|
|
 Up |
|
|
  |
Author: AnthonyAnthony Date: Mar 2, 2008 05:46
Just an update on the testing for this drill. To refresh memories, I'm
pasting the original post.
/original
Application: 12%%Si forged aluminum alloy. 25 mm hole depth, 19.9 mm hole
diameter, one-shot no peck, no pilot hole.
Machine: 2007 Brother S2C, 240 PSI CTS
Current Machining parameters: 3100 RPM, 1010 mm/min (37.79"/min) Feed.
As of yesterday, 4100+ holes on the first head. By today, it should exceed
8000, provided nothing odd happened.
Very good looking hole, straight, clean, almost looks reamed. Very pleased
with this Iscar product so far.
/end post
Now with more than 24,000 holes on the original drill tip, it still looks
great, holes are still on size and smooth. The only knock is that they
don't have the larger heads listed in the catalog actually available.
--
Anthony
You can't 'idiot proof' anything....every time you try, they just make
better idiots.
|
| Show full article (0.92Kb) |
|
| | 7 Comments |
|
|
Author: F. George McDuffeeF. George McDuffee Date: Mar 2, 2008 07:29
On Sun, 02 Mar 2008 13:46:02 GMT, Anthony
hotmail.com> wrote:
>Just an update on the testing for this drill. To refresh memories, I'm
>pasting the original post.
>/original
>Application: 12%%Si forged aluminum alloy. 25 mm hole depth, 19.9 mm hole
>diameter, one...
|
| Show full article (1.40Kb) |
|
| | no comments |
|
|
Author: Joe788Joe788 Date: Mar 2, 2008 08:20
On Mar 2, 5:46 am, Anthony hotmail.com> wrote:> Just an update on the testing for this drill. To refresh memories, I'm
> pasting the original post.
> /original
> Application: 12%%Si forged aluminum alloy. 25 mm hole depth, 19.9 mm hole
> diameter, one-shot no peck, no pilot hole.
> Machine: 2007 Brother S2C, 240 PSI CTS
> Current Machining parameters: 3100 RPM, 1010 mm/min (37.79"/min) Feed.
> As of yesterday, 4100+ holes on the first head. By today, it should exceed
> 8000, provided nothing odd happened.
> Very good looking hole, straight, clean, almost looks reamed. Very pleased
> with this Iscar product so far.
> /end post
>
> Now with more than 24,000 holes on the original drill tip, it still looks
> great, holes are still on size and smooth. The only knock is that they
> don't have the larger heads listed in the catalog actually available.
>
> --
> Anthony ...
|
| Show full article (1.19Kb) |
| no comments |
|
|
Author: AnthonyAnthony Date: Mar 2, 2008 12:32
> Anthony, did you apply any special coating to the drill tip, or did
> you find a standard catalog item that suits your needs?
>
> What type of diameter tolerance is it holding?
>
>
Standard polished for aluminum finish. Which is why it has suprised me as
to the life.
As for tolerance, I've got +/-0.2 mm on this hole, as it's a rough, rough
hole. It's a 19.9 drill, and it's still running about 19.91-19.93 or
thereabouts. There is about a 0.1 mm hump in the bore where the part moves
as it breaks through the other side, but this is no issue at all in this
application, it gets another, much more stringently toleranced rough bore
(+/-0.03 mm) and then another rough / finish bore (+/-0.002 mm).
--
Anthony
|
| Show full article (0.96Kb) |
| no comments |
|
|
Author: Joe788Joe788 Date: Mar 2, 2008 13:08
On Mar 2, 12:32 pm, Anthony hotmail.com> wrote:>> Anthony, did you apply any special coating to the drill tip, or did
>> you find a standard catalog item that suits your needs?
>
>> What type of diameter tolerance is it holding?
>
> Standard polished for aluminum finish. Which is why it has suprised me as
> to the life.
> As for tolerance, I've got +/-0.2 mm on this hole, as it's a rough, rough
> hole. It's a 19.9 drill, and it's still running about 19.91-19.93 or
> thereabouts. There is about a 0.1 mm hump in the bore where the part moves
> as it breaks through the other side, but this is no issue at all in this
> application, it gets another, much more stringently toleranced rough bore
> (+/-0.03 mm) and then another rough / finish bore (+/-0.002 mm).
>
> --
> Anthony
> ...
|
| Show full article (1.62Kb) |
| no comments |
|
|
Author: BottleBobBottleBob Date: Mar 2, 2008 15:15
Joe788 wrote:
> What kind of cutting forces does the drill put no your part?
Joe:
Probably a lot less than a regular inserted drill.
> I need
> to drill about 7000 holes, 3 inches deep, 1 inch diameter in the 90
> degree face of a 2x2x4 block of aluminum. (1 hole per part, 7000
> parts). If I were drilling on the B0 face, I wouldn't hesitate to use
> a high powered drill like that, but this is on the side, and the parts
> are simply clamped from the top/bottom, like a vise, so I'm weary of
> pushing them right out of the fixture.
|
| Show full article (1.19Kb) |
| no comments |
|
|
Author: AnthonyAnthony Date: Mar 2, 2008 16:02
>
> What kind of cutting forces does the drill put no your part? I need
> to drill about 7000 holes, 3 inches deep, 1 inch diameter in the 90
> degree face of a 2x2x4 block of aluminum. (1 hole per part, 7000
> parts). If I were drilling on the B0 face, I wouldn't hesitate to use
> a high powered drill like that, but this is on the side, and the parts
> are simply clamped from the top/bottom, like a vise, so I'm weary of
> pushing them right out of the fixture. Do you think the cutting forces
> are greater than a regular HSS drill? The edge on the Chamdrill sure
> looks a lot more positive and sharp.
>
>
>
|
| Show full article (1.29Kb) |
| no comments |
|
|
|
|
|
Author: AnthonyAnthony Date: Mar 3, 2008 14:47
Anthony hotmail.com> wrote in
news:Xns9A55589F9AF4Cacziparle3sp835@216.77.188.18:
> Just an update on the testing for this drill. To refresh memories, I'm
> pasting the original post.
> /original
> Application: 12%%Si forged aluminum alloy. 25 mm hole depth, 19.9 mm
> hole diameter...
|
| Show full article (1.20Kb) |
| no comments |
|
RELATED THREADS |
|
|
|
|
