The spiral angle of NC Spiral Cutter is an important design parameter and has a significant impact on cutting performance.
First, the helix angle affects the distribution of cutting forces. A smaller helix angle will make the cutting force more concentrated in the axial direction, while a larger helix angle will make the cutting force have larger components in both the axial and radial directions. During the machining process, if the cutting force is mainly concentrated in the axial direction, it may cause the vibration between the tool and the workpiece to be reduced, thereby improving the stability and surface quality of the machining. However, if the cutting force is too high, it may cause damage to the machine tool and the tool. On the contrary, a larger helix angle will increase the component of the cutting force in the radial direction, which may lead to increased wear of the tool, but can also improve cutting efficiency.
Secondly, the spiral angle will also affect the discharge of chips. A larger helix angle can make it easier for chips to be discharged from the cutting area, reducing the accumulation of chips between the tool and the workpiece, thereby lowering the cutting temperature and reducing tool wear. In addition, good chip evacuation can also improve the safety of processing and prevent chips from getting entangled on the tool or workpiece, causing accidents. On the contrary, a smaller helix angle may make it difficult to discharge chips, lead to increased cutting temperature, increased tool wear, and may even affect the processing quality.
In addition, the helix angle also affects the strength and rigidity of the tool. A smaller helix angle increases the strength and rigidity of the tool, thereby improving its durability. However, a smaller helix angle may also concentrate the cutting force in the axial direction, causing increased vibration between the tool and the workpiece, thereby reducing the stability and surface quality of the machining. Conversely, a larger helix angle may make the tool less strong and rigid, thereby reducing its durability. However, a larger helix angle can make the cutting force have larger components in both the axial and radial directions, which can improve the cutting efficiency.
In summary, the spiral angle of NC Spiral Cutter has a significant impact on cutting performance. When selecting the spiral angle, it is necessary to comprehensively consider factors such as processing materials, processing requirements, and machine tool performance to select the most appropriate spiral angle and improve processing efficiency and quality.
