en.Wedoany.com Reported - Germany's Walter AG has launched the new Xtra·tec® S3 series of indexable milling cutters, expanding its product line to address demands for greater cutting depths, higher feed rates, and stability in challenging machining conditions or when milling unstable workpieces. The S3 designation represents the series' three core advantages: stability, supply, and selection.
As the first tool in this series, the M6420 high-feed milling cutter is designed to meet these requirements. The M6420 features a patent-pending chip pocket design that ensures reliable chip evacuation, particularly for safely removing large volumes of chips during rough machining of various ISO materials.
The stability of the new Xtra·tec® S3 series is achieved through a vibration-damping flute design. According to finite element method analysis, the rigidity of the tool body is increased by up to 30%, contributing to extended tool life. High cutting forces acting on the tool body, especially in high-feed milling strategies, are effectively reduced. Combined with the large contact and support surfaces of the M6420, feed per tooth can reach up to 3 mm.
Another decisive factor for enhanced performance and extended tool life is the optimized coolant supply. Each insert seat features up to three coolant channels, allowing the milling cutter to fully utilize the machine's available coolant volume without pressure loss.
Targeted supply increases coolant volume by 48%, reducing temperature at the cutting edge while ensuring efficient chip evacuation, particularly under high feed rates and large cutting depths.
To simplify insert identification and handling in daily production, Walter has adopted a user-friendly, intuitive selection system for the S3 series, based on self-explanatory insert geometry naming conventions: L5 for light cutting geometry, M5 for medium cutting geometry, and R5 for roughing geometry.
Each insert features four cutting edges and is made from wear-resistant Tiger·tec® Gold grade. Walter further enhances cost efficiency by maximizing cutting data and tool life.
