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Author: AnthonyAnthony Date: Jul 25, 2007 08:36
Guys/Gals,
What shrink fit mill tooling holders have you any experience with? I'm
looking at this option for doing some light milling, but I have a somewhat
long tool length and length of engagement of the tool (approx 1" on a 3/8"
EM). This will be on a 30 taper machine. I'm considering it for rigidity
purposes and clearance issues. Most of the shrink fit holders I have seen
have narrow necks allowing a lot more clearance.
Your opinions / experience is greatly appreciated as usual.
--
Anthony
You can't 'idiot proof' anything....every time you try, they just make
better idiots.
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Author: Joe788Joe788 Date: Jul 25, 2007 10:52
On Jul 25, 8:36 am, Anthony hotmail.com> wrote:> Guys/Gals,
> What shrink fit mill tooling holders have you any experience with? I'm
> looking at this option for doing some light milling, but I have a somewhat
> long tool length and length of engagement of the tool (approx 1" on a 3/8"
> EM). This will be on a 30 taper machine. I'm considering it for rigidity
> purposes and clearance issues. Most of the shrink fit holders I have seen
> have narrow necks allowing a lot more clearance.
>
> Your opinions / experience is greatly appreciated as usual.
>
> --
> Anthony
>
> You can't 'idiot proof' anything....every time you try, they just make
> better idiots.
>
> Remove sp to reply via email
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Author: Robert LuckRobert Luck Date: Jul 25, 2007 12:38
"Anthony" hotmail.com> wrote in message
news:Xns997875D9F6DCacziparle3sp835@216.77.188.18...> Guys/Gals,
> What shrink fit mill tooling holders have you any experience with? I'm
> looking at this option for doing some light milling, but I have a somewhat
> long tool length and length of engagement of the tool (approx 1" on a 3/8"
> EM). This will be on a 30 taper machine. I'm considering it for rigidity
> purposes and clearance issues. Most of the shrink fit holders I have seen
> have narrow necks allowing a lot more clearance.
>
> Your opinions / experience is greatly appreciated as usual.
I have been using shrink holders for nearly ten years now. They have much
better concentricity than a collet chuck, are inherently balanced (if high
spindle rev's are your thing) and they are not buggered when you put a
cutter with a Weldon flat in (unlike a hydraulic chuck).
I have found that 2 diameters engagement of the shank into the holder is
plenty - I have run 32mm solid carbide 300mm stick-out on 64mm engagement -
and currently run a
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Author: AnthonyAnthony Date: Jul 25, 2007 18:37
"Robert Luck" blueyonder.co.uk> wrote in
news:yENpi.9246$%%v3.6402@fe3.news.blueyonder.co.uk:
Thanks for the useful info Bob. This will be in a high volume production
environment, so changes will be somewhat regular. Will only be using
solid carbide EM's, so no worries about the HSS. We have a shrink fit
heat/cool machine in another dept, but I'm going to have to invest in a
30 taper pot for it, as everything they have is 40 taper. I didn't want
to invest in a pot for little gain. Sounds like this may be the way I go,
I'm going to need all the rigidity I can muster out of the system because
of the long dia/L ratio.
--
Anthony
You can't 'idiot proof' anything....every time you try, they just make
better idiots.
Remove sp to reply via email
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Author: AnthonyAnthony Date: Jul 25, 2007 18:38
Joe788 aol.com> wrote in
news:1185385957.000429.212390@d30g2000prg.googlegroups.com:
Thanks Joe, as I posted back to Bob, I have access to a machine, just have
to purchase a 30 taper pot for it. Hopefully it would help increase tool
life.
--
Anthony
You can't 'idiot proof' anything....every time you try, they just make
better idiots.
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Author: J CarrollJ Carroll Date: Jul 26, 2007 07:03
Anthony wrote:
> "Robert Luck" blueyonder.co.uk> wrote in
> news:yENpi.9246$%%v3.6402@fe3.news.blueyonder.co.uk:
>
> Thanks for the useful info Bob. This will be in a high volume
> production environment, so changes will be somewhat regular. Will
> only be using solid carbide EM's, so no worries about the HSS. We
> have a shrink fit heat/cool machine in another dept, but I'm going to
> have to invest in a 30 taper pot for it, as everything they have is
> 40 taper. I didn't want to invest in a pot for little gain. Sounds
> like this may be the way I go, I'm going to need all the rigidity I
> can muster out of the system because of the long dia/L ratio.
I just looked in my Haimer catalogue and the seem not to carry 30 taper
hardware. Perhaps it just isn't in this book.
Shrink fit holders are the way to go. I've purchased a bunch in the last
year, all 50 taper, and Haimer and Iscar have been great.
The balance is good even with 6 inch holder gage lengths holding 6 inch
extensions that have 4.5 inches of tool projection running at 12,000 RPM.
Also, depending on the diameter, Iscar has some 7 inch gage length holders.
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Author: J CarrollJ Carroll Date: Jul 26, 2007 12:28
Anthony wrote:
>> Anthony wrote:
>>> "Robert Luck" blueyonder.co.uk> wrote in
>>> news:yENpi.9246$%%v3.6402@fe3.news.blueyonder.co.uk:
>>>
>>> Thanks for the useful info Bob. This will be in a high volume
>>> production environment, so changes will be somewhat regular. Will
>>> only be using solid carbide EM's, so no worries about the HSS. We
>>> have a shrink fit heat/cool machine in another dept, but I'm going
>>> to have to invest in a 30 taper pot for it, as everything they have
>>> is 40 taper. I didn't want to invest in a pot for little gain.
>>> Sounds like this may be the way I go, I'm going to need all the
>>> rigidity I can muster out of the system because of the long dia/L
>>> ratio.>>
>> I just looked in my Haimer catalogue and the seem not to carry 30
>> taper hardware. Perhaps it just isn't in this book. ...
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Author: AnthonyAnthony Date: Jul 27, 2007 00:50
>
> Considering your work, have a look at the 40 taper shorty holder if
> you haven't seen it.
> The Iscar web site is very up to date. Anything new will be there
> before it is anywhere else. You might even find things your rep isn't
> yet aware of.
>
>
I saw the shorty ER holders..and am contemplating, especially for those 2
mm drills. The machine I'm getting is a BT30 taper, so far, seems to be
somewhat limited supply of the really good stuff in that taper.
--
Anthony
You can't 'idiot proof' anything....every time you try, they just make
better idiots.
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