Overview

The GSX MILL Roughing (GSXRE) is a high-efficiency milling tool designed for rough machining with improved fracture resistance and durability. It features an optimized cutting edge and nick shape, combined with a multi-layered Al-Cr-Ti alloy GSX coating that enhances heat and wear resistance, enabling high-speed dry milling of hard materials.

Key Features and Benefits

• Improved fracture resistance through optimized cutting edge and nick design.
• GSX coating provides superior heat and wear resistance, extending tool life.
• Excellent chip ejection due to wide gash pockets, reducing cutting vibration.
• Stable machining performance with minimal chipping even in grooving operations.
• Supports high-speed dry milling of very hard materials including hardened steels and heat-resistant alloys.

Recommended Usage and Conditions

• Use with highly rigid machining centers and holders to ensure stable machining.
• Wet machining is recommended for stainless steels, nickel alloys, and titanium alloys.
• For contour milling (pocket machining), reduce feed rates to 25% of chart values for diameters under 10mm and 20% for diameters above 10mm, except when using horizontal machining centers or when chips can be easily removed by air or coolant.

Cutting Parameters

Cutting conditions vary by work material and milling type (side milling or grooving). Key materials include structural steels, stainless steels, nickel and titanium alloys, cast irons, alloy steels, pre-hardened steels, and hardened steels. Parameters such as feed rate (mm/min) and rotation speed (min-1) are specified for different tool diameters (4mm to 20mm) and depths of cut (ap and ae values).

Examples of feed and rotation speeds for side milling (structural steels, 150-250HB):

• Diameter 4mm: Feed 700 mm/min, Rotation 5400 min-1
• Diameter 20mm: Feed 520 mm/min, Rotation 1050 min-1

Similar detailed tables are provided for other materials and grooving operations.

Tool Specifications

The catalog lists various GSXRE tool codes with corresponding diameters (Dc), cutting lengths (ℓ), overall lengths (L), chamfer sizes (C), shank diameters (Ds), and reference prices. Diameters range from 4mm to 20mm with cutting lengths from 0.2mm to 1mm and shank diameters from 6mm to 20mm.

Performance Comparison

Graphs and test data demonstrate that GSX MILL Roughing tools exhibit lower cutting vibration and better chip evacuation compared to competitor products, resulting in more stable machining and reduced chipping during grooving and pocket milling.

Coating Characteristics

• GSX coating is a multi-layered Al-Cr-Ti composite film.
• Hardness and oxidation onset temperature are superior compared to TiN, TiCN, TiAIN coatings.
• Supports high-speed dry machining of high hardness materials.

Recommendations and Best Practices

• Use rigid machines and holders for stable cutting.
• Apply wet machining for stainless steel, heat-resistant alloys, and titanium alloys.
• Adjust feed rates for pocket machining as specified to prevent tool damage.
• Ensure proper chip removal to maintain machining efficiency.

Contact and Support

Contact information for various regional offices in Japan and international sales is provided for inquiries and support.

Summary

The GSX MILL Roughing GSXRE series offers enhanced durability and efficiency for rough milling applications, especially in hard-to-machine materials. Its advanced coating and optimized design reduce tool wear and chipping, enabling higher productivity and longer tool life under demanding conditions.