Kyocera TPMR160304 CA115P TML00433 Turning Insert - Steel Finishing

Product Overview

The TPMR160304 CA115P TML00433 is a premium triangle insert manufactured by Kyocera in Japan. Engineered for steel finishing applications, this insert combines advanced PVD coating technology with a precision-ground carbide substrate to deliver exceptional performance in CNC turning operations. The 0.4mm nose radius and 3.97mm thickness provide optimal cutting geometry for consistent chip formation and superior surface finish across a wide range of steel workpiece materials.

ISO Designation Breakdown

The TPMR160304 follows the ISO 1832 standard indexable insert designation system:

• T — Triangle shape (Equilateral triangle with 60° included angle)
• P — 11° positive clearance angle
• M — Tolerance class ±0.13mm (inscribed circle & thickness)
• R — Cylindrical hole with counterbore (single-sided clamping)
• 16 — 16mm inscribed circle diameter (IC)
• 03 — 3.97mm nominal thickness
• 04 — 0.4mm nose radius

Engineering Dimensions & Geometry

Grade Details — Key Grade Characteristics

CA115P is a PVD-coated carbide grade specifically developed for steel machining (ISO P15 application group). The multi-layer PVD coating combines TiAlN and TiN layers to provide outstanding wear resistance, thermal stability, and extended tool life in continuous and light interrupted cutting.

• Substrate: Fine-grained tungsten carbide (WC-Co) with 10% cobalt binder
• Coating: Multi-layer PVD (TiAlN + TiN), 2–4 μm total thickness
• Hardness: 1,600 HV (Vickers hardness)
• Transverse Rupture Strength: 2,800 MPa
• Application Group: ISO P15 (steel machining)
• Max Operating Temperature: 800°C
• Color: Bronze-gold (PVD characteristic)

Grade Comparison Matrix

Chipbreaker Profile

The TPMR160304 features a standard positive chipbreaker geometry optimized for light to medium finishing cuts in steel. The open-groove design promotes smooth chip evacuation and reduces cutting forces, making it ideal for applications requiring excellent surface finish and dimensional accuracy.

• Open groove chipbreaker for low cutting forces
• Optimized for finishing depths of cut (0.1–1.5mm)
• Smooth chip curl radius for reliable evacuation
• Positive rake angle for reduced friction and heat generation

Recommended Applications & Workpiece Materials

The TPMR160304 CA115P is optimized for the following materials and application scenarios:

• Carbon Steels: C35, C45, C50, 1045, 1050 — Excellent finish at high speeds
• Alloy Steels: 4140, 4340, 16MnCr5, 20MnCr5 — Consistent tool life
• Tool Steels: H13, D2, O1 — Pre-hardened material finishing
• Bearing Steels: 100Cr6, 52100 — Precision surface requirements
• Stainless Steels (limited): 303, 416 — Free-machining grades only

Note: For austenitic stainless steels (304, 316), consider grade CA6535 or PR1225 for optimal performance.

Application Map by Operation

Recommended Cutting Conditions

Values are starting recommendations. Adjust based on machine rigidity, coolant application, and workpiece condition. Use lower end for interrupted cuts or less rigid setups.

Operating Guidelines

• Coolant: Flood coolant recommended at 6–8% concentration for optimal chip evacuation and thermal management. Minimum flow rate 5 L/min directed at the cutting edge.
• Tool Overhang: Keep tool overhang to minimum possible (≤4× shank diameter for boring bars). Excessive overhang promotes vibration and chatter marks.
• Insert Seating: Clean toolholder pocket and insert seat thoroughly before mounting. Use torque wrench for screw clamping (recommended 2.5–3.5 N·m).
• Edge Preparation: Do not touch the cutting edge with bare fingers. Oils and moisture can promote micro-chipping at high temperatures.
• Wear Monitoring: Monitor for flank wear (VBmax = 0.3mm) and crater wear (KT = 0.15mm). Replace insert before catastrophic failure to protect workpiece surface.
• Speed Ramping: When starting a new batch, begin at 70% of recommended Vc and increase incrementally to find the stable operating window for your specific machine and setup.

Toolholder Compatibility

The TPMR160304 is compatible with standard STFCR/L and MTFNR/L toolholders designed for triangle inserts with 16mm IC. Ensure the toolholder pocket angle matches the 11° positive clearance for optimal seating and cutting performance. Recommended clamping systems include lever-lock and screw-down styles for secure insert retention during high-speed operations.

• Toolholder series: STFCR, STFCL, MTFNR, MTFNL
• Clamping: Lever type or screw clamp
• Insert seat angle: 11° positive
• Compatible shank sizes: 16×16mm, 20×20mm, 25×25mm

Packaging & Ordering Information

• Packaging: Each insert is individually sealed in anti-corrosion VCI (Volatile Corrosion Inhibitor) film and packed in Kyocera-branded plastic boxes of 10 inserts.
• Minimum Order: 10 inserts (1 box). Bulk pricing available for quantities of 50, 100, and 500 inserts.
• MPN: TML00433 — Use this manufacturer part number for precise ordering and inventory tracking.
• Batch Number: 26-6037 — Traceability code for quality control and warranty claims.
• Warranty: 12-month manufacturer warranty against material and coating defects under normal operating conditions.
• Storage: Store in original packaging at 15–25°C, humidity <60% RH. Avoid direct sunlight and contact with corrosive chemicals.

Catalog Meta Data