Date:

23/06/25

End milling cutter is a widely used multi blade tool in CNC machining, which can process flat surfaces, step surfaces, grooves, etc. The milling speed of the end mill is high and there is no clearance, so it is a high-efficiency cutting tool. The geometric structure of a milling cutter is very complex, and the overall structure of an end milling cutter can be divided into three parts: the blade, neck, and shank. The blade is the most important part of the entire cutting tool, and its material, shape, and number of teeth determine its machining performance. The cutting edge on the cylindrical surface of the end mill is the main cutting edge, and the secondary cutting edges are distributed on the end face; The handle is the clamping part of the cutting tool, which is used to connect with the machine tool and transmit torque during milling. Its shape determines the size of the blade diameter; The neck is the part that connects the blade and the handle. The blade is the most complex part of an end mill, therefore, the key to 3D modeling of an end mill is to model the blade. The main structure of the blade is a spiral entity, which can be obtained by scanning and cutting the generated cylinder with the vertical section of the spiral groove as the contour and the combination curve of the spiral line and a tangent line as the path, forming a spiral entity. The shank of end mills is generally divided into two categories: straight shank and tapered shank. The positioning and installation of straight shank end mills are relatively convenient. For small diameter end mills, the straight shank type is widely used.

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