KM™ Tunable Bars KM63TS™ Tunable Bar with KM Quick Change Connection Common Challenges in Internal Machining Internal machining operations are very sensitive to chatter and vibrations. Common challenges include: • Unfavorable geometric circumstances. • Machining at extended length-to-diameter ratios. Additionally, internal machining offers little space for a stable tool and has restrictions for coolant supply and chip removal. These factors can lead to chattering, poor surface finish, noisy vibrations, and workpieces that are out of tolerance. WIDIA™ solves these problems with our portfolio of Tunable Boring Bars. WIDIA Tunable Tooling WIDIA Tunable Boring Bars are manufactured with an internal dampening package designed to eliminate chatter in deep-hole boring applications. We manufacture standard tunable bars and have extensive capabilities to design and produce almost any style of tunable product, including boring bars, extensions, holders, rotating adapters, and modular sections. Advantages of WIDIA Tunable Tooling The features of the WIDIA proprietary Tunable Boring Bar system provide significant advantages: • Optimal rigidity Improved surface quality and close tolerances • Machining without chatter or vibration due to vibration-free machining. Less noise exposure and improved machining results. • Increased productivity • Tunable damping mechanism Larger depth of cut and better chip removal by up to Bar can be tuned on the machine, and tool can be 10:1 (steel) and 15:1 (carbide) length-to-diameter ratio. adjusted to account for different vibration behavior. WWW.WIDIA.COM A221