フライスカッターの種類と用途: 適切なカッターの選び方

Milling cutter types vary by shape, cutting edge design, フルート数, コーティング, tool structure, and machining purpose. Each cutter type works for a different CNC milling operation, such as slotting, facing, プロファイリング, 3D contouring, 荒削り, 仕上げ, thread machining, or abrasive material machining.

Choosing the right milling cutter type is important for tool life, surface finish, chip removal, 切削安定性, and machining cost. 例えば, machinists commonly use an end mill cutter for slotting and profiling, while they choose a ball nose end mill for curved surfaces and mold cavities.

したがって, this guide explains common types of milling cutters, their uses, tool structures, and selection tips for different CNC machining applications.

What Are Milling Cutter Types?

Milling cutter types refer to different cutter designs used for different machining tasks. Some cutters remove material quickly. Some create flat surfaces. Others machine slots, threads, 曲面, or special profiles.

CNC加工では, the cutter type should match the operation, ワーク材質, 機械剛性, and surface requirement. A wrong cutter type may cause poor surface finish, 振動, chip clogging, short tool life, or unstable machining.

For a general introduction, you can also read our フライスカッターガイド.

Milling Cutter Types by Tool Structure

Milling cutters can also be classified by tool structure. This is useful for buyers who need to compare cost, precision, replacement method, and production scale.

Solid Milling Cutters

Manufacturers make solid milling cutters from one complete tool body. Common materials include HSS and solid carbide. Machinists often choose them for precision machining, small-batch production, 金型部品, and applications that require good rigidity.

Solid carbide cutters are especially common in CNC machining because they offer better hardness, 耐摩耗性, and cutting stability than many general HSS tools. しかし, the tool should still match the workpiece material, コーティング, フルート数, and cutting parameters.

Indexable Milling Cutters

Indexable milling cutters use a reusable cutter body with replaceable carbide inserts. When the cutting edge wears, the operator can index or replace the insert instead of replacing the whole cutter body.

Factories often use this type for face milling, 肩削り加工, 激しい荒削り, and batch production. It can help reduce tool replacement cost in suitable applications, especially when machining larger parts or removing more material.

Brazed Milling Cutters

Brazed milling cutters use carbide tips brazed onto a steel body. Machinists often use them for general machining and some roughing applications.

Compared with solid carbide tools, brazed cutters can be more economical in some jobs. しかし, they are not always the best choice for high-speed machining, high-heat cutting, or applications that require frequent tool replacement.

Common Milling Cutter Types and Uses

The table below shows common milling cutter types and their main uses. It is useful for buyers, engineers, and machinists who want to compare different cutter options before choosing a tool.

For a broader range of tool options, 見る CNCフライスカッター.

Main Types of Milling Cutters

エンドミルカッター

An end mill cutter is one of the most common milling cutter types. It can cut from the side and the end of the tool, so it is suitable for slotting, プロファイリング, ポケットフライス加工, 輪郭を描く, そして肩削り加工.

End mills come in different flute counts, コーティング, 長さ, 超硬グレード. 例えば, 2 flute end mills are often used for aluminum because they provide more chip space. 対照的に, 4 flute end mills are often used for steel because they offer better rigidity and cutting stability.

For general CNC milling, 私たちのものを見る エンドミルカッター.

ボールエンドミル

A ball nose end mill has a round cutting tip. This cutter type is used for 3D contouring, 曲面, 金型キャビティ, die machining, そして精密な仕上げ.

Compared with a flat end mill, a ball nose cutter can follow curved tool paths more smoothly. しかし, it is not the best choice for sharp inside corners because the cutting tip is round.

For mold machining and curved surfaces, 選ぶ ボールノーズエンドミル.

ブルノーズエンドミル

A bull nose end mill is also called a corner radius end mill. It has a small radius on the cutting corner. This design improves corner strength and reduces chipping during machining.

Bull nose end mills are useful for semi-finishing, rough finishing, and machining materials such as steel and stainless steel. They are a good choice when a sharp square corner is not required, but stronger tool corners are needed.

For semi-finishing and stronger corners, 見る ブルノーズエンドミル.

Tスロットカッター

A T-slot cutter machines T-shaped slots and undercuts. These slots are common in machine tables, 備品, molds, and clamping systems.

Usually, an end mill first opens a straight slot. それから, the T-slot cutter creates the wider undercut shape. This process helps reduce tool load and improves machining stability.

For T-slot and undercut machining, use a Tスロットカッター.

サイドミーリングカッター

A side milling cutter cuts grooves, スロット, and side surfaces. It removes material from the side of the workpiece and works well for wider grooves or vertical side cutting.

This cutter type is often used in general machinery, fixture parts, mold components, and metalworking applications. しかし, the setup must be stable because side cutting can create higher cutting forces.

For groove and side surface machining, 見る サイドフライスカッター.

正面フライスカッター

A face milling cutter is used to machine flat surfaces. It is often used for large surfaces, machine bases, mold plates, fixture plates, and metal blocks.

Compared with a small end mill, a face milling cutter can cover a wider cutting area. したがって, it is suitable when the workpiece needs a clean, flat, and consistent surface before the next machining step.

For large flat surface machining, 見る フェイスミーリングカッター.

スレッドミーリングカッター

A thread milling cutter machines internal or external threads on CNC machines. It can be useful when the part needs accurate threads, different thread sizes, or better control than traditional tapping.

Thread milling also helps reduce the risk of tap breakage in some difficult materials. しかし, it requires proper CNC programming and a stable machining setup.

For precision thread machining, 見る ねじ切りカッター.

ラフィングエンドミル

A roughing end mill is designed for fast material removal. It usually has a special cutting edge design that breaks chips into smaller pieces and reduces cutting pressure.

This cutter type is often used before finishing. It removes extra material quickly and prepares the part for a smoother final surface. しかし, roughing end mills are not usually used when the final surface finish is the main requirement.

For fast stock removal before finishing, 選ぶ ラフィングエンドミル.

Diamond-Coated End Mill

Diamond-coated end mills are used for graphite, CFRP, 複合材, and other abrasive materials. These materials can wear normal cutting edges quickly, so coating selection is very important.

Diamond coating can improve wear resistance and help extend tool life in graphite machining. しかし, the tool should still match the workpiece material, 切断パラメータ, そして機械の状態.

For graphite and abrasive materials, 選ぶ ダイヤモンドコーティングエンドミル.

How to Choose Milling Cutter Types by Operation

Different machining operations need different cutter types. したがって, you should choose the cutter based on the cutting task first.

Cutter Type for Slotting

End mill cutters are usually the most common choice for slotting. In aluminum machining, a 2 flute end mill often works well because it provides more chip space.

When cutting steel slots, machinists may choose a 2 フルートとか 4 flute tool depending on slot depth, 冷却剤, と機械剛性.

Cutter Type for Steel Machining

Steel needs stronger cutting edges and better tool rigidity. このため, a 4 flute end mill is often used for general steel milling, プロファイリング, and side milling.

加えて, coated carbide tools can improve heat resistance and tool life.

Cutter Type for Finishing

Finishing requires stable cutting and better surface quality. したがって, many machinists choose 4 フルートとか 6 flute end mill tools when chip evacuation is not a major problem.

A higher flute count can improve surface finish, but the tool must match the machine rigidity and cutting parameters.

How to Choose Milling Cutter Types by Material

Workpiece material also affects cutter selection. A cutter type that works well for aluminum may not work well for stainless steel or graphite.

When choosing a cutter type, do not only compare price. その代わり, ワーク材質を確認してください, 切込み深さ, tool length, コーティング, フルート数, and surface finish requirement.

For high-performance carbide tools, 見る 超硬エンドミルカッター.

Milling Cutter Types Selection Checklist

Before choosing a milling cutter type, check these points:

要するに, the best milling cutter type depends on both the material and the machining operation. A suitable cutter can reduce tool wear, improve surface finish, and make CNC milling more stable.

FAQ About Milling Cutter Types

What are the main types of milling cutters?

Common milling cutter types include end mill cutters, ボールノーズエンドミル, bull nose end mills, Tスロットカッター, サイドフライス, face milling cutters, thread milling cutters, ラフィングエンドミル, and diamond-coated end mills.

They can also be classified by tool structure, such as solid milling cutters, indexable milling cutters, and brazed milling cutters.

What is the most common milling cutter type?

The end mill cutter is one of the most common milling cutter types. It is widely used for slotting, プロファイリング, ポケットフライス加工, 肩削り加工, and general CNC machining.

一般的なフライス加工用途向け, 見る エンドミルカッター.

Which milling cutter type is used for slots?

End mill cutters are commonly used for straight slots. For T-shaped slots, a T-slot cutter is used after the first straight slot is opened.

For special slot machining, 見る Tスロットカッター.

Which milling cutter type is used for curved surfaces?

Ball nose end mills are used for curved surfaces, 金型キャビティ, 3D contouring, and die machining. Their round tip can follow complex tool paths and create smooth curved surfaces.

For 3D surface machining, 選ぶ ボールノーズエンドミル.

Which milling cutter type is used for flat surfaces?

Face milling cutters are often used for large flat surfaces. End mills can also machine smaller flat areas when more flexible tool movement is needed.

What is the difference between solid and indexable milling cutters?

Solid milling cutters are made from one complete tool body and are often used for precision machining, small-batch production, and smaller tool sizes.

Indexable milling cutters use a reusable cutter body with replaceable inserts. They are often used for larger tools, 正面フライス加工, 荒削り, and batch production.

How do I choose the right milling cutter type?

初め, confirm the machining operation. それから, ワーク材質を確認してください, required surface finish, 切込み深さ, 機械剛性, コーティング, フルート数, tool structure, and tool size.

If the job involves abrasive materials such as graphite, diamond-coated tools may be a better choice. If the job requires large flat surface machining, a face milling cutter may be more suitable. For general slotting and profiling, an end mill cutter is often the first option.

結論

Milling cutter types include end mill cutters, ボールノーズエンドミル, bull nose end mills, Tスロットカッター, サイドフライス, face milling cutters, thread milling cutters, ラフィングエンドミル, and diamond-coated end mills. They can also be classified by tool structure, such as solid, indexable, and brazed milling cutters.

Each cutter type has a different function, so the right choice depends on the machining operation, ワーク材質, machine condition, surface requirement, and production quantity.

For general CNC milling, many factories start with an end mill cutter because it is suitable for slotting, プロファイリング, そしてポケットフライス加工. For abrasive materials such as graphite and CFRP, diamond-coated end mills are usually a better choice because they offer better wear resistance.

If you are not sure which milling cutter type is suitable for your application, send us your workpiece material, 機械加工作業, 工具サイズ, コーティング要件, and drawing. We can help you choose a suitable milling cutter or provide a custom tool solution.

A wider product range is available in our CNCフライスカッター.