Face mill

[pete mcadams]

Hi guys

Just got a new 4 inch face mill I hace never run anything like it. based on the cuting peramiters on the insert pack I will be runing it at 750 rpm with a feed of 25 ipm. 750 spm 4inch diamiter 6 inserts. The feed seems to high or do I run it and see?

thanks

Pete

[kinglouie V]

RUNNET!!

 

ONE ?- COOLANT or AIR??

 

what's your material?

[spade117]

It all depends on what material you are cutting and what depth cuts you are using. 750 rpm seems very slow to me though.

[pete mcadams]

Material is scaly hot roll mild steel

I dont have air so coolant or dry.

[Kelly Burns]

What is the manufacturer of the facemill?

[Storkman]

Roughly 800 sfm and .0055 cpt. Sounds ok to me. Let her rip.

[pete mcadams]

Thanks guys

It's a Kenametal body with Sandvik inserts.

[DavidB]

Run it dry.

Is it possible to rig up an external air line on the machine?

[Jeff the haas_guy]

I hope your not running that monster on a haas.

Not enough guts to handle it.

[Nick_AFRL]

what machine are you running it on....? make sure you are rigid and have enough power to run it.

[DavidB]

I did some Calcs for you.

A 4" dia x 6 teeth face mill in mild steel with Sandvik 1025 grade inserts at .1" deepth of cut needs 17 Hp, Thats 18.3Inch cubed / min removal rate,

and 115 Ft lbs Cutting Torgue. Rpm 761 feed 46 Inches/min.

[within a thou]

a lil off topic but do any of you guys take in for count the make up of the insert for your speeds and feeds and what do you do to compensate for radius size pos or neg rakes and so on. people can spew out formulas all they want but until ya unleash a beast in steel see what she can do i think those formulas are useless to many variables

[Fig sign]

This is very slow Face mill .

I used Die-jet and Seco mills ,they are many good times faster

[within a thou]

amen to die jet use them all the time but I am a lil surpried they supply to your neck off the woods Isk

[DavidB]

Round inserts in a face mill can have a higher feed per tooth over sqaure or rectangle inserts but they need more HP to run

[within a thou]

I only use button inserts for roughing will even use a 1" with a .1875 radinsert for finishing if the form will let me. personal preference I guess but one thing I have ound is the smaller the rad the better the surface finish but you give up edge life with the small rads so its a matter of taking the ood with the bad and hopefully finding a happy medium

[Fig sign]

It depends what you are doing and on what machine .

ONCE we had very old Haas (just imaging ) I used it for roughing and facing and with Die -jet round inserts face mills I used to eat metal .

Was my privilage ,other guys simply were scared to work with such feeds and speeds .

I did in 20 minutes work of couple of hours the others used to do

 

~~~~~~~~~~

I am a lil surpried they supply to your neck off the woods Isk

~~~~~~~~~~~~~~~

This is a long story .

In a couple of words the guy that is in Israel Seco dealer that I know personaly for many years

turned from Seco (they became too pricey here ) to Die-jet and Ilke them !

[PGW Steve]

The tool I like most for ruffing are the Sandvik 210 mills. They have a 10 degree lead angle and with the chip thinning calc, they love to run insane feed rates. With the particular insert size I have, I can go max .047" DOC and facing stainless at 200ipm. This is on a HAAS btw. The people in the neighboring unit hate it, they say it sounds like a ships horn BBBBBWWWWWAAAAAAAAAAAAAAA!!! when this thing is making a pass. Pete, if you want to borrow this face mill (2") to give it a try, send me an e-mail.

[Carl Hessig]

We got a new AJX cutter from Mitsubishi

 

http://www.mitsubishicarbide.com/mmus/en/whatsnew

 

2"dia. cutting P-20 745rpm .051 depth .051 chip 153ipm using Mastercams new highspeed roughing program. Also had 6" spindle to cut overhang. I was cutting on the low side of the recomended. Mitsubsihi gives speeds and feeds info on this cutter on steel up to 55RC.

Don't see the our Sandvik cutters getting a lot more use.

[pete mcadams]

Thanks Guys

I am running this mill on a Haas. The job I am working on now is just kleening off the scale on some 40X10 inch bars about 0.02 to take off seems to be runing ok.

I would never have bought a cutter this big but gift is nice.

Most of the faceing I do is smaller and a 2 inch Sandvik 290 works good.

Thanx for the offer Steve I just might.

pete

[Jedi Mastercam X]

If its mild carbon, RUN that bad boy dry and let it rip!!!!! stainlesses, try aobut 450-600sfm per min, .003 per tooth per rev. W/Coolant.

 

need a little more 411 as to what it is u r cutting, and what it is u r trying to do.