Best tool life you have had cutting Ti?

[oneyankfan1]

What is the best tool life any of you have had on endmills cutting 6al4v? What was the cutter and sfm? I have had a lot of sales people lately talk alot about the "latest and greatest" - gorilla mill, kennametal, 5m3(mag), etc.(snake oil probably) and wanted to see what everyone was doing.

[Guest]

I've had very good results with Destiny Raptor 3/6. I use Iscar's HEM Calculator for feeds and speeds (based on Destiny' "medium" cutting - as opposed to conservative or aggressive).

 

345SFM and feed depends on diameter of tool.

1" Tool @ 1.5" DOC @ 15% WOC = 2109 RPM and 99.2 IPM Feed.

 

Tool life will depend on many factors. Rigidity of the setup, quality of the tool holder, coolant concentration, interrupted cuts or not, etc...

 

Drop down to 10% Steopver and you're @ 2636RPM, 184.5 IPM. But this becomes a 33 HP cut.

[declfc]

Ive been cutting a lot of Ti Turbines lately, not easy to rough out in Ti as its mainly small gaps between the blades on the turbines, but the best cutters ive found for these have been Walter Titex cutters, (Great website + speed/Feed calculators) and Franken taper mills. (very expensive but seem to last for ever!) But I generally stick with Iscar and Walter.

[K2csq7]

I can get got 2 hrs out of a supermill at 400sfm. over and over and over and over again. 

[Newbeeee™]

I can get got 2 hrs out of a supermill at 400sfm. over and over and over and over again. 

Easy Tiger - you're a desk jockey now

[jslaero99]

1.0Ø cobalt VFP (variable face profile) from Niagara cutter: 50-60 sfm .004in/flutes *6 = 4.5in/minutes Ae=.75 Ap= 2.0 cutting time ±4hrs.

Kenna (cutter #BMD400R8605S125L250) 160sfm Ae 75% Ap .300-.500 at .007/flute cutting time ±90 min.

[jslaero99]

If I can add, there are many good cutters out there, it really depends on the application, they all have their strengths and weakness.

[mayday]

I got 10 minutes with a paperclip!

really? I would not disclose anything I do with my company. That is how we are were we are

[Bob W.]

I got 10 minutes with a paperclip!

really? I would not disclose anything I do with my company. That is how we are were we are

One of my customers wants me to quote a challenging Ti aeorspace part.  If I send you the CAD file can you look through similar parts you have done and send me the details (CAD file, tool speeds/ feeds, tool list, what you get for the parts $$$) of one you would consider to be the closest match?  Please be quick, I need to get the quote out Monday.  

[oneyankfan1]

just wondering, im getting 9.9 cubes mrr for about an hour with a .750 dia. so i was just seeing what anyone else has done.

[neurosis]

One of my customers wants me to quote a challenging Ti aeorspace part.  If I send you the CAD file can you look through similar parts you have done and send me the details (CAD file, tool speeds/ feeds, tool list, what you get for the parts $$$) of one you would consider to be the closest match?  Please be quick, I need to get the quote out Monday.  

 

 

We just got a quote in for 150lb Ti blocks that lose a lot of weight.  We could use the same help.  haha.  They gave us the quote Mon and want it today.

 

How long does it take to rough about 120lbs of Ti?  

 

Does anyone have experience with Hanita's WaveCuts?

 

 

I can get got 2 hrs out of a supermill at 400sfm. over and over and over and over again.

 

 

When we run ti on our HMC we usually shoot for 120minutes of tool life. We can mostly hit that consistently with good chip management.  We vary parameters depending on the advantage we happen to be taking of chip thinning at the time. This is with some cheapo YG carbide endmills.

[bogusmill]

This months issue of Modern Machine Shop Online has an article "The anatomy of an end mill for Titanium" on page 30. It should enlighten you on this subject and help with cutter choices.

[Sticky]

Is anyone here using the swifcarb coolant through endmills for Ti?

[Newbeeee™]

 

 

When we run ti on our HMC we usually shoot for 120minutes of tool life. We can mostly hit that consistently with good chip management.  We vary parameters depending on the advantage we happen to be taking of chip thinning at the time. This is with some cheapo YG carbide endmills.

We use a lot of YG's for stainless - great value for money