Had to choose between a ball end mill and a bull nose for a 3D contour

Went with the 1/2 inch bull nose because the radius gave a better finish on the aluminum part's curved surface. Anyone have a go-to for finishing deep pockets without chatter?

2 comments

2 Comments

jackson.sarah12d ago

Yeah, the bull nose radius is a game changer for finish on curves... but you mentioned deep pockets. How deep are we talking, and what's your machine's taper? I've had to switch to a stub length end mill and take crazy light finishing passes to stop chatter in a 3-inch deep pocket.

claire_ramirez2212d ago

Three inches is no joke. Did you have to step down the tool diameter a lot to get that stub length to work, or did you find a good source for them? Chatter on a finish pass is the worst feeling.