Poor Surface Finish in CNC Machining? You Might Just Need the Right Rainbow U Type End Mill for Aluminum

When CNC machining aluminum alloy parts, many companies face a common problem - the surface roughness and smoothness of the workpiece do not meet the standards. Although the equipment is high-speed and stable with reasonable parameter settings, the finished product always has small burrs or surface scratches? At this point, you may want to check if you have selected the right tool.

The aluminum rainbow U-shaped knife launched by AMG is designed to solve the "smoothness problem" in aluminum alloy processing. It adopts a blade geometry design specially customized for aluminum materials, with light cutting and low vibration, which can greatly reduce cutting marks and surface pressure damage. At the same time, the large U-shaped groove structure ensures that chips can be quickly discharged, effectively preventing scratches caused by repeated cutting or chip sticking.

It is worth mentioning that its surface is coated with a low friction coefficient rainbow coating (such as TiB ₂), which can significantly reduce aluminum adhesion, improve machining surface smoothness, and extend tool life.
Whether it's 3C shells, radiators, mold cavities, or automotive aluminum alloy structural components, AMG colorful U-shaped knives can bring a more efficient and cleaner processing experience. Many customers have provided feedback after use: the surface effect immediately improved after changing the tool.

Don't be troubled by 'insufficient smoothness' anymore, perhaps what you really lack is a professional tool suitable for aluminum processing.