Fur around holes using boring block on Komo Mach I VR 510
We use our boring block extensively to put thousands of holes in veneered MDF for ceiling panels. Our problem is that one some products, particularly those that are machined good side up, we get a fair amount of fur around the holes that has to be sanded off by hand. Even then, the veneer can split and make the panel look terrible. Some of our products are machined face down, and because we use a fresh piece of 1/8" or 1/2" mdf underneath for each sheet, our holes are much cleaner. It is when they are face up that is the problem. We are considering using the 1/8" MDF on the face to compress the veneer so that we get less fur, but I thought I should dig deeper and see if there is something else I can do. The boring block runs at 2800-3000 rpm max and we are going about 100 IPM on the plunge. Should we slow the plunge down? Any and all assistance would be appreciated.
Machines we run: Multicam 3-205R, 5x12 table, 11hp Eurospindle, 20hp pump, Enroute 4.1, and Komo VR510 Mach I: 5x10 table, 20hp spindle, 40hp pump.