Pushing the Limits with Light Cuts & Interrupted Cuts
We're taking a classic shoulder milling cut with a three-millimeter depth of cut for each pass and about 55% engagement of the cutter. We're running this at 240 meters per minute and a 0.35-millimeter feed rate per tooth.
Next, we're taking a cut through these interruptions here. Cutting speed remains the same but we're lowering the feed rate to 0.3 millimeters per tooth.
Now we're cutting the Swiss cheese. Cutting speed remains unchanged, but for this type of application the feed rate needs to be lowered further, and we're decreasing it to a 0.25-millimeter feed rate per tooth.
Holy smokes! Let's take a look at the inserts. Well, well, well... we got some of the inserts chipped with this cut. No surprise. Think about that. We started with a light cut, then we have taken them to the test with the interrupted cuts. So, the inserts took a little bit of a beating already, then the real heavy cut – not something you would typically do on your shop floor.