Down milling and up milling
9 11月 2021 | 没有评论 | posted by admin | in Article
Most plane milling is done by up-milling on light-duty machine tools with lead screws or ball screws. However, down milling should be used as much as possible to achieve better processing results.
Because when up-milling, the blade produces strong friction before cutting, which causes the machined surface to harden, making it difficult for the next tooth to cut. When down milling, the milling width should be approximately equal to 2/3 of the cutter diameter,
This ensures that the blade can cut into the workpiece immediately from the beginning, with almost no friction. If it is less than 1/2 the diameter of the milling cutter, the insert starts to “friction” the workpiece again, because the cutting thickness becomes smaller when cutting in.
The feed per tooth will also be reduced due to the narrowing of the radial cutting width. The result of “friction” shortens the tool life. For cemented carbide tools, it is more advantageous to increase the feed per tooth and reduce the depth of cut.
Therefore, during rough milling, if the radial cutting width is smaller than the radius of the milling cutter, increasing the cutting amount will increase the tool life and shorten the machining time. Of course, finishing milling requires a smooth surface of the workpiece, so the amount of cutting should be limited
Single flute spiral knife (carbide)
5 11月 2021 | 没有评论 | posted by admin | in Article
Main function: two-dimensional cutting
Applicable materials: Acrylic, PVC, MDF
Features: Combining the advantages of single groove design with strong cutting force and smooth chip evacuation, and spiral blade cutting ensures the smoothness of the cut surface. It has excellent working efficiency in batch processing of PVC and MDF.
3D Carving Knife (Cemented Carbide)
4 11月 2021 | 没有评论 | posted by admin | in Article
Main functions: three-dimensional corner clearing, chamfering
Applicable material: organic, PVC. Can also be used for: MDF, medium hard wood
Matters needing attention: Regardless of whether it is engraving or reverse engraving, be sure to keep the engraving plane flat; it is very important to choose a suitable blade width for three-dimensional clear-angle engraving. It is recommended that the blade width of small-format engraving machine should not exceed 22mm, and the large-format engraving machine should be used. A tool with a suitable blade width can speed up the engraving speed.
