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Posted by Todd Rich on July 26, 2008, 8:25 am
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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?
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Posted by Jim Wilkins on July 26, 2008, 12:38 pm
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> I've got some 1095/15n20 damascus steel I'm working on and while it grind=
s
> ok, I'm having trouble drilling it. =A0I used a cobalt drill and a carbid=
e
> center cutting end mill and neither one seems to be doing a good job. =A0
> Even after I took the end I need to drill up to a dull red heat.
>
> Any suggestions?
Are they dulling quickly or just not penetrating the metal? I've had
decent results with a HiRoc drill.
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Posted by Todd Rich on July 26, 2008, 2:13 pm
Please log in for more thread options > > 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?
> Are they dulling quickly or just not penetrating the metal? I've had
> decent results with a HiRoc drill.
Just not penetrating. However, I realized after I posted this that even
though the metal gets softer when you heat it up, it doesn't revert to
its pre-hard state until you get it past the critical temperature. I can
drill them now, but it still kind of rough.
I'll check out the HiRoc drills. Thanks!
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Posted by Ed Huntress on July 26, 2008, 2:31 pm
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>> > 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?
>
>> Are they dulling quickly or just not penetrating the metal? I've had
>> decent results with a HiRoc drill.
>
> Just not penetrating. However, I realized after I posted this that even
> though the metal gets softer when you heat it up, it doesn't revert to
> its pre-hard state until you get it past the critical temperature. I can
> drill them now, but it still kind of rough.
>
> I'll check out the HiRoc drills. Thanks!
If this works out for your job, you could try the old gunsmith's trick,
which is to chuck a nail with a rounded point in the drill press and heat
the spot with friction. You don't have to get it red -- going through all
the shades of blue will do it. Then you can drill it with a good HSS bit.
Of course, it depends on how thick the material is, and whether you can
tolerate softened edges on the hole.
--
Ed Huntress
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Posted by xman on July 26, 2008, 3:24 pm
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>
>>> > 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?
>>
>>> Are they dulling quickly or just not penetrating the metal? I've had
>>> decent results with a HiRoc drill.
>>
>> Just not penetrating. However, I realized after I posted this that even
>> though the metal gets softer when you heat it up, it doesn't revert to
>> its pre-hard state until you get it past the critical temperature. I can
>> drill them now, but it still kind of rough.
>>
>> I'll check out the HiRoc drills. Thanks!
>
> If this works out for your job, you could try the old gunsmith's trick,
> which is to chuck a nail with a rounded point in the drill press and heat
> the spot with friction. You don't have to get it red -- going through all
> the shades of blue will do it. Then you can drill it with a good HSS bit.
>
> Of course, it depends on how thick the material is, and whether you can
> tolerate softened edges on the hole.
>
> --
> Ed Huntress
>
done this will cheap bed frames, protype, etc...
use propane blow torch, just red up the hole for drilling
bed frames...good for pratice, welding
xman
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