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Posted by Joe AutoDrill on July 28, 2008, 7:45 am
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What RPM are you running?
Using coolant?
Manual drill press or machine with a feed?
Regards,
Joe Agro, Jr.
(800) 871-5022
01.908.542.0244
Automatic / Pneumatic Drills: http://www.AutoDrill.com
Multiple Spindle Drills: http://www.Multi-Drill.com
V8013-R
> I've got some 1095/15n20 damascus steel I'm working on and while it grinds
> ok, I'm having trouble drilling it. I used a cobalt drill and a carbide
> center cutting end mill and neither one seems to be doing a good job.
> Even after I took the end I need to drill up to a dull red heat.
>
> Any suggestions?
>
** Posted from http://www.teranews.com **
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Posted by Todd Rich on July 30, 2008, 11:45 am
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> What RPM are you running?
> Using coolant?
> Manual drill press or machine with a feed?
> Regards,
> Joe Agro, Jr.
I was using 3/16" and slightly smaller bits at about 480RPM, using heavy
pipe thread cutting oil as a coolant/lubricant. Manual drill press.
1/2 (real) hp motor (claims it is a 3/4 hp).
Todd
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Posted by Joe AutoDrill on July 30, 2008, 12:30 pm
Please log in for more thread options >> What RPM are you running?
>
>> Using coolant?
>
>> Manual drill press or machine with a feed?
>
>> Regards,
>> Joe Agro, Jr.
>
> I was using 3/16" and slightly smaller bits at about 480RPM, using heavy
> pipe thread cutting oil as a coolant/lubricant. Manual drill press.
> 1/2 (real) hp motor (claims it is a 3/4 hp).
> Todd
Should have worked fine as long as the thrust was adequate at around 150-200
lbs. maximum and 100 minimum. Just guestimates.
Also, plenty of coolant as the tool can't possibly get red hot if there is
still liquid oil or coolant around it at that speed.
--
Regards,
Joe Agro, Jr.
(800) 871-5022
01.908.542.0244
Automatic / Pneumatic Drills: http://www.AutoDrill.com
Multiple Spindle Drills: http://www.Multi-Drill.com
V8013-R
** Posted from http://www.teranews.com **
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> ok, I'm having trouble drilling it. I used a cobalt drill and a carbide
> center cutting end mill and neither one seems to be doing a good job.
> Even after I took the end I need to drill up to a dull red heat.
>
> Any suggestions?
>