I' am using an angle head which 11 Kg's of weight and i have a job for which i need to keep this angle head on the machine spindle for a weeks time (or probably 2 weeks continuously) . Workpiece is Aluminium 6061 T651.
The spindle will be running at 3,000 RPM. Operation is drilling for 30%, 35% of the time rough milling with a 10mm endmill and 35% finish milling with 10mm endmill again.
The spindle is 12,000 RPM Fanuc direct drive design.
I would like to know if anyone knows the limit with regards to duration for a 11 Kg angle head clamped on the spindle continuously without taking it off. My worry is about the draw bar being able to hold this weight for days on end along with any effect on the spindle bearings (in case).
Is anyone out here doing any similar application where a heavy angle head stays on the spindle for days on end ?
Thanks a ton in advance for anyone who can throw some light on this issue
PS: Programming has not been an issue as i developed a VBA app for converting 3 axis programs to angle head (switching axis movement from Z to X or Y including circular interpolation) after some help on the program conversion issues in some of the other posts in here.