Page 27 - Demo
P. 27
The HELI-MILL concept offers several advantages: consistent rake and relief angles reduce cutting force variations, uniform cutting wedges enhance strength, and the helical cutting edge improves accuracy. Continuous improvements have made the helix more aggressive and top surfaces more intricate, combined with advanced carbide grades for higher performance. However, the parallelogram shape limited cutting edges to two. Adapting the helical edge to triangular inserts addressed this, providing three cutting edges and a wider central area for a larger clamping screw, strengthening the assembly and enhancing ramping-down capability.Overall, ISCAR's 27
