Edge chipping following the peripheral grinding of cermet inserts is a major pain point in the industry. 

To address this issue, we conducted extensive testing and successfully resolved the problem. 

The machining process is as follows:

Machining Equipment: Chengong MK350 Peripheral Grinder

Grinding wheel specifications: 11A2Z 350X300X10X5X25T 8ASDCⅡ+D30ZB-2

Insert model: Meisherui TNGG160402R-F(M)MC1020

Cooling: Oil cooling; oil temperature set to 25°C

Grinding process: Spindle speed: 1000 rpm;

Infeed speed (depth of cut): 1.4 mm/min; lateral oscillation speed: 800 mm/min;

Corner radius (R-angle) machining speed: 340 mm/min; lateral oscillation speed during R-angle machining: 140 mm/min

Dressing wheel specifications: B 150X32X60T WA280#

Dressing wheel speed: Edge grinding: 0.002 mm/min; R-angle grinding: 0.001 mm/min;

Processing efficiency: 137 seconds/piece (including 10 seconds for robotic workpiece change);

Grinding wheel life: Approx. 10,000 cermet inserts of this model per wheel;

Magnified photo of the cutting edge after grinding: