Sandvik Coromant’s CB7015 is a CBN grade for a broad range of applications and designed to deliver optimal finish quality in the production of transmission components. The CB7015’s primary function is turning case-hardened steels (58-65 HRc). Due to the Safe-Lock clamping system, the CBN grade with a wear resistant ceramic binder is also usable for dry machining. It complies with all standard shape and position tolerances.
The CBN product range from Sandvik Coromant includes inserts with standard corner radii and wiper inserts as well as an Xcel version. The wiper geometry offers a range of process optimizations including improved finishes for standard cutting data. It also provides higher finish quality with increased feeds – roughness grades below 3.2 µm can consistently be achieved. With Xcel geometries and feeds of 0.011 inches, roughness grades of 1 µm can be achieved. In addition, the Xcel insert, with up to eight cutting edges, enables shorter production times and reduced tool costs per component. Dry machining avoids the costs for coolant use, offers reduced capital investment and low-cost chip disposal, all of which help to further reduce machining costs.