Even in high-pitch conditions, the same surface finish can be obtained compared to solid carbide ball type end mills, making the Maxi-Rush 5-axis profile heads capable of high-productivity machining.

TungCut CBN-tipped STH inserts provide the solution to these challenges with a completely new turning concept. In the shape of TungCut grooving insert, the new STH inserts perform finish-turning by feeding the insert sideways on the worked surface. Its CBN cutting edge features a unique wiper geometry: the frontal edge features an arc wiper of large radius. This generates superior surface finish in straight-line turning applications, while also allowing increased feed rates of up to 1.5 mm (.060″) per revolution with up to 0.1 mm (.004″) d.o.c. The wiper on the side edges is also designed to provide improved surface quality during finish-facing operations. In addition, Tungaloy’s unique WavyJoint technology creates a strong joint of the CBN tip and carbide insert base at larger contact areas. This not only enhances the brazing strength between the two parts but also promotes the dissipation of cutting heat built up during aggressive high feed machining, thus preventing the CBN tip from debrazing and insert failure.

Machining grooves and shallow channels. Example: grooving ball-bearing raceways. Typically performed by tools that are capable of light cuts at high feed rates. Imparts high-quality finish.

STH inserts are interchangeable with other TungCut grooving inserts and can be used with the existing toolholders with a seat size of 3 or 5. Facing and I.D. turning is also possible with select toolholders.

Maxi-Rush is available in a variety of head types and shank holder lengths – such as flat, ball, corner radius, chamfer, and slot, to mention a few – to provide the greatest versatility in tooling solutions.

Tungaloy has announced the introduction of two brand new TungCut CBN-tipped inserts: STH300-SR BXA10 and STH500-SR BXA10 for efficient finish turning of hardened steel parts.

CBN inserts used for the finish O.D. turning process of hardened steel parts are generally offered in standard ISO shapes. Since 2.4 mm (.094″) nose radius is the largest available of these standard inserts, shops must use a significantly reduced feed rate to achieve a high-quality surface finish, which limits cycle time improvement. Likewise, when machining the shaft surface located in between two close shoulders of larger diameters using standard ISO CBN inserts, shops customarily use two different turning tools just to avoid interferences with the workpiece shoulders.

For more information about the MAXI-RUSH line or other TaeguTec metalworking solutions, visit www.taegutec.com

Along with its exceptional accuracy and optimum grades, the line’s quick and simple head replacement makes it a perfect solution for today’s machining needs and a superior performer that boosts productivity on a range of applications.

Workpiece is held in a chuck, mounted on a face plate or secured between centers and rotated while a cutting tool, normally a single-point tool, is fed into it along its periphery or across its end or face. Takes the form of straight turning (cutting along the periphery of the workpiece); taper turning (creating a taper); step turning (turning different-size diameters on the same work); chamfering (beveling an edge or shoulder); facing (cutting on an end); turning threads (usually external but can be internal); roughing (high-volume metal removal); and finishing (final light cuts). Performed on lathes, turning centers, chucking machines, automatic screw machines and similar machines.

With its innovative head-indexable feature and overall outstanding advantages, the Sfeed-Tec Maxi-Rush end mill replaces most of the existing conventional solid carbide end mills in its class.

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A range of shapes and lengths are available, including straight shanks with necks and tapered necks made of different materials. These are available in steel, carbide, and tungsten and are internal through coolant capable.

Metal-removing edge on the face of a cutter that travels in a plane perpendicular to the axis. It is the edge that sweeps the machined surface. The flat should be as wide as the feed per revolution of the cutter. This allows any given insert to wipe the entire workpiece surface and impart a fine surface finish at a high feed rate.

Crystal manufactured from boron nitride under high pressure and temperature. Used to cut hard-to-machine ferrous and nickel-base materials up to 70 HRC. Second hardest material after diamond. See superabrasive tools.

Recently, TaeguTec added the TT5513 grade to the technologically advanced Maxi-Rush line. The ingenious grade has an ultra-fine substrate with optimum toughness features and excellent abrasion resistance. It has a nano-crystalline structured AlTiN layer, an anti-abrasion and cracking-resistant PVD-coated layer and is ideal for mould steels and pre-hardened steels.

Its rigid and precise double contact fastening system houses a flat contact surface area for precise axial runout accuracy, has a conical taper contact for self-centring and precise radial runout accuracy, and is highlighted by its quick and rigid unique threading.

The Maxi-Rush 5-axis profile heads are designed for high-pitch, semi-finishing and finishing profiling parts used in the aerospace, power generation, medical and mould and die industries.

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TaeguTec has added oval and lens-shaped solid carbide heads that are 3D profiling capable in order to solve industry-wide disadvantages, such as excessive machining time and poor surface finish, that plague profiling operations.

The expanded features include a wider cutting edge contact area for improved machining stability and longer tool life, and are ideal for machining difficult-to-cut materials such as titanium alloys, Inconel, and stainless steel.

Machine shops of all sizes have taken a special interest in the metalworking giant’s highly rigid Maxi-Rush line because of its excellent machining precision, simple indexable head replacement and shorter setup time. The line now includes a wider variety of tools that are capable of handling a broad range of operations.