I took some pictures and measurements of the cuts I did the other day, hopefully attached here. [Test conditions, slots cut 4.8mm deep in 304 hot-rolled, going in from the end of plate:Ħmm diameter end mill solid carbide 4-flute (with cutting edges going almost to the centre on the end) about 25mm stick-out DOC 1.2mm chip load 0.049mm (or 0.002") per flute flood coolant. ![]() Results? Well, not much difference, except there is less difference in the surface finish between each side of the slot cut with the ramp angle than the 'normal' one. I read about CNC machines 'ramping in', which must be similar as far as the tool is concerned.Īnyway, I have just cut two slots, one normally (i.e with a vertial spindle axis), and one with a 5-degree ramp so the end face cuts about half of the DOC. Q: If you are forced to work with a long tool 'stick-out' and/or problematic material, is there any advantage to tilting the vertical head (say 5 degrees) so your end-mill cuts on its end as well as the periphery - I mean for roughing out? Firstly, Thanks to PM for saving me from quite a few broken tools where slotting operations are concerned.
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