by Ashwin Murali, Shi Chen and Igor Kaufmann
Metalworking industry is looking for increase in productivity and maintaining costs per part. One of the most effective methods is the drastic increase of cutting speed by use of Polycrystalline Cubic Boron Nitride (PCBN). The challenge in cast iron machining with ISO/ANSI inserts are high tooling costs and insufficient stability of the insert due to form locked clamping mechanism. The paper presents Beyond shield: an innovative clamping mechanism which provides better rigidity and less movement of the insert, combining with a new designed PCBN inserts shape which results in lower grinding, lower manufacturing time and eventually lower cost.