[mls]

I am new to insert cutters they did not use them anywhere I have worked
I mostly worked in a small 2 man shop with old machines.
8 months ago I purchased a 2006 haas vf 3 i have mostly done titanium with
standard carbide mills.
I bought a seco insert mill on ebay a while back uses insert XOMX120408TR-M12 T350 cutter is 2 flute 3/4 inch
seco tech told me 1018 steel 1100sfm .004-.005 feed per flute doc up to .300
sfm sounds high any help would be helpful also with different materials and
inserts I would like a guide to start from
thanks Mike

[Geof]

That sfm is on the high side but not completely unreasonable. If you dropped it to something around 400 to 500 you will get longer tool life but at the same time you do not remove as much material per minute so it is a play-off between cost of inserts and cost of time.

[dertsap]

if 1100 sfm is optimal for the tool , the insert life will most likely decrease at 400 sfm , .004 is a bottom chiplod for heavier cuts but at lighter loads i am sure your tool would handle a typical chipload up to .008 , so if they say .004 at .3 deep then you can probably easily run at .007-.008 at a lesser depth .
best this to do is run by specs , if they say to run it at x then run it at x

[mls]

thanks I will keep looking I am interested in learning more on insert cutters m
haas vf3 .235 doc 625 sfm .005 chip load per tooth chattered sometimes and seemwd rough on machine did not load spindle more than 50 or 60 %
I found that .1 doc 1100 sfm .008 chip load per tooth (5600 rpm 87 ipm)sounded great machine felt smmoth spindle load jumped up to 60-70 % in
full width cuts
I am curious how long inserts last cutting this 1018

[MikeOD]

You can probably push the depth of cut higher to bring the spindle load up closer to 100%...if the tool is nice and rigid and not chattering, the insert life will probably still be excellent.

I've been turning a lot of Titanium lately, and I've found the deeper cut and higher chip load on the roughing insert has actually made the insert hold up longer.

[cinomarra]

you may also want to checkout PROMAX carbide ruffing e'mills.they work great on titanium if you use their recommended speeds and feeds