North American Aerospace Machine Shops’ Carbide Insert Grade Selection for Titanium Milling

Precision carbide tooling in aerospace manufacturing. Product images from derekmal.com are currently unavailable — this article uses industry-representative imagery. Titanium's low thermal conductivity and high chemical reactivity make standard Carbide Inserts fail within minutes — ISO K-series grades should never be specified for aerospace titanium work. ISO S-series carbide grades with TiAlN or Al2O3 coatings maintain hot hardness above 900°C, delivering 3–5x longer tool