Enabling Stable High-Feed Machining Under Demanding Cutting Conditions

 YG-1 has introduced YG904, a new PVD coated milling grade developed to meet the growing challenges of machining difficult-to-cut materials. Engineered with a specially developed substrate and advanced PVD coating technology, YG904 delivers stable and consistent performance in demanding milling environments.

The newly developed coating provides exceptional resistance to thermal cracking and maintains reliability under high-impact and unstable cutting conditions. As a result, YG904 grade ensures consistent surface finish, reliable tool life, and process stability.

YG904 grade performs effectively in both interrupted and continuous cutting operations and is well suited for machining high-temperature alloys, titanium alloys, and martensitic stainless steels, where durability and repeatable performance are critical. To enhance application flexibility, the grade is available in various insert styles, including APKT, ENMX, round inserts, and the TPKT series, covering most general milling requirements.

All YG904 inserts are fully compatible with existing YG-1 milling cutter bodies, allowing users to upgrade performance without additional tooling investment, thereby providing a practical and reliable solution for high-performance milling of difficult-to-cut materials.

Grade Features

 - Special surface treatment provides a smooth surface which helps prevent chip adhesion and improves chip flow.

 - Strong resistance to thermal cracking. Predictable and reliable performance in high impact and unstable cutting conditions.

 - Excellent balance between the substrate and coating enables longer tool life in interrupted cut and continuous cut.

Application Range (ISO Range: S30-S45, M30-M45)

Applicable Component

 - Best choice for Ni-based super alloys, providing predictable tool life and toughness for a variety of components and conditions.

 - Designed to deliver reliable, predictable performance for the demanding milling applications found in aerospace and energy industries.

 - Can be applied for both continuous cut and interrupted cut.