[homchz]

Thanks for the info, A-2 sounds right but I would have to look at the job slip to be sure. To save time and the fact we were only taking a small amount off the part we ended up surface grinding the plates.

I think you are right that it is a motor issue, I am just not sure if it is because we are overworking a machine that cannot handle it, or if there is an issue with the motor itself. I would have thought a 3HP would handle it, but maybe I am wrong. When we did the formula for what we though we were running is seemed that 3HP would handle it just fine.

I thought of trying a smaller cutter, but did not get around to it, as this is a secondary job in the shop. There was minor chatter but mostly at the ends not in the middle, and the chips are taking all of the heat, and leaving the part just fine.

Thanks for the info on the insert grade too, I'll look to see what we were running.

Josh