Upgraded Damping Mechanism Enables Performance Consistency

Sandvik Coromant Company has upgraded the damping mechanism for its turning adaptors for more consistent performance and improved surface finish during internal turning operations at long overhangs. The new adaptors integrate seamlessly with the company’s new generation of CoroTurn SL cutting heads, which feature side-oriented internal through coolant.

The Silent Tools tool-holding system from Sandvik Coromant has aided machining at long overhangs by effectively damping vibrations. Now, 33 cylindrical and Coromant Capto items from the turning adaptor range (diameters 16-25 mm and ⅝-1 inch) have been improved and equipped with an overhauled and refined damping mechanism.

“The damping mechanism has been substantially upgraded compared to the former generation of Silent Tools turning adaptors. The damper body, previously requiring manual fine-tuning, is now calibrated and assembled by a machine. This automation results in a highly precise and predictable frequency area, perfectly matched to each adaptor’s intended overhang and application. This means that Silent Tools turning adaptors are more efficient at countering vibration forces at long overhangs than ever before,” says Åke Axner, global product manager of machine integration at Sandvik Coromant.

With this upgrade, the company says Silent Tools turning adaptors will ensure improved consistency and machining repeatability over all available length-to-diameter ratios, for a more reliable and high-performing product.
To further ensure optimal performance and boost productivity, a new generation of CoroTurn SL cutting heads for small diameters (sizes 16 and 20), featuring side-oriented internal through coolant, has been developed to integrate with the upgraded turning adaptors.

“The new CoroTurn SL cutting heads benefit from Silent Tools technology, which provides improved stability performance. These two products work together to enhance component quality, increase machining process stability, reduce scrap and unnecessary rework, as well as minimize unplanned machine stops. Furthermore, downtime will be reduced due to better chip control, which is one of the main issues when boring long overhangs in small diameters,” says Daniel Conessa, global product manager of turning at Sandvik Coromant.