Sumitomo WGX Wavemill series face mills reduce cutting forces
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Sumitomo Electric Hardmetal is introducing WGX Wavemill series suitable for more general milling applications. The products include three 45º shell milling cutter bodies with different insert pitches and a set pitch, and a shank-type body plus two chipbreaker-style inserts for machining steel and cast iron.
The 45º Wavemill WGX cutter body and insert combination is designed to meet lower cutting force and power requirements. The insert's wiper edge improves the quality of surface finish obtained and, aided by the precision tool assembly, minimises any run-out error. Its optimised chamfer design also reduces the likelihood of insert edge chipping and the creation of burrs, says Sumitomo.
RS shell-type cutter bodies are available between 40 and 250 mm diameter in WGX standard pitch. These have between three and 10 teeth. The medium pitch WGXM has between four and 14 teeth and the fine pitch WGXF between five and 24 teeth. Through-tool coolant feed is available on all cutter bodies of 125 mm diameter and over.
The shank-type EW endmill cutter body is available in four diameters between 32 and 63 mm with between three and five teeth.
There are two optimised-shape wiper-edge inserts, supplied as a general purpose series L, G and H-types which have the advantage of optimised nose radii for higher strength, while a low burr design version, designated FG, incorporates a special chamfer form. These inserts have a large rake angle that ensures a sharp cutting edge.
Each of the inserts is available in an application-led choice of nanometer-thick multi-layer PVD coatings. APC 200 is a Sumitomo Super ZX grade of TiAlN and ALCrN based on a fine grain substrate giving high fracture and wear resistance on steels and stainless steels. ACK 200 Super FF grade is a TiAIN and AICrN coating described as ideal for general and interrupted machining of grey and ductile cast irons.
Meanwhile, latest ACM grades for stainless steel and exotic materials include ACM 200 and ACM 300. ACM 200 is CVD coated and suitable for dry cutting conditions and ACM 300 is PVD coated and targeted at wet machining applications.
ACM 200 has good wear characteristics and heat resistance and is suitable for Martensitic stainless steel and the milling of hardened materials. ACM 300 is a very stable grade for milling Austenitic stainless steels providing an optimised balance of wear and fracture resistance.
