Andre B. <ablanch...@...> writes:
> Yep, were it me I would put some bigger radii in the corners and run > a carbide ball end mill finish pass with say 0.005" or less down > steps. Wind it up as fast as it will turn and feed it as fast as it will go. > > In the video that squawking that John is referring to in the corners > is something you can get away with in aluminum and softer steel but > if you are cutting 60Rc tool steel and you hear that you may as well > just stop and change the cutter because it is done cutting. > Hi Andre, So you heard that noise too huh? (Ahem) Thanks for the insight into the causes of chatter. Thanks to John too. I have been curious re: the proper way to use tapered ball end mills, so now is the time to find out. Upgrading to Emc2 has opened a virtual wonderland of machining capabilities that I could only dream of when I was working/fighting with the Bandit controller. I only have a week of machine time under my belt with Emc2, but it feels longer. I tried enlarging the corner radii in the pockets, which only let me go faster and make nastier noises in the corners. I think Mastercam has high speed machining strategies that will reduce cutter embedding/burial in the corners. With the old Bandit controller high speed machining was a joke, so now with EMC2 I have more toys to try out than time to try them. When I finish with the current work, I will tweak the G64 P-X settings and try out some of the high speed bells and whistles under the hood of Mastercam. If I get any noteworthy results, I will post them. Tom ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
