Titanium peel mill

[alanu23]

Has anyone tried to peel mill in titanium? Say a slot, that is .564" wide 1.092" deep 2.153 long? I am planning on using a 1/2" Hanita varimill 5AN3 carbide endmill. Any one have any ideas on feed and speed? Stepover, and rounding radius? I'd like to run this to depth in one pass then finish the walls. Not too experienced with titanium however.

[Josh Kinney -Elite Engineering]

I do all the time. 350SFM - 0.025" Step - 75IPM - up to .125 Rounding Depnding on the machine and how rigid it is, you'll have to play with the rounding radius and backfeed.

[alanu23]

awesome! Thankyou!

[robh]

doesn't look like you'll have enough travel to lube your bearings using 1/2 em., only .064, less if you leave stock for a finish, do a search for peel mill, there have been reported problems with bearing failure on longer slots.. might be better to use 3/8..

[Mr. M]

Read this thread

[Odell]

If you have a lot of parts to cut put them in at a 45 deg. angle to keep your bearings lubricated.

[cobra95kev]

You could probably get away with a 3/8 endmill too.