DCGT32.51AH KW10 Grade Uncoated Carbide, Indexable Turning Insert For Back Boring, Copying, External Turning, Sub-Spindle

1. Product Overview

The DCGT11T304AH from Kyocera is a precision-engineered KW10 uncoated carbide indexable turning insert manufactured in Japan. Designed primarily for Back Boring, Copying, External Turning, Sub-Spindle, this 55 degree diamond insert delivers exceptional dimensional accuracy, superior surface finish, and extended edge life in demanding CNC machining environments. The neutral configuration with AH chipbreaker geometry ensures reliable chip control across a wide range of cutting parameters.

2. ISO Designation Breakdown

Understanding the ISO nomenclature ensures correct tool selection and replacement:

3. Engineering Dimensions & Geometry

Precise dimensional data for toolholder selection and interference checking:

4. Grade Details – Key Grade Characteristics

The KW10 grade is a fine-grained uncoated carbide optimized for high-speed finishing and semi-finishing of non-ferrous materials. Key characteristics include:

• Substrate: Ultra-fine grain carbide with high hardness and excellent wear resistance
• Coating: Uncoated – ideal for machining materials where built-up edge is a concern
• ISO Application Group: K10 classification for machining cast iron, non-ferrous metals (aluminum, copper, brass), plastics, and titanium alloys
• Edge Preparation: Sharp cutting edge optimized for low cutting forces and minimal burr formation
• Thermal Stability: Maintains hardness at elevated temperatures during dry machining

5. Grade Comparison Matrix

6. Chipbreaker Profile

The AH chipbreaker geometry is specifically engineered for turning operations with the following features:

• Land Width: Narrow land design for reduced cutting pressure and improved surface finish
• Groove Depth: Optimized for chip curling and controlled breakage in finishing to medium machining
• Chip Control: Effective chip evacuation for both short-chipping (cast iron) and long-chipping (aluminum) materials
• Edge Stability: Reinforced cutting edge corner for improved resistance to chipping under intermittent cuts

7. Recommended Applications & Workpiece Materials

This insert excels in the following material groups and application scenarios:

• Aluminum & Aluminum Alloys: Excellent mirror finish capability due to sharp uncoated edge preventing built-up edge
• Copper & Brass: Ideal for electrical component machining requiring burr-free edges
• Cast Iron (Gray & Ductile): Stable performance in finishing operations with good wear resistance
• Titanium Alloys: Suitable for low-speed, high-precision titanium finishing where heat generation must be minimized
• Plastics & Composites: Clean cuts without material melting or fiber pull-out

8. Application Map by Operation

9. Recommended Cutting Conditions

Starting parameters for KW10 uncoated carbide. Adjust based on machine rigidity and workpiece condition:

10. Operating Guidelines

• Tool Presetting: Ensure insert seating surface is clean and free of chips before clamping
• Cutting Fluid: Not mandatory for aluminum and cast iron; flood coolant recommended for titanium to prevent work hardening
• Depth of Cut: Do not exceed 2× corner radius for finishing passes to maintain surface quality
• Speed Ramp: Start at lower Vc and increase gradually while monitoring tool wear and surface finish
• Insert Change: Index to fresh edge when flank wear exceeds 0.15 mm or when surface finish degrades
• Storage: Keep inserts in original packaging away from moisture and corrosive environments

11. Toolholder Compatibility

This 55 degree diamond insert requires compatible neutral toolholders with the following characteristics:

• Toolholder Series: DCGT – ISOI standard holders
• Clamp System: Lever lock or top-clamp for secure insert retention
• Insert Seat Angle: Must match 55° included angle
• Shank Size: Select based on machine turret and workpiece reach requirements
• Coolant Delivery: Through-tool coolant holders recommended for deep cavity machining

12. Packaging & Ordering Information

13. Catalog Meta Data

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