Cependant, roughing tools should match the machine rigidity, matériau de la pièce à usiner, tool holder, and cutting parameters. Sinon, vibration and tool wear may increase.
Milling Cutter Uses by Tool Type
Different cutter types are designed for different machining jobs. The table below gives a simple comparison.
| Type de coupeur | Utilisation principale | Idéal pour |
|---|---|---|
| Fraise en bout | Rainurage, profilage, fraisage de poche | Fraisage CNC général |
| Fraise à bout sphérique | 3D contouring and curved surfaces | Mold and die machining |
| Fraise à nez arrondi | Semi-finishing and corner strength | Steel and stainless steel |
| Coupe-rainure en T | T-slots and undercuts | Fixtures and machine tables |
| Fraise de surfaçage | Flat surface machining | Large surface finishing |
| Fraise latérale | Side cutting and grooves | Slots and side surfaces |
| Fraise à fileter | Thread machining | Internal and external threads |
| Diamond-Coated Cutter | Abrasive material machining | Graphite and composites |
How to Choose CNC Milling Cutters by Material
En outre, material is one of the most important factors when choosing CNC milling cutters. A cutter that works well for aluminum may not work well for stainless steel or graphite.
| Matériau de la pièce | Suggested Cutter | Raison principale |
|---|---|---|
| Aluminium | 2 flûte ou 3 fraise à cannelure | Meilleure élimination des copeaux |
| Acier | 4 fraise en bout de carbure de cannelure | Better stability |
| Acier inoxydable | Fraise en carbure revêtue | Meilleure résistance à la chaleur et à l’usure |
| Graphite | Diamond-coated end mill | Durée de vie de l'outil plus longue |
| Acier trempé | Outil en carbure revêtu haute performance | Tranchant plus fort |
| Plastic | 1 flûte ou 2 outil de flûte | Reduces chip clogging |
Milling Cutters for Aluminum
L'aluminium est mou, mais il peut coller au tranchant si l'élimination des copeaux est mauvaise. Donc, 2 flûte ou 3 flute end mills are often used for aluminum machining.
These tools provide more chip space and help remove chips from the cutting area. En outre, sharp cutting edges and polished flutes can improve cutting stability.
For aluminum slotting and soft materials, choose 2 fraise à cannelure.
Milling Cutters for Steel
Steel needs stronger tool rigidity and stable cutting performance. Pour cette raison, Many factories choose 4 flute carbide end mills for steel milling.
UN 4 flute design provides more cutting edges and better tool strength than a 2 flute cutter. Par conséquent, it is suitable for side milling, profilage, finition, and general steel machining.
For steel and general CNC milling, voir 4 fraise à cannelure.
Milling Cutters for Stainless Steel
Stainless steel can generate heat and work harden during machining. Donc, le couteau doit avoir un bord tranchant, revêtement approprié, and stable flute design.
Dans de nombreux cas, coated carbide milling cutters are better than uncoated tools. Cependant, coolant, tool holding, rigidité de la machine, and cutting parameters are also important.
For high-performance carbide tools, voir Fraise en carbure de bois.
Milling Cutters for Graphite
Le graphite est abrasif, so tool wear is a major issue. Dans ce cas, diamond-coated milling cutters can improve wear resistance and extend tool life.
Diamond-coated end mills are often used for graphite electrodes, usinage de moules, and other abrasive material applications.
Pour l'usinage du graphite, choose diamond-coated end mills.
How to Choose Milling Cutters by Machining Operation
Besides material, Besides material, the machining operation also affects cutter selection. Donc, you should choose the cutter based on the cutting task.
| Opération d'usinage | Recommended Cutter | Selection Tip |
|---|---|---|
| Rainurage | End mill cutter | Use enough chip space |
| T-slot machining | Fraise à rainure en T | Open the slot first with an end mill |
| Facing | Face mill or end mill | Choose based on surface size |
| Profilage | End mill cutter | Check flute length and rigidity |
| 3Contournage en D | Ball nose end mill | Use for curved surfaces |
| Semi-finition | Bull nose end mill | Better corner strength |
| Finition | 4 flûte ou 6 fraise à cannelure | Better surface finish |
| Graphite machining | Diamond-coated end mill | Better wear resistance |
Finishing requires stable cutting and a better surface finish. Donc, many machinists choose 4 flûte ou 6 flute end mills when chip evacuation is not a major problem.
For finishing and stable side milling, voir 6 fraise à cannelure.
For Custom CNC Machining
Some parts require special diameters, longer flute lengths, revêtements spéciaux, or non-standard shapes. Dans ce cas, custom milling cutters may be required.
If standard tools cannot meet the drawing or material requirement, you can consider custom CNC milling cutters based on the part design and machining condition.
Milling Cutter Selection Checklist
Before choosing a milling cutter, check these points first:
| Point de sélection | Que vérifier |
| Matériau de la pièce | Aluminium, acier, acier inoxydable, graphite, plastique |
| Opération d'usinage | Rainurage, facing, profilage, ébauche, finition |
| Type de coupeur | End mill, nez sphérique, bull nose, Fraise à rainure en T |
| Matériau de l'outil | HSS, carbure, coated carbide, diamond-coated carbide |
| Nombre de flûtes | 2 flûte, 3 flûte, 4 flûte, 6 flûte |
| Revêtement | TiAlN, Or, Contenu téléchargeable, diamond coating |
| Tool Size | Diamètre, longueur de flûte, diamètre de la tige, longueur totale |
| Machine Condition | Rigidité, vitesse de broche, tool holder |
| Exigence de surface | Ebauche, semi-finition, finition |
In short, the best cutter is not always the cheapest cutter. A suitable tool should match the material, cutting operation, état de la machine, and required surface finish.
Common Mistakes When Using Milling Cutters
Cependant, choosing or using the wrong milling cutter can reduce tool life and machining quality. Below are some common mistakes.
| Mistake | Possible Problem | Better Choice |
| Using too many flutes for aluminum slotting | Chip clogging and heat | Utiliser 2 flûte ou 3 flute tools |
| Using weak tools for steel side milling | Vibration and poor finish | Use rigid carbide cutters |
| Ignoring coating | Faster tool wear | Match coating to material |
| Using long flute length when not needed | Tool deflection | Use the shortest suitable flute length |
| Choosing only by price | Higher total machining cost | Choose by material and operation |
Par conséquent, correct cutter selection can help reduce tool wear, improve surface finish, and make machining more stable.
FAQ About Milling Cutter Uses
What are milling cutters mainly used for?
Milling cutters are mainly used for facing, rainurage, profilage, fraisage de poche, contouring, ébauche, finition, and thread machining. They help remove material and shape parts on milling machines and CNC machining centers.
Which milling cutter is used for slots?
End mills are commonly used for straight slots. For T-shaped slots, a T-slot cutter is used after the first straight slot is opened.
For slot and undercut machining, voir Fraise à rainure en T.
Which milling cutter is used for flat surfaces?
Face milling cutters are commonly used for large flat surfaces. End mills can also be used for smaller flat areas or when more flexible machining is needed.
What is the difference between milling cutters and end mills?
A milling cutter is a general name for many types of rotary cutting tools used in milling. An end mill is one type of milling cutter. Autrement dit, all end mills are milling cutters, but not all milling cutters are end mills.
Are CNC milling cutters different from normal milling cutters?
CNC milling cutters are designed for use on CNC machining centers. They often need better precision, stable tool holding, revêtement approprié, and consistent cutting performance. Cependant, the basic cutting function is still material removal.
For CNC machining applications, voir Fraises CNC.
How do I choose the right milling cutter?
D'abord, vérifier le matériau de la pièce à usiner. Alors, confirm the machining operation, such as slotting, facing, ébauche, ou finition. After that, choose the cutter type, nombre de flûtes, revêtement, taille, and tool material based on the cutting condition.
Conclusion
Milling cutters are used for many CNC machining operations, including facing, rainurage, profilage, fraisage de poche, 3Contournage en D, ébauche, finition, and thread machining. Each cutter type has a different function, so the right choice depends on the material, méthode de coupe, état de la machine, et exigence de surface.
In general CNC machining, many factories start with an end mill cutter,because it supports slotting, profilage, et fraisage de poches. When machining curved surfaces or mold cavities,fraises à bout sphérique are a better choice.To make T-slots and undercuts, first open the slot with an end mill, and then use a Fraise à rainure en T to create the final shape. En outre, graphite and other abrasive materials usually need diamond-coated end mills.for better wear resistance.
If you need milling cutters for production or custom CNC machining, Cutterbest can support different tool types, la flûte compte, revêtements, sizes, et exigences OEM.
For general CNC milling, voir notre Fraise en bout.
You can also see more tool options from our Fraises CNC.
Pour l'usinage du graphite, choose diamond-coated end mills.