rickseeman
Cast Iron
- Joined
- Oct 7, 2014
I need to drill a 3/8" hole in 2" thick 6AL4V titanium. What kind of drill bit do I need for this? Thank you.
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What drill bit to use on titanium?
- Thread starter rickseeman
- Start date
- Replies 25
- Views 21,864
Booze Daily
Titanium
- Joined
- Sep 18, 2015
- Location
- Ohio
Any quality drill should be fine. Run it slow, keep it cool, peck alot.
Limy Sami
Diamond
- Joined
- Jan 7, 2007
- Location
- Norfolk, UK
What he said + don't let it rub, make sure it's cutting or it will work harden the Ti in a flash.
From my handy Clarkson Osborn cutter book HSS drill in Ti 16-30' / min, 165 - 300 ish rpm @ 0.005'' - 0.010'' / rev feed
G
guest
Guest
Cobalt drill, 135 or 140 deg. angle, 25 sfm.
rickseeman
Cast Iron
- Joined
- Oct 7, 2014
Is there a company that makes high quality drill bits? I hate to go to Harbor Freight and ask for a cobalt drill bit. Thanks
G
guest
Guest
If you're buying drills at harbor freight you should not be cutting titanium...
This should do the job:
YG-1: BEST VALUE IN THE WORLD OF CUTTING TOOLS
You can order from Suncoast
3/8 Jobber Length Cobalt TiN Drill
edit to add: I would recommend you spot that hole first with a 140 deg. spot drill.
1/2 14o ALTiN Carbide Chamfer Mill NC Spot Drill
Terry Keeley
Titanium
- Joined
- Oct 18, 2005
- Location
- Toronto, Canada eh!
These work well:
http://selector.dormertools.com/web...e-data-sheet.pdf/R10CO?searchaction=Technical
Flood coolant, lots of pecking and positive feed works in my experience.
http://selector.dormertools.com/web...e-data-sheet.pdf/R10CO?searchaction=Technical
Flood coolant, lots of pecking and positive feed works in my experience.
DMF_TomB
Diamond
- Joined
- Dec 13, 2008
- Location
- Rochester, NY, USA
you can easily spend over $100 on one drill bit and still break it in less than 1 minute
.
just saying the most expensive drill is not necessarily the best drill to use
.
just saying the most expensive drill is not necessarily the best drill to use
True, but I don't want to find out I have a shitty drill 1" into a 2" deep hole.
DMF_TomB
Diamond
- Joined
- Dec 13, 2008
- Location
- Rochester, NY, USA
.
if a drill bit drills a hole 2" into steel in general it will drill into titanium. but i would watch out for chips sticking to flutes. that will definitely cause problems. coolant and pecking usually used
FredC
Diamond
- Joined
- Oct 29, 2010
- Location
- Dewees Texas
I worked in a screw machine shop where the boss had made the spacers for the 747 windshields. He had done thousands of them. He used good quality fast twist high speed drills modified by hand to thin the lands. One thing he said was you drill to size, do not even think of drilling undersize and following with a larger drill.
For the OP a standard off the shelf drill is probably good enough. If he was making thousands of holes modifying the drills would be important.
For the OP a standard off the shelf drill is probably good enough. If he was making thousands of holes modifying the drills would be important.
eKretz
Diamond; Mod Squad
- Joined
- Mar 27, 2005
- Location
- Northwest Indiana, USA
If you're breaking drills you are doing it wrong. Try the initial speed/feed combination for a short distance then CHECK the cutting edges. One who doesn't monitor cutting edges on any cutting tool should be regarded as an amateur. A drill should never break unless the operator makes a stupid mistake and/or is drilling some seriously vicious material. I can count the number of good quality drills I've broken over 25 years on one hand.
No one is asking the O.P. to buy the most expensive drill he can find. Just don't use a piece of shit from Harbor Freight, but a decent quality brand.
No one is asking the O.P. to buy the most expensive drill he can find. Just don't use a piece of shit from Harbor Freight, but a decent quality brand.
Screwmachine
Titanium
- Joined
- Mar 8, 2001
- Location
- Switzerland
Definitely my experience as well. And echoing limy's remark- it'll workharden in a flash. If you hear or feel that your drill is getting the least bit dull change it or sharpen it. You might be just a few seconds away from it all going south.
rickseeman
Cast Iron
- Joined
- Oct 7, 2014
Thank you all. I will take your advise.
trevj
Titanium
- Joined
- May 17, 2005
- Location
- Interior British Columbia
In other words, "He who hesitates, is lost!"
If you hear even the faintest squeak, Get the F**K out, NOW!, or misery will follow!
Ti. is great fun to work with, once you understand a few things about it. Mostly, it comes down to never a dull tool, and never let a sharp tool rub.
Larry Dickman
Titanium
- Joined
- Jan 30, 2014
- Location
- Temecula, Ca
Thanks, I needed a good laugh before calling it a day
Terry Keeley
Titanium
- Joined
- Oct 18, 2005
- Location
- Toronto, Canada eh!
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