Core benefits of the down cut end mill
What is a downcut end mill?
A downcut end mill, also known as a downward cutting end mill, is a type of end mill that applies a cutting force by discharging chips downward during the machining process. This unique cutting action distinguishes it from other types of end mills and provides certain advantages in specific applications.
Its spiral groove design uses the tool rotation, the chip is discharged downward, while the workpiece is pressed against the work table, reducing the risk of vibration and deformation.
downcut end mill is a cutting tool designed to optimize machining quality and stability. Its design features are different from conventional end mills. The main difference lies in the direction of cutting force and chip removal method.
Core benefits of the down cut end mill:
1、Reduce burrs: Downward discharge of chips to avoid chip friction on the processed surface, significantly reducing edge burrs.
2、improve stability: the downward cutting force enhances the fit between the workpiece and the workbench, and inhibits vibration.
3、suitable for thin material processing: such as aluminum plate, composite materials, etc., to prevent the stratification or deformation of materials.
down cut end mill and comparison with upper cut end mill
| peculiarity | down cut end mill | Upper cut end mill |
| Direction of cutting force | Press the workpiece down | Pull the workpiece up |
| Chip removal direction | Downward discharge | Upward discharge |
| Burr control | Excellent (less burrs on underside) | Poor (top surface prone to burrs) |
| Application scenario | Thin material, high surface quality requirements | Deep groove, high chip removal requirements |
Through the reasonable selection of the bottom end mill, you can achieve better quality and stability in precision machining, especially for deformation-sensitive materials and complex structural parts, such as processing 0.5mm thick aluminum mobile phone box, the use of the bottom end mill can effectively avoid material bending, while the groove bottom smooth without secondary polishing, significantly improve efficiency.
