Product Overview

The Mold Meister Ball is a high-precision end mill designed specifically for finishing and polishing precision molds. It offers superior accuracy and durability compared to competitor products, enabling less polishing work and more stable machining without chipping.

Key Features and Performance

• Significantly improved runout accuracy during chucking.
• Ball radius tolerance of ±0.003 mm and diameter tolerance of ±0.006 mm.
• Shank diameter tolerance of 0 to -0.005 mm across all sizes.
• Seamless machining from ball edge to outer cutting edge expands radius accuracy range.
• More than twice the tool life compared to competitors.
• Sharp cutting edge geometry for excellent cutting performance.
• Inspection certificates provided to guarantee product precision.

Technical Specifications

Cutting Conditions (Standard):

• Cutting speed: 200 m/min (approx. 5,300 min-1)
• Feed rate: 1,060 mm/min (0.1 mm/tooth)
• Work material example: SKD11 (60 HRC)
• Cutting fluid: Air blow

Cutting Conditions (High Speed): Detailed rotation speeds and feed rates are provided for various ball radii (0.5 mm to 5 mm) and work materials ranging from carbon steels to hardened steels (up to 60 HRC). Users are advised to adjust speeds and feeds based on machine capabilities and workpiece conditions.

Work Materials Compatibility

• Mold steels
• Pre-hardened steels
• Carbon steels
• Alloy steels
• Stainless steels
• Heat-resistant alloys
• Titanium alloys
• Cast irons

Dimensional Data and Stocked Sizes

The catalog lists ball radii from 0.1 mm to 12 mm with corresponding outer diameters, overall lengths, cutting lengths, and shank diameters. All sizes are stocked as standard items.

Precision and Surface Quality

The Mold Meister Ball achieves a radius accuracy of ±3 μm, significantly better than competitor tools (±10 μm). This precision reduces machining step differences and leftover material, resulting in smoother mold surfaces and less finishing work.

Usage Recommendations and Safety Precautions

• Do not use under inappropriate cutting conditions.
• Do not use tools with significant wear or chipping.
• Securely clamp both tool and workpiece during machining.
• Beware of fire hazards from hot chips or sparks during tool breakage; ensure proper shielding and remove flammable materials.
• Do not touch cutting edges with bare hands.
• Keep body and clothing away from rotating tools and flying chips.
• For stainless steel machining, use wet cutting conditions.
• If machine maximum speed is below recommended, use maximum available speed and reduce feed proportionally.
• Adjust cutting conditions if vibration or abnormal noise occurs.

Additional Information

The product specifications are subject to change without notice for improvement purposes. The manufacturer, Nachi-Fujikoshi Corp., provides inspection certificates and supports ISO 9001 quality standards. Contact information for various regional offices and distribution centers in Japan is included.