End milling cutter specifications

End mills come in a variety of specifications to meet different processing needs. The following is a detailed description of the opposite milling cutter specifications:

First, diameter specifications

End mills have a wide range of diameter specifications, usually ranging from a few millimeters to tens of millimeters, and the specific specifications vary by manufacturer and application scenario. For example, common end milling cutter diameter ranges are:

Straight shank end mill: diameter is generally 2~20 mm, suitable for smaller diameter end mill.

Taper shank end mill: the diameter is generally 14~50 mm, suitable for large diameter end mill.

Special specifications: Part of the end milling cutter diameter up to 100 mm or larger, for the processing of large workpieces.

Second, length specifications

The total length of the end mill and the length of the cutting edge also vary according to the machining needs. Generally speaking, the total length of the end mill includes the shank and the cutting edge part, and the cutting edge length directly affects the machining depth. For example, the total length of some end mills can reach hundreds of millimeters, while the cutting edge length is between tens of millimeters and hundreds of millimeters according to processing needs.

Third, number of teeth specifications

The number of teeth of the end mill is also one of the important specification parameters. The number of teeth directly affects the cutting efficiency and machining surface quality. Generally speaking, the number of teeth of the coarse-tooth end mill is less, which is suitable for the processing of large cutting amount; The fine tooth end mill has more teeth, which is suitable for small cutting amount processing. The exact tooth range varies by manufacturer and tool type. For example, the number of teeth of the common coarse end mill has 3 to 4 teeth, while the number of teeth of the fine end mill has 5 to 8 teeth, and the number of teeth of the shell structure end mill can reach 10 to 20 teeth.

Fourth, screw Angle specifications

The helix Angle is the Angle between the cutting edge and the axis of the end mill, which has an important effect on the cutting performance. The size of the spiral Angle determines the sharpness of the cutting edge and the chip removal performance. Common end milling cutter helix Angle specifications are:

Coarse-tooth end milling cutter: the spiral Angle is generally 40°~45° to increase the sharpness of the cutting edge and chip removal performance.

Fine-tooth end milling cutter: the spiral Angle is generally 30°~35° to improve the quality of the machined surface.

Shell structure end mill: helix Angle is small, generally 15°~25°, to adapt to special processing needs.

Fifth, other specifications

In addition to the above main specifications, the end mill also has the following specifications:

Handle form: divided into straight handle and cone handle two kinds. Straight shank end mills are suitable for smaller diameter tools, while taper shank end mills are suitable for larger diameter tools.

Material: The material of the end mill is usually high-speed steel or cemented carbide to adapt to different processing needs. Carbide end milling cutter has higher hardness and wear resistance, suitable for processing high hardness materials.

Coating: Part of the end mill surface is coated to improve the wear resistance, heat resistance and lubrication of the tool. Common coating materials are titanium nitride (TiN), aluminum titanium nitride (AlTiN) and so on.

Sixth, specification expression method

Specifications for end mills vary from manufacturer to manufacturer, but generally include the following information:

Diameter: Indicates the diameter of the end mill, usually in millimeters (mm).

Length: Indicates the total length or cutting edge length of the end mill, usually in millimeters (mm).

Number of teeth: indicates the number of teeth of the end mill.

Shank form: indicates the shank form of the end mill, such as a straight shank or a taper shank.

Material: Indicates the material type of the end mill, such as high speed steel or carbide.

Coating: If there is a coating, indicates the type of coating material.

For example, the specification of a straight shank end mill may be expressed as “diameter 12mm, total length 96mm, medium teeth, straight shank, high-speed steel”.

In summary, the specifications of end milling cutter are diverse, and the user should consider the specific processing needs, workpiece materials, machine tool performance and other factors when choosing.