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Posted by DT on April 24, 2008, 9:33 am
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says...
>
>If you know a site, or if you have a list of the speed requirement for
>turning metals on a lathe, I would appreciate it. On my quick change gearbox
>on my lathe it shows the speeds, but I like to know how fast I should have
>the spindle turn if I'm turning let's say aluminum and soft steel
>maybe...The same maybe, if I could impose for a milling machine as well....I
>used to have all this stuff, but whenever my grandson visits me, and he
>needs small things, he borrows it, and then forgets to give it back to me.
>Then if I need it, I can't put my hands on it....Peter
Find the correct surface speed range for each material here:
http://shopswarf.com/endmill.html
Then look at this chart to find the spindle speed for whatever surface speed
and diameter you need:
http://jmkasunich.dyndns.org/cgi-bin/blosxom/shoptask/spindle-speed-12-19-06.ht
ml
--
Dennis
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Posted by Stealth Pilot on April 24, 2008, 12:00 pm
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wrote:
>If you know a site, or if you have a list of the speed requirement for
>turning metals on a lathe, I would appreciate it. On my quick change gearbox
>on my lathe it shows the speeds, but I like to know how fast I should have
>the spindle turn if I'm turning let's say aluminum and soft steel
>maybe...The same maybe, if I could impose for a milling machine as well....I
>used to have all this stuff, but whenever my grandson visits me, and he
>needs small things, he borrows it, and then forgets to give it back to me.
>Then if I need it, I can't put my hands on it....Peter
no math needed.
make a facing cut across the end of the billet. set the speed of the
job such that the smoothest finish area is out where you are cutting.
usually you will find one area that cuts just right for a lovely
finish. if you dont see one sharpen the tool again and try another
facing cut.
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Posted by Leon Fisk on April 24, 2008, 1:28 pm
Please log in for more thread options On Wed, 23 Apr 2008 20:07:15 -0700, "pmaston"
>If you know a site, or if you have a list of the speed requirement for
>turning metals on a lathe, I would appreciate it. On my quick change gearbox
>on my lathe it shows the speeds, but I like to know how fast I should have
>the spindle turn if I'm turning let's say aluminum and soft steel
>maybe...The same maybe, if I could impose for a milling machine as well....I
>used to have all this stuff, but whenever my grandson visits me, and he
>needs small things, he borrows it, and then forgets to give it back to me.
>Then if I need it, I can't put my hands on it....Peter
I made a simple spreadsheet and pdf file several years ago
using conservative figures for smaller equipment. You can
find it here:
http://www.iserv.net/~lfisk/drillbitrpm.zip
The spread sheet should work in MS Excel, but I don't have
anyway to test it. The pdf is just a spread sheet printout
with suggested values. That values should work with either
drill bits or lathe stock.
It lists several materials and suggested rpm's for material
from 1/32 to 8 inches in diameter. If you use the spread
sheet you should be able to just change the value for the
"SFM to calculate" field and come up with your own custom
values.
It was built using an old version of Quattro Pro, so I have
a Quattro version around too if some needs it. I know that
version works :)
--
Leon Fisk
Grand Rapids MI/Zone 5b
Remove no.spam for email
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Posted by Ed Huntress on April 24, 2008, 1:46 pm
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> On Wed, 23 Apr 2008 20:07:15 -0700, "pmaston"
>
>>If you know a site, or if you have a list of the speed requirement for
>>turning metals on a lathe, I would appreciate it. On my quick change
>>gearbox
>>on my lathe it shows the speeds, but I like to know how fast I should have
>>the spindle turn if I'm turning let's say aluminum and soft steel
>>maybe...The same maybe, if I could impose for a milling machine as
>>well....I
>>used to have all this stuff, but whenever my grandson visits me, and he
>>needs small things, he borrows it, and then forgets to give it back to me.
>>Then if I need it, I can't put my hands on it....Peter
>
> I made a simple spreadsheet and pdf file several years ago
> using conservative figures for smaller equipment. You can
> find it here:
>
> http://www.iserv.net/~lfisk/drillbitrpm.zip
>
> The spread sheet should work in MS Excel, but I don't have
> anyway to test it. The pdf is just a spread sheet printout
> with suggested values. That values should work with either
> drill bits or lathe stock.
>
> It lists several materials and suggested rpm's for material
> from 1/32 to 8 inches in diameter. If you use the spread
> sheet you should be able to just change the value for the
> "SFM to calculate" field and come up with your own custom
> values.
>
> It was built using an old version of Quattro Pro, so I have
> a Quattro version around too if some needs it. I know that
> version works :)
>
> --
> Leon Fisk
> Grand Rapids MI/Zone 5b
> Remove no.spam for email
Excel imports Quattro Pro files, so you could upload that and cover most
people who would be interested.
--
Ed Huntress
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Posted by Leon Fisk on April 24, 2008, 2:23 pm
Please log in for more thread options On Thu, 24 Apr 2008 13:46:04 -0400, "Ed Huntress"
>
>>
>> I made a simple spreadsheet and pdf file several years ago
>> using conservative figures for smaller equipment. You can
>> find it here:
>>
>> http://www.iserv.net/~lfisk/drillbitrpm.zip
>>
>> The spread sheet should work in MS Excel, but I don't have
>> anyway to test it. The pdf is just a spread sheet printout
>> with suggested values. That values should work with either
>> drill bits or lathe stock.
>>
>> It lists several materials and suggested rpm's for material
>> from 1/32 to 8 inches in diameter. If you use the spread
>> sheet you should be able to just change the value for the
>> "SFM to calculate" field and come up with your own custom
>> values.
>>
>> It was built using an old version of Quattro Pro, so I have
>> a Quattro version around too if some needs it. I know that
>> version works :)
>
>
>Excel imports Quattro Pro files, so you could upload that and cover most
>people who would be interested.
Done, now the zip file has an xls and wb3 spread sheet along
with the static pdf printout.
It has the same file name, just added the wb3 spread sheet
version to it.
--
Leon Fisk
Grand Rapids MI/Zone 5b
Remove no.spam for email
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>If you know a site, or if you have a list of the speed requirement for
>turning metals on a lathe, I would appreciate it. On my quick change gearbox
>on my lathe it shows the speeds, but I like to know how fast I should have
>the spindle turn if I'm turning let's say aluminum and soft steel
>maybe...The same maybe, if I could impose for a milling machine as well....I
>used to have all this stuff, but whenever my grandson visits me, and he
>needs small things, he borrows it, and then forgets to give it back to me.
>Then if I need it, I can't put my hands on it....Peter