Optimal Surface Quality of 4-edge Unequal Spiral Milling Cutter

Changzhou Hongjian Tools Co.,ltd 4 flute endmills with different helix and variable pitch for general use with high removal rates for rough and finish operations. Its unique design features optimal flutes and tooth geometries, delivering maximum metal removal rates, and enables large chip gullets for efficient chip evacuation and high productivity on most material types.

Features:

· 6 to 20 mm diameters

· High removal rates

· 4 flute endmills with different helix and variable pitch

· Cylindrical and Weldon shanks

‌The main functions of the unequal helix angle end mill include improving the surface quality of the workpiece, enhancing the durability of the tool and cutting efficiency. ‌This milling cutter reduces the strength difference between the peripheral edges and suppresses the vibration during cutting, thereby improving the surface quality of the workpiece. In addition, the unequal helix angle design improves the overall strength and rigidity of the peripheral edge, allowing the tool to perform well in high-feed and high-cutting depth milling, extending the tool life and improving cutting efficiency. ‌

The design feature of the unequal helix angle end mill is that the blade width of each peripheral edge is equal on the plane orthogonal to the end mill's rotation axis, which helps to maintain the balance of strength and avoid the reduction of durability caused by excessive local wear. In addition, the unequal helix angle design changes the natural frequency of the tool vibration, helps to eliminate resonance, and further improves the surface accuracy of the workpiece.

In practical applications, the unequal helix angle end mill can adapt to the processing requirements of high feed and large cutting depth, providing more stable cutting performance and higher processing efficiency. This design is not only suitable for the milling of various curved surfaces and arc grooves, but also performs well in situations where high-precision processing is required.

The cutting edges of unequal helix angle end mills have different helix angles. Through cutting experiments, the cutting performance of asymmetric unequal helix angle end mills and traditional equal pitch end mills was compared, and the cutting performance of symmetrical unequal helix angle end mills was .The test results show that compared with traditional equal pitch end mills, unequal helix angle end mills significantly reduce vibration during the cutting process, and the cutting force of symmetrical unequal helix angle end mills is smaller than that of asymmetric unequal helix end mills. Angle end mills, when processing thin-walled parts, asymmetric unequal helix angle end mills can obtain better surface quality than ordinary unequal helix angle end mills