The specialist AXMT insert with the choice of seven grades of substrate and three chipbreaker geometries has been developed by Sumitomo Electric Hardmetal to meet specific machining demands where lower power machines or less stable application conditions are encountered.
The new inserts bring processing benefits with the ability to maintain high levels or surface finish and each insert has a high rake with a curved wave form to the cutting edge. With a greater width to the insert this creates a more stable seating to support the cutting action.
The seven grades: ACP100, 200 and 300, ACK200 and 300 and ACM 200 and 300 can cut to depths up to 5 mm. ACP100 has the latest ultra-smooth Sumitomo ‘FF’ chemical vapour deposition (CVD) coating giving excellent wear and thermal resistance for high speed and light cutting of steel. ACP200 uses Sumitomo’s ‘Super ZX’ physical vapour deposition (PVD) coating on a tough carbide substrate enabling milling to be maintained at rates up to 1.5 times faster than conventional inserts. This also has the added benefit of high wear resistance. ACP 300 too has ‘Super ZX’ coating and is designed for use under more arduous roughing applications.
The AXMT inserts extend the range of Sumitomo’s successful WEX Wave Mill Series of milling cutter bodies by introducing the WEX Type 1000 for 90 deg shoulder milling applications that also enable pocketing, helical boring, slotting, shoulder milling and ramping cycles to be carried out with the same tool.
The three highly stable cutter body designs incorporate Short Type ‘E’ ‘EL’ and Shell Type ‘F’ which uses a smaller Sumitomo AXMT06 insert that has a high rake ‘wave’ style precision cutting edge. Inserts can be specified from seven substrates ACP, ACK and ACM and three chip breaker geometries –L with 25 deg, -G with 20 deg and higher edge strength –H which has 5 deg. Each is segregated to maximise performance when used respectively on high speed/light cutting, general purpose or roughing applications
Each of the three variants of cutter body provide greater resistance to abrasion and corrosion with enhanced chip evacuation through internal coolant feed. Short Type ‘E’ is available from 10 mm to 25 mm diameter and has between two and seven insert pockets. Short Type ‘EL’ in diameters between 10 mm and 20 mm has between two and four teeth and Shell Type ‘F’ has outside diameters between 32 mm with eight teeth to 63 mm with 14 teeth.
ACP100 has the latest ultra-smooth Sumitomo ‘FF’ chemical vapour deposition (CVD) coating giving excellent wear and thermal resistance for high speed and light cutting of steel. ACP200 uses Sumitomo’s ‘Super ZX’ physical vapour deposition (PVD) coating on a tough carbide substrate enabling milling to be maintained at rates up to 1.5 times faster than conventional inserts.
The ACK200 geometry with its ‘Super FF’ CVD coating is for use in more general machining tasks involving grey and ductile cast irons and when milling the same materials and heavy interrupted cuts are involved, the ACK300, which is coated with Sumitomo’s ‘Super ZX’, provides a solution able to generate even greater levels of productivity.
Meanwhile, ACM200 is coated with ‘Super FF’ to provide high orders of wear resistance when machining PH stainless steels and ACM300 should be the first choice with its ‘Super ZX’ coating when highly balanced wear and fracture resistance is required on materials such as stainless steel.