CNMG120408-PF 4315 CNC Lathe Insert Product Description
Product Overview: Precision Solution for Steel Finishing
CNMG120408-PF 4315 is a high-performance 80° rhombic turning insert launched by Coromant, specifically designed for finishing operations of steel, stainless steel, and cast iron. Equipped with advanced CVD multi-layer coating technology and optimized PF chipbreaker, it achieves excellent tool life while ensuring machining precision, making it an ideal choice for automotive manufacturing, general engineering and other fields.
Core Advantages: Technology-Driven Machining Innovation
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Multi-layer CVD Coating Protection: TiCN+Al₂O₃+TiN triple-layer coating structure combines ultra-high hardness and excellent thermal stability. The Al₂O₃ layer effectively isolates high temperature in the cutting zone, the TiCN layer enhances wear resistance, and the TiN outer layer reduces friction coefficient, increasing tool life by more than 50% compared with traditional coatings.
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PF Finishing Chipbreaker Design: Optimized for steel finishing, the unique groove structure realizes ultra-low cutting force and smoother chip control, avoiding chip wrapping around workpieces or tip damage. Even when machining long-chip materials (such as St37 structural steel), it can produce short and regular chips, significantly improving processing safety.
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High-Rigidity Carbide Substrate: High-strength carbide substrate ensures insert stability during cutting and reduces precision loss caused by vibration. The 80° rhombic structure with 0.8mm corner radius balances machining efficiency and surface quality, suitable for finishing with cutting depth of 0.1-5mm.
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Neutral Cutting Direction: Supports both left-hand and right-hand machining, improving tool holder utilization; 4 effective cutting edges significantly reduce per-part processing cost, with obvious cost-performance advantage.
Technical Specifications: Precise Control of Every Detail
| Parameter Category |
Specific Value |
Description |
| Insert Shape |
80° Rhombic (CNMG) |
ISO standard rhombic structure for external and internal turning |
| Cutting Edge Length |
12.7mm |
Ensures stable cutting contact area |
| Insert Thickness |
4.76mm |
High rigidity design with strong deformation resistance |
| Corner Radius |
0.8mm |
Balances surface roughness and cutting efficiency |
| Coating Type |
CVD TiCN+Al₂O₃+TiN |
Gold+black appearance, multi-layer protection system |
| Applicable Materials |
ISO P (Steel), M (Stainless Steel), K (Cast Iron) |
Various metal materials with hardness ≤45HRC |
| Recommended Cutting Data |
vc: 180-400m/minfn: 0.15-0.5mm/revap: 0.5-5mm |
Adjust according to specific material hardness; medium-high cutting speed is preferred for steel machining |
Application Scenarios: Widely Adapted to Industrial Needs
Core Application Fields: Semi-finishing/finishing of precision components such as automotive parts (tension wheels, gear shafts), wind power equipment (gear rings), and hydraulic parts. In the external turning of 42CrMo alloy steel (285HB), using parameters vc=200m/min and fn=0.35mm/rev, the tool life is increased by more than 50% compared with competitors.
