O/T the smallest end mill!

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Hi , all !

 

A bit O/T !

 

What is the smallest end mill you use ?

I use end mill 0.3 mm (0.0118`) flat mill solid

and ball nose 0.6 mm .

Max.rpm in machine are 8000 rpm .

Cutting mostly copper & graphite ,sometimes alluminium and steel.

 

This work deserves bigger rpm but I am OK with this tools !

 

For smaller dia. I grind cutters .

 

Some more cool mills 1 mm extra long 15 mm cutting length, ball nose 1.5 22mm cutting lengh ,

1 mm ball nose 10mm cutting length ,2mm ball nose 30 mm cutting lengh .

 

Y-G,SCT, Hanita, SGS .

 

I love it !

Iskander teh crazy work for crazy PPL!

[Keith M]

A guy I worked with used a .005 tapered end mill. It was on graphite. It was used to cut it the manufactures emblem.

[Keith Graydon]

.008"

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quote:

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.008"

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Who produce this piece of art ????

[Mark H]

The smallest I've used was .005" on graphite for an engraving electrode.

 

edit

RobbJack is the manufacturer and ordered through MSC.

 

[ 07-09-2003, 07:22 AM: Message edited by: Mark H ]

[Fig sign]

quote:

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.005"

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WOW !

Well ,actually I look for some end mills less then 0.3 mm (0.0118`).

Anyone can advice me some good stuff?

 

I will be really appreciated !

 

[ 07-09-2003, 07:29 AM: Message edited by: plasttav ]

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Thank you , Mark , i will have a look!

 

 

Iskander teh unduly curious !

 

[ 07-09-2003, 07:31 AM: Message edited by: plasttav ]

[Greg Williams]

Hi,

 

We regulary use .005" ballnose and slot drills for machining cavities in stainless, brass and steel

 

 

200 posts Whooo!

 

[ 07-09-2003, 07:57 AM: Message edited by: Budgie ]

[mayday]

Mitsubishi MSTAR end mills work well also

as small as .2 mm dia

[Marty A]

Budgie

 

i'm curious. what rpm and how deep a cut do you take with that small of em?

 

marty

[Zero]

quote:

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We regulary use .005" ballnose

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.005" balls? I wasn't aware they existed heh. I regularly use .005" and .01" end mills for engraving logos and things of that sort. We only cut plastics here for the most part, I couldn't imagine using one to cut metal

 

Geez, even touching the suckers off is a real PITA. You have to watch out not to breath in the direction of the cutter, one little sneeze or cough could break the thing

 

Where do you get your .005" ball mills Budgie?

 

[ 07-09-2003, 08:43 AM: Message edited by: Zero ]

[kyle forbes]

.1mm ball (.0039) 2 flute in hardened h-13 52-54Rc

.00005" depth of cut at 42,000 rpm.

The cutting tools are Jabro, an excellent line of

cutters available here: www.tescotech.com

I don't know how they manufacture these things.

Under a microscope all the detail is there.

[TREV]

.005 flat and ball end cutters. i've used them on every thing from graphite to hardened d-2 (60 rc).

most of my use of them has been on machines with speeds from 18000 to 30000. my cutter of choice for sall sizes is tesco.great tools at affordable prices.

trevor

 

edit:

kyle you beet me to the tesco plug

btw how is work were you are employed?

trevor

 

[ 07-09-2003, 09:44 AM: Message edited by: TREV ]

[EZ3PUTT]

Use .005" ballnose to make some SMALL electrodes.

Harvey tool Co. @ www.harveytool.com

[Tony]

+1

Harvey's

[Midwest]

.005 em small electrodes.

 

That brings back memories of a small gear electrode.

[kyle forbes]

quote:

 

kyle you beet me to the tesco plug

btw how is work were you are employed?

trevor

 

not good

[cadcam]

I am with the rest .005 & of course the .01 still have some in my tool box.

Used for Alum molds.

[kkominiarek]

.008 e mill.....machining graphite

[cadcamjim]

.010 DIA 4 flute carbide E .

SS, H13, P20,

[TheePres]

Can I borrow this thread to find "BIGGEST" cutters?

(Fly-cutters dont count)

[Hardmill]

Yup,

.005 flat and ball for graphite and hard steels.

And I believe they were tesco.

 

PEACE

[Rick Damiani]

quote:

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Can I borrow this thread to find "BIGGEST" cutters? (Fly-cutters dont count)

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I got a 12" cutter...

 

...in my cold saw.

[Greg Williams]

quote:

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i'm curious. what rpm and how deep a cut do you take with that small of em?

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Motty,

 

When using such small tooling we have found that cutter runout is the biggest problem that you will face, If a 0.2 cutter runs out by 0.02 then that is 10% of the diameter and that is a big problem. For this reason we do not use speed increaser heads.

 

Until recently we only had a 20K spindle and as I don't like running them flat out we used 18K

with 100mmmin feed and 0.01 depth of cut for a .005" Endmill. We never had any cutter breakage issues using these numbers, if fact I feel that they are a little conservitive.

[mold100]

Coincedence, today I cut a cavity with .005 at 39,000 rpms at programmed feed of 30 ipm though I dont think it went over 10 with .0002 depths of cut.Also .01 dia same s & F with .0003 d.o.c.

(yes the cutters had to be relieved) and the .01 was the rougher total depth small ribs .0673 in H-13 50-52 rc.