CNC lathe turning rough with pulley molding insert always boring, diameter 118 cast iron, speed feed should be put how much?

How many teeth of molding inserts do you have? Also look at the pulley groove is how big, the larger the contact area, the greater the cutting resistance. In principle, to solve the boring car you need to increase the number of revolutions to reduce the knife, reduce the depth of cut (you are molding knife here can only be considered to reduce the number of teeth cutting at the same time)

In addition to the tool, you also need to consider the next machine tool, my original factory when I encountered this matter. At that time to buy the heavy two machine 6150 CNC lathe. In the low speed and large depth of cut when the machine is very easy to bog down, in the 200 rpm when I can even hold the spindle by hand to stop. Then I got someone to replace the Japanese Yaskawa inverter to solve the problem.

I originally in Chengdu to the customer tried three teeth of metal ceramic molding inserts, the parameters used at that time is Vc120, f0.05-0.12. This parameter is just for your reference, the specific still need to be adjusted according to your site. The back is my test knife photos at that time