DESCRIPTION

Product Overview

The WNMA080408 CD3105 is a heavy-duty, double-sided 80° trigon negative turning insert engineered specifically for high-speed, continuous turning and finishing of highly abrasive ISO K-Class materials (Grey Cast Iron, High-Alloy Cast Iron, and Nodular/Ductile Iron). Featuring a classic flat-top design (A), this insert provides maximum cutting edge support and rigid mass, making it impervious to the micro-chipping caused by hard inclusions. Paired with the ultra-hard CD3105 CVD-coated grade, it delivers market-leading wear resistance and thermal stability under high-velocity dry or wet cutting.

2. Technical Specifications

• ISO Code: WNMA080408 (ANSI: WNMA432)

• Grade: CD3105 (Premium CVD  coating, optimized for ISO K05–K15 high-speed cast iron ranges)

• Shape: W-Shape (80° Trigon / Trigonometric)

• Relief Angle: N-Type (0° Negative rake, double-sided with 6 usable cutting edges for outstanding process economy)

• Nose Radius: 0.8 mm (R0.8 / 1/32") – High-stability radius balancing edge strength with consistent surface roughness quality.

• Chipbreaker: Flat-Top Design (No chipbreaker – maximum cross-sectional strength for short-chipping materials like cast iron)

• Machining Condition: High-speed continuous turning, stable setups, and heavy abrasive wear applications.

Typical Applications

• Automotive Production: Semi-finish and medium turning of transmission gears, drive axles, and wheel hubs.

• Machinery Components: General machining of structural steel brackets, heavy-duty hydraulic cylinders, and threaded steel rods.

• Job Shop Batch Turning: Ideal for CNC workshops requiring a reliable, high-yield universal insert to process various steel components without constant setup adjustments.

2.Grades:

CNC Inserts - Frequently Asked Questions

1. How do I choose the right grade for my specific machining application?

Choosing the correct grade is crucial for tool life and performance. We provide a comprehensive Grade Cross-Reference Chart that maps our CD Carbide grades to major international brands like Sandvik, Mitsubishi, and Kyocera. If you are unsure, simply provide us with the workpiece material (P, M, K, S, H) and machining conditions, and our engineers will recommend the best solution.

2. Can you provide customized CNC tools based on our drawings?

Yes. As a factory-direct manufacturer, we specialize in bespoke engineering. Whether you need non-standard dimensions, specific chipbreakers, or customized coatings for unique alloys, our technical team can develop products based on your technical drawings (PDF/STEP) or physical samples.

3. Do you offer free samples for testing before bulk orders?

We understand that "trial cutting" is the only way to verify tool stability. We offer sample packs for professional buyers to test performance on their own CNC machines. Please contact our sales team with your machine specifications and the material you are processing to request your trial samples.

4. How do you ensure the quality consistency of your carbide inserts?

Our quality control is integrated into every step of the production process in Zhuzhou. We use high-purity tungsten carbide powder and advanced PVD/CVD coating equipment. Each batch undergoes rigorous inspection, including microscopic edge analysis and hardness testing, to ensure that the performance of the 1,000th insert is identical to the 1st.

5. What is the typical lead time for international B2B orders?

For standard models in stock (such as WNMG, CNMG, etc.), we usually ship within 3-5 business days. For customized tools or large-volume OEM orders, the production cycle typically ranges from 2 to 4 weeks, depending on the complexity of the design and coating requirements.

6. Are you a manufacturer or a trading company?

We are a direct manufacturing enterprise based in Zhuzhou, the hunan of China’s tungsten carbide industry. By cutting out the middleman, we provide factory-direct pricing and faster technical support. This allows us to offer more flexible MOQs (Minimum Order Quantities) for small-to-medium-sized distributors and specialized machine shops.