Complex High Speed Milling Part

Ordinary milling processes use low feed rates and large cutting parameters, while high-speed milling processes use high feed rates and small cutting parameters. The spindle speed of high-speed milling is generally 15000r/min～40,000r/min, up to 100000r/min. When cutting steel, the cutting speed is about 400m/min, which is 5 to 10 times higher than traditional milling.

Conventional Machining will typically lead to a less accurate workpiece and inferior surface finish than could be achieved through high-speed machining.

Conventional machining differs greatly from High Speed Milling in a lot of aspects.

Use Dedicated Tools
It is important to have dedicated roughing and finishing tools in order to reduce tool wear between separate operations.
Keep Tooling Short
Machine tools are pushed to their limits for HSM. In order to obtain high accuracy, repeatability, and surface finish, fixtures and tools must be absolutely rigid to withstand the high loads associated with the process.
Balanced Tooling
Tool balance is important when running at high RPMs. Most common tool designs with tool holders will work without a noticeable problem at speeds less than 7,000 to 8,000 RPM. But, at higher speeds, you can start to see runout problems and decreased tool life. Shrink fit tooling is essential in order to maintain balance at high RPM.
A Clean Process
High Speed Milling generates chips faster than conventional milling. Use oil mist/air blast, or coolant (when necessary) in order to clear chips away to an appropriate chip management solution.

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