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How to find a good end mill?
End mills are widely used on the CNC machining centers. But what parameter is important to an end mill?
Find a reliable tool brand.
Reliable cutting tools brand is the short-cut for you to find a good tool, especially for newcomers.
We may find the top and popolar cutting tool brands by seaching cutting tool keywords in searching engines such as google, bing, yahoo, etc. We may go to their website and browsing their social medias easily now.
Tungstool is also a reliable cutting tool brand, especially in the solid carbide sector.
Try to get the information of the substrate
Substrate is the basic factor for the success of designing and manufacturing a good end mill, the machenical characteristics determine the mechanical and physical properties of the milling cutter, and the quality stability determings if you can buy cutting tools with equal quality every time.
Get the geometer of the tool
Geometry is another important factor of a good end mill. Tools with proper rake angle, relief angle, helix angle, web thickness and cutting length will perform the right material with desired efficency.
Check if the tolerance is good
Tolerance is everywhere factors in machining and also important when relating to the milling process.
The tolerance of the shank determines what kind of adaptor you can use. Usually a end mill with h5 tolerance shank can be mounted on a shink fit adaptor.
The tolerance of the cutting diameter is especially important for the machining centers with 5 and 6 axis, because excessive tool diameter tolerances will make it significantly more difficult for the machine to calculate the milling path, which can be fatal for complex parts.
Choose the right coating
Different coatings are related to different material groups to be machined. Common coatings are: PVD and CVD coating.