CoroMill® MH20
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CoroMill® MH20 High feed milling Best-in-class high-feed pocketing Time to level up your high-feed milling operations with best-in-class CoroMill® MH20. This is a versatile tool with a large application area, but is primarily designed for pocketing applications in ISO S, M and P materials. Thanks to its light-cutting action, in combination with a robust shank design, CoroMill® MH20 ensures secure and vibration-free machining, even with long overhangs.

Robust cutter body The robust cutter body with increased strength assures a longer tool life and excellent stability at long overhangs. An open insert pocket design and a secure insert position ensure reliable machining with excellent chip evacuation and less vibration. A new cutter body material that provides higher fatigue and deformation resistance, assuring a longer cutter tool life. Internal coolant for optimal chip evacuation and high productivity in ISO S applications. Maximal diameter cylindrical shank that can be cut off to optimize stability at various desired overhang...

• High-feed concept suitable for many milling operations helps to reduce the number of tools, thus reduce the cycle time • Excellent stability at long overhangs with minimum vibrations thanks to a light-cutting action and a robust tool design • Optimized edge-line security for reliable corner machining and pocket milling makes unsupervised machining possible • Open insert pocket design for excellent chip evacuation • Light-cutting action ensures less power consumption and hence enables the use of smaller machines • Creates better surface finish with smaller cusps leaving less stock for the...

C ustomer challenges in ISO S Applications • Aerospace frame open and closed pocket milling • Full slotting and hole making with helical ramping cycles • Long overhang cavity milling • Low engagement shoulder milling • Multi-task turn milling • Chip evacuation • Insert security and reliability • Tool life • Cutter body damage (chip rubbing) • Use E-L30 geometry for excellent chip formation and evacuation in sticky materials. • The curved main cutting edge provides maximum security against notch wear and the reinforced insert corner makes corner machining reliable. The improved tool body...

C ustomer challenges in ISO M Applications • Oil and gas open and closed pocket milling • Full slotting and hole making with helical ramping cycles • Long overhang cavity milling • Low engagement shoulder milling • Multi-task turn milling • Chip formation • Insert security and reliability • Long overhang machining • Predictable and repeated tool life • Use E-L30 geometry for excellent chip formation and evacuation in sticky materials. • The curved main cutting edge provides maximum security against notch wear and the reinforced insert corner makes corner machining reliable. The improved...

Customer challenges in ISO P Applications • Mould cavity pocket milling up to HRC 48 • Mould base deep cavity milling • Die block corner machining • Low engagement shoulder milling • High cutting forces • Long overhang machining • High metal removal rates • Long contact time • Higher hardness • M-M20 and M-M50 geometries are optimized for higher edge-line security in high-alloy ISO P applications. • Use light cutting geometry M-M20 for trouble-free machining at long overhangs. The robust shank design ensures better stability and less deflection. • Use strong M-M50 geometry for the highest...

Performance test, ISO S Component:Aerospace wing support Material: S4.3.Z.AN (Ti6Al4V) Operation:Pocketing Machine: Okuma M560V-Genos, CAT40 BIG-PLUS® CoroMill® 415 Tool overhang, mm(inch) n, rpm ( vf, mm/min in/min) Tool life, min Result: With CoroMill® MH20, the customer improved tool life by 32% and achieved a much higher component surface quality. The insert corner of CoroMill® MH20 showed better edge-line security and less vibration tendency. Performance test, ISO M Component:Food processing machine component Material: M1.0.Z.AQ (AISI 304) Operation:Side and face milling Machine: DMG...

Sustainability with CoroMill® MH20 New cutter body material increasing the strength, and inserts with high edge-line security, assure a longer tool life and reliable machining with less scrap. In addition, with less vibrations and a more reliable concept design, the risk of tool breakage is reduced, making the operator’s and workplace environment safer. With a better surface finish achieved, the need for a semi-finishing tool is greatly reduced. This also means fewer tools in use, fewer stoppages and a quicker machining process with less inventory. Not least, this light-cutting concept uses...