Quote:
Originally Posted by CarPsyco84
Depends on the material being cut, Aluminum can be cut for practically forever with the same carbide endmill... Stainless or other high nickel alloys... not so much. The reason the wheels might be expensive is the fact that you need a 5 axis CNC mill to do turbo wheels. And the number of hands the part goes through by the time it gets to the end user. Machining aluminium with the right tooling is like cutting butter with a steak knife.
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This isn't always the case either, yes when cutting aluminum the tooling will last longer, but the tooling will not last "forever" and sometimes not long at all. I work in a machine shop where we make aluminum cases for Polaris, Arctic Cat, Yamaha, Honda, etc....and we will end up changing some tooling whether its endmills, drills, facemill/bore head inserts, or whatever the tool may be every couple hundred to couple thousand parts. There are even some parts that may require a tool change ever couple part.
There are hardened steel shafts that get bored out by carbide inserts that can even last as long as a few hundred parts before a change is needed. Many many many factors.