Machining Haynes 230

[eKretz]

Have you tried a high feed mill? That high lead angle will help with tool life, like I mentioned earlier. Get the right inserts in there and it should last pretty well. Just switch to the normal solid endmill for finishing after your pocket is all roughed out.

 

[plastikdreams]

Have you tried a high feed mill? That high lead angle will help with tool life, like I mentioned earlier. Get the right inserts in there and it should last pretty well. Just switch to the normal solid endmill for finishing after your pocket is all roughed out.

These inserts have a high lead angle and .03 cr. I run a finish pass with a .375 coated 5 flute. It's taking about 10k radial for cleanup, it lasts forever lol. I was just playing with going troichiodal with a .500 5 flute. This stuff is just really abrasive. It's all good.

 

[eKretz]

These inserts have a high lead angle and .03 cr. I run a finish pass with a .375 coated 5 flute. It's taking about 10k radial for cleanup, it lasts forever lol. I was just playing with going troichiodal with a .500 5 flute. This stuff is just really abrasive. It's all good.

Which cutter are you using? And yes, it's abrasive stuff, no lie.

 

[plastikdreams]

Some pics

 

[eKretz]

Hmm, that is not a high lead angle cutter like I am talking about. That's a high positive, but 90° lead angle. See attached for what I mean. This reduces the chip thickness and also spreads the load to a larger area of the edge, reducing wear. I have used this method on a lot of superalloys with good success on most.

 

[plastikdreams]

Hmm, that is not a high lead angle cutter like I am talking about. That's a high positive, but 90° lead angle. See attached for what I mean. This reduces the chip thickness and also spreads the load to a larger area of the edge, reducing wear. I have used this method on a lot of superalloys with good success on most.

View attachment 398960

View attachment 398961

Ahh ok, yeah I don't know if I can get one small enough, and at this point it's just going to be easier to just go back to endmills. Here's an insert after 1.25 parts running 1800 rpm and 4 ipm.

 

[eKretz]

Ahh ok, yeah I don't know if I can get one small enough, and at this point it's just going to be easier to just go back to endmills. Here's an insert after 1.25 parts running 1800 rpm and 4 ipm.

You might try to see if there's a solid carbide available that's ground in such a manner...or order one. High lead is very helpful in such situations.

 

[dangerboy]

Super interesting stuff, I love these kinds of posts, full of actual real world situations and solutions.

Thanks guys

 

[plastikdreams]

Super interesting stuff, I love these kinds of posts, full of actual real world situations and solutions.

Thanks guys

So you like getting entertainment from others misfortunes...good man

 

[plastikdreams]

Some of these materials are just a real bear to machine...I find it fun trying to get the upper hand.

 

[dangerboy]

Well, most of us have been there, it's just nice to see the issues but not have them impact my day...

 

[mhajicek]

Some of these materials are just a real bear to machine...I find it fun trying to get the upper hand.

There's more profit in the hard stuff. Anyone with a Fadal in their garage can make aluminum Harley parts.