Kyocera TNMG160408XQ CA515 TAB06321 Finishing - High-Precision Steel

Product Overview

The TNMG160408XQ CA515 TAB06321 is a premium CVD-coated carbide turning insert manufactured by Kyocera for demanding steel machining applications. This precision finishing insert combines an advanced TiCN+Al₂O₃+TiN multi-layer coating with a deformation-resistant carbide substrate to deliver exceptional wear resistance, thermal stability, and extended tool life. Engineered for precision finishing, the XQ chipbreaker geometry ensures superior chip control and surface finish quality across a wide range of cutting parameters. Whether you are performing continuous finishing or light interrupted cutting, this insert provides the reliability and precision required for high-volume production environments in automotive, aerospace, and general manufacturing sectors.

ISO Designation Breakdown

The TNMG160408XQ designation follows ISO 1832 standard nomenclature for indexable inserts:

Engineering Dimensions & Geometry

All dimensions conform to ISO 13399 standard. Measurements verified at 20°C ±1°C.

Grade Details – Key Grade Characteristics

The CA515 grade belongs to Kyocera's advanced CA5 series CVD-coated carbide family:

• Advanced CVD Coating: Multi-layer architecture (TiCN base + α-Al₂O₃ intermediate + TiN top) provides 40% improved interface adhesion and controlled crystal growth for superior wear and fracture resistance.
• High-Temperature Substrate: Special carbide substrate with 10% improved hardness at elevated temperatures resists thermal deformation during high-speed machining.
• Optimized for Steel: ISO P15–P35 classification covers carbon steels, alloy steels, and cast steels with consistent performance from finishing to medium-roughing.
• Gold Color Identification: TiN top layer provides easy visual grade recognition and low friction coefficient at the chip-tool interface.
• Balanced Toughness & Wear Resistance: Ideal for continuous to light interrupted cuts where both flank wear resistance and edge chipping prevention are critical.

Grade Comparison Matrix

Select the optimal CA5-series grade for your specific steel machining requirements:

Chipbreaker Profile

The XQ chipbreaker combines an extended land design with a micro-polished rake surface for superior wear resistance in medium-finishing applications. The breaker features twin dots at the cutting edge that enhance chip curling and breaking, even at small depths of cut.

Recommended Applications & Workpiece Materials

• Primary Materials: Carbon steel, alloy steel, mild steel, bearing steel
• Hardness Range: 125–300 HB (optimal 150–250 HB)
• Ideal Operations: Precision Finishing
• Industry Sectors: Automotive components (shafts, gears, hubs), aerospace fasteners, energy sector valves and fittings, general machinery parts, mold and die components
• Machine Types: CNC turning centers, Swiss-type lathes, multi-spindle automatics, vertical turning lathes (VTL), boring mills

Application Map by Operation

Suitability ratings for common turning operations with this insert:

Recommended Cutting Conditions

Starting parameters for CA515 with TNMG160408XQ. Adjust based on machine rigidity, coolant, and workpiece condition:

Operating Guidelines

• Coolant Recommendation: Flood coolant recommended for optimal chip evacuation and thermal management. High-pressure coolant enhances tool life in deep cavity machining.
• Edge Preparation: Do not re-sharpen or re-coat. Use inserts until all 6 edges are consumed for maximum economy.
• Storage: Keep inserts in original packaging until use. Store in a dry environment below 30°C and 60% relative humidity.
• Handling: Handle with clean gloves to prevent edge chipping from skin oils or contaminants. Avoid dropping inserts.
• Machine Rigidity: Ensure toolholder and machine spindle rigidity. Minimize overhang to reduce vibration, especially for finishing operations.
• Entry Strategy: Use ramp or helical entry for facing operations. Avoid direct plunging into solid material.

Toolholder Compatibility

Compatible toolholder families for TNMG160408XQ negative inserts:

• External Turning: MTJNR/L 16, DTJNR/L 16, PTJNR/L 16, STGCR/L 16
• Internal Boring: S16Q-MTJNR/L, A16R-SDUCR/L (with adapter)
• Toolholder Style: 90° tool approach angle, negative rake seat
• Clamp Type: Lever lock or top clamp for TNMG inserts
• Shim Requirement: Standard shim seat for 16-size negative inserts

Packaging & Ordering Information

Catalog Meta Data