Any high speed machining operation demands high quality carbide cutting tools. To attempt saving money on inferior end mills is setting yourself up for failure. Not only must the cutters be quality, but the spindle, CNC operating system, machine tool itself and toolholder, such as HSK, must be designed for HSM.
If any one of these components is lacking, the process will break down and fail. You just cannot take a conventional CNC mill and attach a high speed spindle and crank up the speeds and feeds. The entire process must be integrated in order to succeed.
Many HSM applications include fine details, such as those found in a complex plastic injection mold. The miniature end mills required must be able to stand up to the rigors of speeds such as 60K or higher. Many operators find that coated carbide end mills which are specifically designed for this purpose perform much better than uncoated.
Recommendations from leading carbide tooling manufacturers
The use of coolant in HSM with carbide
Using indexable cutting tools in HSM
A reputable manufacturer will have a specialist available to assist you and adequate videos and reading material to educate everyone concerned. Companies such as Sandvik, OSG, Ingersoll, Morse, Kennametal, Accupro, SGS and Widia have great resources available to teach you the ins and outs of high speed machining.
Another use for HSM is in woodworking. These CNC wood machines use carbide router bits to produce the moldings, dado and rabbet joinery, hand rails, tables, trim and even guitar components.
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