DEX Corner Radius Milling Cutter For Titanium Alloy

Dohre DEX Series corner radius end mill is specially engineered for stable, high-efficiency machining of titanium alloys and difficult cutting materials.

With a reinforced corner radius design, advanced coating technology, and optimized flute geometry, DEX delivers longer tool life, reduced vibration, and superior performance in high-load roughing and dynamic milling applications.

Material

Manufactured from ultra-fine micro-grain carbide with a grain size below 0.6 μm and 12% cobalt content, ensuring excellent toughness, wear resistance, and cutting stability.

Coating

Applied with HSR118 coating, comparable to JZR coating, offering:

        • High hot hardness and thermal stability up to 1200°C

• Excellent anti-adhesion performance to reduce built-up edge

• Stable cutting performance in titanium and high-alloy materials

Design Features

Featuring a radius-formed flute profile, 8° positive rake angle, and 43° helix angle, this design ensures stable cutting performance under high load conditions, smooth chip evacuation, and high precision machining of difficult cutting materials.

Flute Geometry

Adopts an unequal helix U-shaped flute design (87° / 93°), providing a larger chip pocket. Ideal for roughing operations and dynamic milling, especially under high material removal rates.

Application Range

The DEX corner radius end mill is suitable for machining materials with hardness HRC 25–60, including:

• Titanium alloys

• Aluminum-titanium alloys

• Stainless steel

• Alloy steel & carbon steel

• Mold steel

• Cast iron

• Non-ferrous metals

Key Advantages

• Reinforced corner radius design improves edge strength and reduces chipping

• Excellent stability under high cutting loads and interrupted cutting

• Optimized for titanium alloy roughing and semi-finishing

• Smooth chip evacuation for dynamic and high-feed milling

• Longer tool life compared to flat end mills in titanium machining

Application of DEX products in processing titanium alloys

Prop Specification:4F-D3XR0.2X8XD650LX4F Processed Material: TC4+A6013 Test Condition: End Face milling • Cutting speed=113m/min • Feed rate=0.042mm/z • Cutting depth=0.5 • Cutiing width=2.1 • Cooling method=Emulsion Test result • After 200minutes of processing, the wear surface width of the cutting tool is 0.08mm, and the wear resistance of dohre cutting tool is better than A!!!

To ensure consistent performance of the DEX corner radius end mill for titanium alloy machining, every tool is produced under strict manufacturing and quality control processes.

Precision Grinding Process

Dohre DEX titanium alloy end mills are all manufactured on Walter 5-axis high precision grinding machines from Germany, ensuring:

•Accurate tool geometry and corner radius consistency

•Sharp and stable cutting edges

•Smooth cutting performance under high load conditions

Edge Preparation & Honing Technology

A fully automated edge preparation system is used, combining:

•Fluid blasting process to remove micro-burrs

•Rubber-bond diamond abrasive polishing for controlled edge honing

This process ensures uniform cutting edge quality, with the edge radius controlled within ±3 μm, improving tool life and machining stability when cutting titanium alloys.

Inspection & Quality Control

Each Dohre DEX series end mill is comprehensively inspected using advanced measuring equipment, including:

•Walter Helichek Plus from Germany for profile and geometry measurement

•150× optical measurement for dimensional accuracy

•300× high-definition visual inspection for surface and edge condition

For corner radius and ball nose tools, radius accuracy is controlled within 3 μm, ensuring high consistency across batches.

Customized solutions are available, including:

•Tool diameter and corner radius

•Flute number and length

•Coating options

•Special geometry for titanium applications

Get In Touch

Do you have a questions or an issues we can help you with?

Let’s talk about your project and how Dohre can help get your tools designed, manufactured and ready for the market.