rghing endmill in titanium

[cherokeechief79]

ive gotta do some titanium rghing on my latest project.ive gotta go thru about a 1/2 inch thickness.

the width is about 5/8 that has to come off.i was going to use some specially coated carbide cutters I bought but now im thinking of just going with one pass close to the finish diameter at the full depth at a much slower speed and feed like I normally would do in steel.

the part is only about 7 inches long and about 2 in wide.

the mat is titanium that was 3d printed in our laser printer.

this is the 1st job ive done with any quantity to that we have printed.

got any opinions?

[THEE THAINZ™]

 Bang for the buck IMCO M706 series, if not try MA FORD Tuff Cut XR7 end mills. WALTER will be coming out possibly with a titanium line soon.

[cherokeechief79]

thanks but are these carbide high speed and feed mills or are they run at typical roughing mill speeds at full depth and widths?

[jeff]

thanks but are these carbide high speed and feed mills or are they run at typical roughing mill speeds at full depth and widths?

IMCO 706:

http://www.imcousa.com/EndMills/ByProductFamily/Omega/M706/M706-CR/30572

[Matthew Hajicek - Singularity]

I like to use cutters that come with a HFM speed and feed calculator:

 

http://www.1helical.com/index.php/milling-advisor

[THEE THAINZ™]

I run the IMCO and MA FORD both at 200-300 SFM and .0007-.0013 CPT. They can handle more under the right conditions but tool life starts to suffer. And yes this is running them in Titanium.

[guitar]

Why not dynamic, high-speed mill?

[jlw™]

Why print so much excess? Isn't that the point of additive machining? I digress, the imco is the best bargain in my opinion but I find the best tool life around 260sf but no more than you have to remove crank it up like suggested above.

[cherokeechief79]

the parts have to be printed in such a way that we can get the most parts from each build.its very expensive and we only have an 11 x 11 workspace.

this means parts have to be positioned in very specific orientations that are not optimal for post machining operations.

[betts]

Pay me now or pay me later.............................

 

I am certainly no expert on additive machining but if the material is going to be very close to 6Al-4V I wouldn't replicate steel speeds and feeds, not axial or radial cut depths.  That being said the advice above seems sound to me.

[guitar]

Pay me now or pay me later.............................

 

I am certainly no expert on additive machining but if the material is going to be very close to 6Al-4V I wouldn't replicate steel speeds and feeds, not axial or radial cut depths.  That being said the advice above seems sound to me.

 

HUH? What being said? I don't understand what you are saying. Are you just saying yes to be saying yes?

[cherokeechief79]

ill letcha know.  ill be sending a 3/4 carbide rougher through it in a few minutes at slow speeds and feeds.

this is what ive got at the moment.