M2472 and M2473 milling cutters with ceramic button indexable inserts provide great reliability and toughness for better productivity.
The M2472 cutter body accepts positive ceramic inserts, and the M2473 cutter body accepts double-sided ceramic inserts with 8 or more cutting edges per indexable insert. The cutting diameters (Dc) range from 1 to 2 in. (32 to 63 mm).
The grades are based on silicon, aluminum, oxygen, and nitrogen (SiAlON). The WIS10 SiAlON grade is designed for very stable conditions and offers exceptional wear resistance. The WIS30 SiAlON grade is targeted for universal applications due to its extreme toughness.
Both grades are the top choice for milling applications because of their high resistance to thermal shocks as the cutting edge enters and exits the workpiece material while possibly being flooded with coolant. In addition, the inserts can be used without cooling lubricant, where compressed air or minimum quantity lubrication (MQL) is applied for beneficial results.
To protect the cutting edge when the tool enters the cut, Walter recommends using the “roll-in” strategy in which the width of the cut (WOC) is gradually increased after the insert initially engages the workpiece to reduce shock and vibration. This strategy imparts finer surface finishes and increased tool life.
New clamping wedges for securing the inserts feature internal cooling grooves and a TiN-coated surface. Potential benefits include protection against material weld formations due to the coating on the clamping wedges, and protection against excessive heat produced when milling because of a targeted compressed air supply using these advanced wedge-type clam.
The milling cutter bodies are ideal for roughing heat-resistant super alloys (ISO S workpiece group), such as Inconel, Incoloy, Monel, Nimonic, Haynes, Stellite, Udimet, Wapaloy, and Hastelloy alloys.
- Materials: Nimonic, Haynes, Inconel, Stellite, Udimet, Waspaloy, etc.
- Ideal for roughing heat-resistant super alloys (HRSA)
- For use without cooling lubricant; compressed air or MQL can be beneficial
- Excellent wear resistance and toughness for reliable production
- Reduction in unit costs due to high productivity
- Protection against the flow of chips produced by the milling cutter due to targeted compressed air supply using wedge-type clamping
- Protection against material weld formations due to coating on the wedges
Walter USA, LLC
