With the new Xtra·tec® S3 series, Walter expands its indexable insert milling cutter range, responding to market demands for greater cutting depths, higher feed rates, and maximum stability even under difficult machining conditions or when milling unstable workpieces. The name S3 stands for the line’s three core advantages: stability, supply, and selection.
As the first tool in the series, the M6420 high-feed milling cutter meets these demands to perfection. Its new innovative, patent-pending chip space design enables reliable chip evacuation. This design allows large amounts of chips to be safely evacuated, particularly when roughing a wide variety of ISO materials.
The stability of the new Xtra·tec® S3 series is achieved through a vibration-damping chip-flute design. According to a finite element method (FEM) analysis, the cutter body increases rigidity by up to 30 perfect, which in turn extends tool life. High cutting forces exerted on the tool body, especially during high-feed milling strategies, are effectively minimized. In combination with the large contact and support surfaces of the M6420, feed rates up to 3mm per tooth can be reliably achieved.
Another decisive factor for the enhanced performance and long tool life is the optimized coolant supply. With up to three coolant channels per insert seat, the milling cutter makes maximum use of the coolant volume available from the machine without loss of pressure.
The targeted supply increases the coolant volume by 48 percent, which lowers the temperature at the cutting edge while ensuring efficient chip removal, especially at high feed rates and large depths of cut.
To simplify insert identification and handing in everyday production, Walter relies on a user-friendly, intuitive selection systems for the S3 series based on a self-explanatory nomenclature of insert geometries: L5 equals light-cutting geometry, M5 equals medium-cutting geometry, and R5 equals roughing geometry.
With four cutting edges per insert that are made of wear-resistant Tiger·tec® Gold grades, Walter further increases cost effectiveness by maximizing cutting data and tool life.
More info www.walter-tools.com/us
