It has been a while for a MP-44 trunion update. The next couple of posts will get us back up to date with the trunion project.
The new op 5 was to cut a slot and rough magazine opening to allow coolant flow and chip removal and still allow us to high speed machine.
Well it did not work as well as we had hoped. The chip load was so great as it was not removed as fast as it needed to be so we still had problems with the end mill chipping. So back to the drawing board. The answer was to put the trunion on the manual mill and drill the hole much larger but still under size.
The new process worked great. No chattering or broken end mills.