DNMG150404GP CA115P TML00132

Product Overview

The DNMG150404GP CA115P TML00132 is a premium general purpose chipbreaker for versatile steel machining applications manufactured by Kyocera. This indexable carbide insert features a 55° Diamond (DN) with 4 usable cutting edges, delivering exceptional value and productivity in CNC turning operations. The CA115P grade employs advanced CVD multi-layer coating technology with a highly oriented alumina layer and specialized TiCN coating, providing outstanding wear resistance and extended tool life in steel machining applications.

Designed for steel general machining, this insert combines a robust carbide substrate with optimized chipbreaker geometry to ensure reliable chip control, minimal cutting forces, and superior surface finish quality. The General Purpose chipbreaker profile is specifically engineered to handle 1.0 – 4.0 mm depths of cut at feed rates of 0.20 – 0.60 mm/rev, making it ideal for high-efficiency production environments.

ISO Designation Breakdown

Engineering Dimensions & Geometry

• Inscribed Circle Diameter (IC): 15.875 mm (5/8")
• Insert Thickness (S): 4.76 mm (3/16")
• Hole Diameter (D1): 6.35 mm
• Corner Radius (RE): 0.4 mm
• Clearance Angle: 0° (Negative type)
• Inscribed Circle Shape: 55° Diamond (DN)
• Number of Cutting Edges: 4
• Chipbreaker Geometry: General Purpose optimized for steel general machining
• Edge Preparation: Strong general-purpose edge with moderate hone and positive rake
• Surface Finish: Black rake face (highly oriented alumina) / Gold flank (TiCN + alumina)

Grade Details - Key Grade Characteristics

The CA115P grade represents Kyocera's next-generation CVD-coated carbide technology specifically developed for steel machining applications. Key characteristics include:

• Coating Architecture: Multi-layer CVD coating featuring a highly oriented alumina (Al₂O₃) layer on the rake face for superior crater wear resistance, combined with a unique TiCN layer and hard surface layer on the flank for abrasion resistance.
• Carbide Substrate: Newly developed substrate with enhanced resistance to plastic deformation and improved temperature strength, enabling higher cutting speeds and longer tool life.
• Color Identification: Black rake face with gold flank finish for easy visual identification of used corners and edge wear patterns.
• Application Range: Optimized for continuous to light-interrupted machining of carbon steel, alloy steel, and bearing steel.
• Performance Benefits: Up to 2× longer tool life compared to conventional CVD grades, with stable machining performance and predictable tool wear.
• Chip Control: Compatible with an extensive range of chipbreakers from precision finishing (PG, XS) to medium-roughing (HQ, CQ), ensuring optimal chip evacuation across all applications.

Grade Comparison Matrix

Compare CA115P with other Kyocera steel-turning grades to select the optimal solution for your machining environment:

Chipbreaker Profile

The GP chipbreaker on the DNMG150404GP is Balanced chipbreaker geometry offering reliable chip control across a wide range of feeds and depths. This geometry delivers the following performance characteristics:

• Chip Control Range: Effective chip breaking across 1.0 – 4.0 mm depth of cut and 0.20 – 0.60 mm/rev feed rates.
• Cutting Force: Optimized rake angle and breaker groove minimize cutting forces, reducing machine load and improving dimensional accuracy.
• Surface Finish: Delivers good surface finish (Ra 0.8–1.6 µm) across recommended parameters.
• Edge Stability: Reinforced cutting edge with optimized land width for stability under varying loads.
• Chip Evacuation: Reliable chip breaking and evacuation even in deep-cut and high-feed applications.

Recommended Applications & Workpiece Materials

The DNMG150404GP CA115P is specifically recommended for the following materials and applications:

• Primary Materials: Carbon steel, alloy steel, forged steel (ISO P)
• Hardness Range: < 300 HB (optimal performance below 280 HB)
• Ideal Operations: External roughing, semi-finishing, face machining, taper turning
• Industry Sectors: Automotive components, aerospace parts, general machinery, energy sector, mold and die manufacturing
• Workpiece Examples: Shafts, gears, bearings, flanges, valves, hydraulic components, threaded parts, pulleys

Application Map by Operation

Refer to the table below for operation-specific suitability and recommended parameters:

Recommended Cutting Conditions

The following cutting parameters are recommended for the DNMG150404GP CA115P with General Purpose chipbreaker:

Note: Values are starting recommendations. Optimize based on machine rigidity, workpiece stability, and coolant application. Wet cutting is recommended for extended tool life.

Operating Guidelines

• Coolant: Flood coolant recommended for chip evacuation and temperature control. Minimum 5% emulsion concentration. Avoid direct coolant jet on cutting edge when machining interrupted cuts.
• Tool Overhang: Minimize tool overhang to maintain rigidity. For internal turning, use the shortest boring bar possible to reduce vibration.
• Insert Mounting: Ensure holder pocket is clean before insert installation. Torque clamping screw to manufacturer specification (typically 2.5–3.5 N·m for M2.5 screws).
• Edge Inspection: Inspect cutting edges before use. Do not use inserts with visible chipping or cracks. The gold flank makes wear detection easy.
• Indexing: Rotate or flip insert to fresh edge when flank wear (VB) reaches 0.2–0.3 mm, or when surface finish deteriorates.
• Storage: Store inserts in original packaging away from direct sunlight and moisture. Avoid contact between inserts to prevent edge damage.
• Safety: Always wear safety glasses and gloves when handling inserts. Cutting edges are extremely sharp.

Toolholder Compatibility

The DNMG150404GP insert is compatible with the following Kyocera and standard ISO toolholders:

• External Turning: MDJNR, MDJNL, PDJNR, PDJNL, SDJNR, SDJNL series toolholders with 93° or 107° approach angle. Compatible with standard external and internal turning holders for DNMG 15.875 mm inserts.
• Internal Turning: Use with appropriate boring bar holders matching the insert size and shape.
• Clamping System: Lever-lock or screw-clamp systems with 40°–60° countersink compatibility.
• Approach Angle: 93°–107° for optimal chip flow and surface finish.
• Holder Material: Steel or carbide-reinforced holders for high-speed applications.

Packaging & Ordering Information

• Packaging Quantity: 10 inserts per sealed plastic container
• Packaging Type: Individual insert pockets in protective plastic case with foam lining
• MPN (Manufacturer Part Number): TML00132
• Product Code: DNMG150404GP-CA115P
• Country of Origin: Japan
• HS Code: 8209.00
• Weight (per insert): ~0.008 kg
• Minimum Order: 1 pack (10 pieces)
• Bulk Orders: Volume discounts available for quantities above 100 inserts. Contact our technical sales team for quotation.

Catalog Meta Data

• Catalog Number: T-DNMG150404GP-CA115P-5489
• Series: CA115P/CA125P Next-Generation CVD Grade for Steel
• Product Family: Indexable Turning Inserts – Negative Type
• ISO Application Group: ISO P (Steel Machining)
• Coating Generation: 3rd Generation CVD (Black & Gold)
• Substrate Technology: High-temperature resistant carbide with enhanced plastic deformation resistance
• Chipbreaker Generation: Smart P-Series (PG, PP, PQ, PH, PMG, WP, WF, WE, WQ, GP, HQ, CQ, XQ, XS, CJ)
• Replacement For: CA105P, CA110P, competitor CVD steel grades (T***15, GC***15 series)
• Date Added to Catalog: 2023-Q2
• Technical Documentation: Cutting condition tables, application guides, and CAD models available upon request