Gallery, Projects and General > How do I??

Milling Titanium

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DaveH:
Hi,
Has anyone done any milling of Titanium.

I’ve cut it on the lathe using HSS cutters (sharp) – not too problematic. (Apart from the occasional fire) :doh:

Milling it however, I just could not get it to cut properly.  :hammer:

Small grooves only .003” deep using a 1mm dia mill. I even tried with some engraving cutters, still not successful.

Anyone done it, and would you like to share the secret. :bow:

 :beer:

DaveH

John Stevenson:
Depends on grades,
I make some pump shafts out of Titanium as it's the only thing ferric chloride won't eat. I buy grade 2 as it's the best I have found for machining [ and the cheapest ] It machines a lot like stainless, milling and turning is OK but drilling and tapping can be a pain as it wants to grab and work harden.

Was given a bit of grade 9 for a job and it was harder than a witches tits.

John S.

DaveH:
John S,

Seems like you and me are the only ones here. :D

 :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol:

--- Quote from: John Stevenson on June 12, 2011, 06:05:07 PM ---Was given a bit of grade 9 for a job and it was harder than a witches tits.
John S.

--- End quote ---

WHOT! - sure you are alowed to say that? :D :D :D

DaveH

doubleboost:
I have a friend who makes titanium exhausts for racing cars i have seen them milling manifold flanges .
It seems to machine like stainless . Iwill ask them what grade ect
Not machined any witches tits but i would think lots of cutting fluid would be needed  :doh: :doh: :doh:

spuddevans:
I have milled titanium, what I've found works best is to use carbide cutters, or if using hss, don't let the cutter rub as the stuff I have work hardens in the blink of an eye. I use light cuts, but that may be down to my mill being a little more flexible than I'd like.

The smallest size of cutter I've used is a 2mm carbide, and I have also used a carbide V-point for engraving using extremely shallow cuts, with a little bath of thin cutting oil.

Tim

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