ME90 Series
Helical Shell Mill for Difficult-to-Machine Materials
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Kyocera's High-Rigidity Helical Shell Mill
The ME90 delivers stable, long-tool-life machining in titanium alloys and other difficult-to-machine materials. A high-rigidity differential-screw toolholder minimizes deflection, special arc-land insert geometry keeps cutting-edge temperatures down, and the new PM335S grade resists chipping. From aerospace structural components to heat-resistant alloy parts, the ME90 is built to keep your spindle running and your edges intact.
Rigidity + Stability
Titanium machining brings excessive vibration and fluctuating cutting loads that chip cutting edges. The ME90 counters this with a differential-screw clamping design that preserves cutter body wall thickness, reducing toolholder deflection by 18% and suppressing chatter even in long-overhang applications.
Tool Life + Economy
Heat concentrated at the cutting edge and serrated chip formation shorten tool life in titanium. The ME90’s arc-land geometry and PM335S grade lower edge temperature and stress for up to 2X longer tool life, while double-sided peripheral inserts with 8 cutting edges keep cost per edge low.
Special Arc-Land Geometry for Longer Tool Life
Newly developed arc-land geometry provides an optimal balance of low cutting forces and cutting-edge strength.
Longer Tool Life
Special arc-land geometry balances low cutting force with edge strength for 1.5X longer tool life compared to competitor inserts in titanium
New Grade PM335S for Stable Machining of Difficult-to-Machine Materials
High-adhesion, high-toughness coating improves chipping resistance.
Maintains high strength even at elevated cutting temperatures.
Combined with a tough carbide substrate, PM335S delivers stable machining and long tool life in difficult-to-machine materials, including titanium alloys.
Case Study
Competitor inserts experienced sudden chipping due to chip packing.
ME90 (PM335S) maintained a stable cutting edge and continued machining for more than twice as long.
Cutting Conditions: Vc = 150 sfm, ap × ae = 2.165" × 1.181", fz = 0.004 ipt, Coolant, Ti-6Al-4V, Ø80mm, BT50
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