DEX Series

Extend Tool Life by 266% in Aviation Titanium Machining! DEX Series Milling Cutters for Titanium – The Hardcore Solution to "Heat, Adhesion, Hardness"

Tired of edge softening, frequent chipping, and loss of precision when machining TC4/TC18 titanium alloy?
The DEX Series Milling Cutters for Titanium are engineered for extreme machining of aerospace-grade titanium.
Featuring premium DEX20 super-hard, high-red-hardness material with surface hardness up to HRC 67-69, maintaining HRC 58+ hardness even at 650°C – completely solving the problem of thermal edge softening. The ultra-fine grain substrate paired with AlTiN+Si nano-coating delivers 3 times higher wear resistance and a tool life of 220 minutes per tool with trouble-free cutting.
From heavy roughing to precision side milling – ensure every cut is a success.

Core Selling Points:

Core Advantage	Technical Analysis	User Value
Specialized Material – DEX20 Core	Made from Hitachi Metals' DEX20 high-carbon, high-vanadium powder metallurgy high-speed steel, featuring fine and uniform carbides, combining ultra-high hardness with excellent toughness.	Custom-formulated for titanium, offering 3 times the wear resistance of M42 HSS and 1.25 times that of ASP23.
Extreme Red Hardness	Undergoes vacuum quenching and tempering to achieve surface hardness HRC 67-69; maintains HRC 58+ hardness even at 650°C.	Withstands the extreme heat of titanium cutting, enabling stable machining even without forced cooling – completely eliminating edge softening.
Balanced Toughness – Chip Resistance	Impact energy reaches 25-30 J/cm², approaching the level of low-alloy tool steels, with a bending strength of 3500-4000 MPa.	Under heavy cutting impacts, the chipping rate drops from 8.0% to 0.02% , ensuring 200 minutes of chipping-free cutting.
AlTiN+Si Nano-Coating	Equipped with high-temperature resistant coating technology, capable of withstanding cutting temperatures above 800°C, with a low friction coefficient.	Effectively suppresses built-up edge, insulates against cutting heat, and extends tool life by 50%-100% compared to standard cutters.
Sharp Edge Geometry	Features a large rake angle and sharp cutting edge design, with optimized chip evacuation flutes.	Reduces cutting resistance, ensures smooth chip flow, and improves side wall finish.
Precision Grinding – IT5 Grade Accuracy	Precision-ground on imported German Walter, ANKA, and other advanced machines, achieving an edge finish of Ra ≤ 0.01μm.	Delivers stable cutting accuracy to IT5 grade, reducing rework rates from 8.0% to 0.02%, meeting the stringent demands of aerospace components.
Comprehensive Series Selection	Available in a wide range of specifications, including 2-flute, 4-flute, multi-flute, square end, corner radius, and ball nose types.	Covers the entire process from heavy roughing to precision finishing – a perfect solution for every application.

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