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Cutting Oil for Titanium
- Thread starter jcullen
- Start date
When I machine Ti, I use a lot of coolant to keep it raw and unhardened, Blaser Swisslube has a special Ti compound that will suit your application. Just do not ever let it harden as it will quench and harden easy.
Usually Ti is divided in three groups: Alpha, Alpha-Beta and Beta Groups. Please let me know which kind of Ti are you drilling and will look at my notes for Speed, Peck depth and coolant. As well as kind of drill bit material for it. Initially I suggest using M42 with 8% cobalt drill bits with Synthethic coolant in excess and if possible, through spindle coolant. If the rods you are drilling already have a hole, pump the coolant from behind to help push the swarf and chips out.
)If you are just drilling through the rod and not along the rod, you may use Olive oil with Cobalt drill bit, slow speed but heavy feed to keep the curl comming up all the way. If it ever stops comming out, retrieve the drill bit immediately, dont let it rub the surface. Let cool down and start with a hit.
Ok, from our formula:
320*18/5.56 = 1035 rpms, Feed should be 0.003" per Tooth, that is 2flutes*.003*1035= 6.21 Inches per minute
For that allow, start at 900 rpms and 5 inches per minute steady with lots of oil, If the swarf is golden you are cutting right, if it turns black, slow down. Give it a try and if it still burns and sticks, change the Bit to Cobalt.
You are very welcome, glad I could be of help. Let me know how it went.