Sumitomo Electric Hardmetal RSX Series of Wave Radius milling cutters now for general-purpose applications

Sumitomo Electric Hardmetal’s RSX Series of Wave Radius milling cutters has been extended, with RSX08000 and RSX20000 for more general-purpose applications added, complemented by two new insert grades ACP200 and ACK300. Previously Wave Radius milling cutters have proven successful when machining exotic alloys.

The extension covers the existing cutter body sizes available of shank, shell and modular-type toolholders, opening up applications where the benefits of lower levels of resistance to cutting forces help solve problems when less than ideal processing, machine set-up arrangements or workpiece design lack, for instance, a basic rigidity for effective cutting cycles.

The combination of high stability RSX cutter body design and the specialist multi-coated inserts feature ultra-low levels of resistance under cutting conditions, with the advantage of minimising the onset of vibration, due to the influence of geometry and especially a high rake angle.

ACP200 is targeted at more effective milling of stainless and die steels, while ACK300 is for cast and ductile irons. Both insert types incorporate Sumitomo’s Super ZX PVD coating. The Super ZX nano technology coating has a film hardness some 40% higher than more conventional inserts, which enables machining to be carried out at least 1.5 times more efficiently whie achieving at least a doubling cutter life.

The Wave Radius milling cutter bodies feature a Sumitomo-specific development for precise positioning and location of the insert with a highly durable thickened support behind the insert and an R-shaped pocket feature giving more efficient swarf control. A special location combines a series of formed tangs in the insert that confirms a precise and highly stable mounting position in the body, which the insert then positively locked in position against a conical clamping face.

The shank, shell and modular type holders are available in standard and fine pitch variants, with shank types now covering 20 to 32 mm diameter.Modular types are available between 20 and 40 mm external diameter and shell cutters between 40 and 160 mm.