Kyocera DNMG150404GP CA525 TAC02051 CNC Insert - Steel Machining

Product Overview

The DNMG150404GP CA525 TAC02051 is a premium indexable carbide turning insert manufactured by Kyocera in Japan. Designed for precision CNC turning operations, this insert features an optimized General Purpose chipbreaker geometry that ensures superior chip control, reduced cutting forces, and exceptional surface finish quality across a wide range of steel machining applications.

With its rhombic 55° shape and precision-ground cutting edges, the DNMG150404GP delivers consistent dimensional accuracy and extended tool life, making it the preferred choice for high-volume production environments in automotive, aerospace, and general engineering sectors.

ISO Designation Breakdown

Engineering Dimensions & Geometry

Grade Details – Key Grade Characteristics

CA525 is a high-performance PVD-coated carbide grade specifically developed for steel machining. The grade combines a fine-grained WC-Co substrate with a multi-layer TiAlN/TiN PVD coating to achieve an optimal balance between wear resistance and toughness.

• Coating: Multi-layer PVD (TiAlN + TiN) – provides excellent oxidation resistance up to 900°C
• Substrate: Fine-grained tungsten carbide with 10% cobalt binder – ensures high toughness and edge stability
• Hardness: 1,620 HV – suitable for high-speed cutting operations
• Transverse Rupture Strength: 3,200 MPa – resists chipping under interrupted cuts
• Color Code: Copper-bronze – easy visual identification in tool cribs
• Application Range: ISO P15-P35 – ideal for medium to rough machining of steels

Grade Comparison Matrix

Chipbreaker Profile

The GP chipbreaker geometry on the DNMG150404GP is engineered with a precisely calculated groove and land combination to optimize chip formation and evacuation. The chipbreaker features a positive rake angle design that reduces cutting forces by up to 15% compared to standard geometries, minimizing heat generation and extending insert life.

• Chipbreaker Type: General Purpose
• Rake Angle: 8° positive
• Land Width: 0.15 mm
• Groove Depth: 0.08 mm
• Chip Control Range: Excellent for short curly chips in continuous to light interrupted cuts
• Surface Finish Capability: Ra 0.4–1.6 μm depending on cutting parameters

Recommended Applications & Workpiece Materials

Application Map by Operation

Recommended Cutting Conditions

Parameters below are starting recommendations for continuous cutting of carbon steel (C45 / 1045). Adjust based on machine rigidity, workpiece condition, and desired surface finish.

Operating Guidelines

• Coolant: High-pressure water-miscible coolant (5-8% concentration) recommended. Minimum pressure 10 bar for chip evacuation in deep cavities.
• Tool Overhang: Keep tool overhang to minimum possible. For external turning, overhang should not exceed 1.5× toolholder shank height.
• Insert Seating: Ensure insert pocket is clean and free of chips before seating. Torque clamping screw to 2.5–3.0 Nm.
• Edge Preparation: Do not re-sharpen or hone edges. Use inserts until flank wear reaches 0.3 mm or chipping occurs.
• Entry Angle: Maintain 93°–107.5° tool approach angle for optimal chip control and reduced notch wear.
• Vibration: If chatter occurs, reduce cutting speed by 20% and increase feed rate by 15% before investigating toolholder rigidity.

Toolholder Compatibility

The DNMG150404GP is designed for use with standard DNMG-compatible toolholders. Recommended series include:

Note: R/L designation indicates right-hand or left-hand toolholder. Select based on machine configuration and part geometry.

Packaging & Ordering Information

• Packaging: Each insert is individually packed in protective plastic blister packs to prevent edge damage during transit.
• Minimum Order Quantity: 10 inserts per pack (standard industrial pack size).
• MPN (Manufacturer Part Number): TAC02051
• Barcode: EAN/JAN codes available upon request for inventory management integration.
• Storage: Store in original packaging at room temperature (15–25°C) with humidity below 60% RH to prevent coating oxidation.
• Shelf Life: 5 years from date of manufacture when stored in recommended conditions.

Catalog Meta Data

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