Yeah, cold roll is a lot easier to machine. Hot roll is a lot harder.
Try this: 1/2" solid carbide endmill, full DOC, 10-20% step over.
Going with a shallow DOC like that will wipe out the tip of that tool as that's all your using. Using more of the flute and a shallow step-over can increase tool life by removing more material without using the edge so much. At a .050 DOC, your only using 5% of your cutting edge that you paid for. Slow down to around 1000-1200 RPM. A lot of RPM's and feedrates being quoted are for CNC, diffrent story all together.
And yes, some people will refer to a BP as "floppy", but that is comparing to the high end CNC's of today. Night and day difference for sure, so is the price. For sure it is one of the most ridgid knee mills you can buy, an import would be a major step down.
Another thing you might want to do is rig an air line to blow those chips out while your cutting, or use a coolant mister, would help a lot, but the coolant tends to get messy. Either will help a lot.
MC  |