Can any of you give me a recommendation on what one should do when your calculated feed and speed exceeds the comfort level of your machine?
material is 6061, using a new 1" hog end mill.
Cut length 29.07" 4 flutes
depth per pass .125 cut width .4
I calculated about 1631 RPM spindle speed, and the IPM at 45.68 and IPT at .0070 (seems really fast)
I don't want to run the machine this fast. Since it's an 80's model mill. Do I slow the spindle speed and the IPM by percentages? Or will this shorten the life of my tool?
Even if I calculate using a .75 HSS end mill, the IPM/IPT still seems too fast for my mill.
Should I use an even smaller tool, on the theory that my mill is old, and I will only be able to cut at speeds the machine will bear?
Any thoughts would be welcome,
Kenny