High speed steel circular saw blade is a cutting tool widely used in the field of metal cutting. Compared with traditional cutting tools, it has the advantages of fast cutting speed, high efficiency and high cutting precision. The tooth shape of the high-speed steel circular saw blade is one of the main factors affecting its cutting quality and efficiency.

The tooth shape of high-speed steel circular saw blades is generally divided into several types such as positive tooth type, helical tooth type and curved tooth type. Among them, the positive tooth type is the more common one.

The tooth peaks of the high-speed steel circular saw blades are in the shape of circular arcs, and the valleys of the teeth are in the shape of circular arcs. The  tooth type is characterized by smooth tooth peaks, flat cutting surface, and low cutting force, which is suitable for cutting metal materials with high hardness.

The helical tooth peak of the high-speed steel circular saw blade is inclined, and the tooth valley is V-shaped or circular arcs. The characteristic of the helical tooth type is that the tooth surface is inclined, and the cutting force is relatively large,which is suitable for cutting metal materials with high hardness,such as iron and steel.etc..

The tooth peaks and tooth valleys of the curved tooth type of high-speed steel circular saw blades are wavy. The characteristic of the curved tooth type is that the tooth pitch changes greatly and the cutting force is relatively large. It can cut hard metal materials, such as iron and steel.

It can be seen from the tooth profiles of the above three high-speed steel circular saw blades that the tooth profile directly affects the cutting quality and efficiency of high-speed steel circular saw blades. Different tooth shapes are suitable for different metal materials. When designing the tooth shape of high-speed steel circular saw blades, it is necessary to consider the nature of the material to be cut and the cutting requirements, so as to design a high-speed steel saw blade that is more in line with actual needs.