sst 304 and sst 316 speed and feed

[thanhsonnguyen]

i'm never do slotmill sst 304 or 316 befor ,anyone exp can you help me, i use slotmill 1.25x.25 thick cut hole from 1.85 to 2.3/4 dep .75- i'm need feed and speed, anyone help thanks,i use hst slotmill s450 F8. it break my slotmill, so now i'm need Carbide using i'm need speed and feed , thanks very much

[Goldorak]

use a hanita varimill or a niagara stabilizer end mill with TIALN coating

 

4500rpm+ 40 to 80 IPM for a 4 flutes , add 20% on feed for a 5 flutes .015 to .025 step over and full dept in circle roughing (use circ mill then go to roughing tab) use coolant + air if possible to avoid heat

 

the tool will cut forever

 

i cut that crap everyday

 

the naigara stabiliser HT survive pretty well in 304 flame cut...

[thanhsonnguyen]

thanks very much gold.. i'm will try that next mill part, but this is a lather part it thick 2.67 ID it 1.8505 on top and bottom, start crooves from top down.77 start on 1.8505 dia cut big in crooves 2.3/4 dep .75 ,i'm use slotmill can't use endmill

[Goldorak]

sorry i was sleepy this morning

 

 

for slot mill i get good result with interchangeable carbide insert but they are not cheap to buy

[thanhsonnguyen]

i'm got one . but now need exp on feed and speed

[Reko]

***** THREAD HIJACK *****

 

Goldorak,

 

You said:

 

quote:

---

use coolant + air if possible to avoid heat

---

I've worked with people that said NEVER use coolant with "TiAlN" variable flute endmills.

 

Are you saying coolant is good?

 

***** THREAD HIJACK ENDED *****

[Goldorak]

i always get better result with coolant when i use solid carbide end mills

 

 

for inserts it's an other game

[Goldorak]

to return t the subject , for a carbide slot mill i will start at 180sfm and .0005 IPT and crank up the feed ans SFM on the machine to find the sweet spot

[Tim Johnson]

quote:

---

I've worked with people that said NEVER use coolant with "TiAlN" variable flute endmills.

 

Are you saying coolant is good?

---

We have found more tool life by cutting 304 sst dry but also found better life cutting 316 sst wet.

[88Matt]

Stainless Steels vary widely. Depending on how "sticky" it is a major factor on air or coolantf.

[thanhsonnguyen]

i'm try s1120 f4.cut .02 sidechipload .0009 on HST sound good and very nice, i'm run 950 f2. on cabie it break tool , i'm shuold try cabie same HST, thanks you guy