I highly doubt this is aluminum and I personally find this video presentation quite impressive. Being a professional machinist and engineer, I believe this is a great example of some seriously fast and accurate chip removal :)
it looks like it wastes some time though... im not sure if thats due to programming and could be changed or not but i feel it could take other paths to shorten time
It is partly to demonstrate how quickly they can remove material with a small endmill. The troichoidal cutting extends the life of the tool tremendously versus slotting. They have another video machining some sort of steel that is way more impressive.
Then what is it? If you've made so many chips then the least you could do is tell all us "couch machinists" what looks, cuts and sounds exactly like aluminum?
Rob Graham I don't know what looks, cuts and sounds exactly like aluminum, but the piece being machined was steel. Watch after 4 minute marker and you can find a spark (aluminum doesn't do it) and you can see colored chips (which aluminum again doesn't do).
TheAimlessWarrior, care to explain how an earth aluminum sparks or makes oxidation colored chips which are both prominent features of steel but not aluminum? Unidal is just an aluminum alloy, which also doesn't spark or produce colored chips. To recap, all sorts of armchair machinist there are when they claim that that workpiece is aluminum. Best to make some chips first before commenting something stupid aloud.
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