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first..........what are you machining? titanium or cast iron????? you mention both.
next titanium is usually machined with uncoated insert.
cast iron is usually machined w/a coated insert.
now as far as your chips.......are you drilling/milling/turning/ threading?
im not at home so i have none of my sandvik bibles here. go to sandvik coromant.com and all the answers are there.
now back to chip problem. what kind of coolant? oil? water soluable? more than likely water soluable unless your on a swiss cnc making itty bitty parts. in the case of water soulable i would add more coolant spray volume.
color of chip will tell you alot.
curl on chip will tell you alot.
since its sand like, it sounds like very light cuts.
bottomline: you must always remove chips to allow carbide to last. you do not want to recut chips over and over. bad for carbide life, bad for part when you crash.
hope that helps.
also check out iscar.com/mitsubishi.com./kennametal.com etc.
twist the territory salesmans nuts. bypass the local distributor. if that doesnt work get regional mgr. involved.
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