The polygonal clamping system is one of those highly engineered devices that is surprisingly simple: a ground polygon-shaped bore rigidly clamps a cutting tool in three places.For high-speed applications, polygonal clamping is a great solution since the clamping of the tool shank is done by the elastic deformation of the holder. The main advantage of [...]
Special toolholding solutions are applied for particular customer solutions. There is one toolholder that can be applied for most of the applications—a hydraulic toolholder. A hydraulic toolholder uses a different way of clamping the cutting tool compared to systems of conventional toolholders. Introduction of force is done via a screw (with a screw, a piston [...]
With machine tool capability a given, and the proper choice of cutting tool and toolholder being made, HSM is a snap, right? Not exactly. Particular focus must be given to the assembly of tool and holder. […]
Cutting tool challenges such as the ability to avoid chatter, deflection and minimize runout are equally determined by the rigidity, concentricity and balance of the toolholder. There are numerous choices for toolholding, and no one set answer for all applications. Among these are collet style, those that use a (arbor) set-screw, hydraulic holders and of [...]
To permit for these maximum rpm applications, cutting tools have to be precise and long lasting, or more accurately, predictable, especially in unmanned operations. They also have to be capable of holding tolerance at these high speeds, and resist deflection and vibration especially in applications with longer overhangs. Balance, edge preparation, geometry and cutting tool [...]
For machining small dimensions, various HSS, brazed tools and solid carbide endmills are used. Normally up to about 8.0 mm in diameter, all tools are solid, while larger diameter endmills are more and more made with indexable inserts. Small endmills are ground on the periphery, […]
New octagonal inserts offer eight cutting edges for more economical facing, shouldering, slotting, recessing and chamfering applications. […]
The most recent and growing family of inserts are square, helical shapes for improved economy and performance. These new square insert geometries combine the helical cutting edge on all four edges with an additional wiper on one of the extremities to perform for 90′ sidewall milling operations. […]
For multifunction operations in machining small slots and shapes, various companies offer a single endmill body on which various interchangeable heads can be mounted. The versatility of the system allows shoulder milling, slot milling, small surface face milling, profiling, drilling, chamfering and ramp down operations. […]
For the machining of dies and molds, a very wide selection of cutting tools is necessary. As an example of a complicated shape requiring a large variety of cutting tools, you might observe the lower part of a mounted mold for injection molding of an electronics panel part,The mold requires facing of large and small [...]