Milling Hardened Material
Milling Hardened Material
(OP)
Hello,
I am looking for some feeds and speeds to mill 6150 material that has been hardened to 60 R "c" on a Yasda high speed jig borer. We are using a 6mm 4 fluted carbide end mill that is coated. I can not find any feeds for materials this hard.
Thank you
Bud
I am looking for some feeds and speeds to mill 6150 material that has been hardened to 60 R "c" on a Yasda high speed jig borer. We are using a 6mm 4 fluted carbide end mill that is coated. I can not find any feeds for materials this hard.
Thank you
Bud





RE: Milling Hardened Material
RE: Milling Hardened Material
RE: Milling Hardened Material
Hopefully you already removed the bulk and are just finishing. If this is the case, using a diamond wheel for grinding or ceramic for cutting should do the trick.
You can also have carbide end mills coated with diamond using the CVD (chemical vapor deposition) process. This would be ideal.
With your current situation I would start with an RPM of about 2500 and lots of coolant flow. Keeping it cool is the key. If you have cold blast air system that would be better.
Just remember the key is to dissipate heat witht the chip. So play with the RPM until you achieve a good chip.
Good Luck!!!
Quote: "Its not what you know, its who you know"
Everythings a learning experience-Everything
RE: Milling Hardened Material
RE: Milling Hardened Material
Thanks again...
Bud
RE: Milling Hardened Material
For hard steel, you would be better off starting with
surface speed of say 50. Chip load determines the feed rate. And that maybe .001 if your lucky.