TACU ER Units and Solid ER Collets

September 18, 2019
TACU ER Units and Solid ER Collets

Kennametal announced an expansion of the turret-adapted clamping units (TACU): ER-ready driven units in conjunction with a line of solid ER collets that are threaded to accept screw-on milling cutters.

“Together the new TACU ER units and the solid ER collets are a great marriage of technology. Available in sizes ER25 through ER40 with thread sizes ranging from M08 through M16, this innovation provides machining center-like capabilities to your live tool lathe. These new products provide the flexibility to use standard ER collets with solid endmills or the new solid ER collets together with screw-on indexable milling cutters,” said Ronald West, manager, tooling systems.

Sealed for through-the-tool coolant and there is a 1 mm standoff for additional clearance on larger endmills with a precision-ground locating boss for minimal runout. It’s a compact design, reducing the chance of interference on smaller machines. Compared to a standard spring-style ER collet, they’re very rigid, so you can take heavier cuts.

The TACU offering can be used on seven leading brands of CNC lathes, both VDI and bolt-mounted turrets (BMT) with a variety of static and driven blocks. TACU’s are equipped for internal and external coolant, with up to 12,000 RPM possible on specified driven tools. “This addition greatly increases the capabilities of our TACU offering,” West said.

Related Glossary Terms

  • clearance

    clearance

    Space provided behind a tool’s land or relief to prevent rubbing and subsequent premature deterioration of the tool. See land; relief.

  • collet

    collet

    Flexible-sided device that secures a tool or workpiece. Similar in function to a chuck, but can accommodate only a narrow size range. Typically provides greater gripping force and precision than a chuck. See chuck.

  • computer numerical control ( CNC)

    computer numerical control ( CNC)

    Microprocessor-based controller dedicated to a machine tool that permits the creation or modification of parts. Programmed numerical control activates the machine’s servos and spindle drives and controls the various machining operations. See DNC, direct numerical control; NC, numerical control.

  • coolant

    coolant

    Fluid that reduces temperature buildup at the tool/workpiece interface during machining. Normally takes the form of a liquid such as soluble or chemical mixtures (semisynthetic, synthetic) but can be pressurized air or other gas. Because of water’s ability to absorb great quantities of heat, it is widely used as a coolant and vehicle for various cutting compounds, with the water-to-compound ratio varying with the machining task. See cutting fluid; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.

  • gang cutting ( milling)

    gang cutting ( milling)

    Machining with several cutters mounted on a single arbor, generally for simultaneous cutting.

  • lathe

    lathe

    Turning machine capable of sawing, milling, grinding, gear-cutting, drilling, reaming, boring, threading, facing, chamfering, grooving, knurling, spinning, parting, necking, taper-cutting, and cam- and eccentric-cutting, as well as step- and straight-turning. Comes in a variety of forms, ranging from manual to semiautomatic to fully automatic, with major types being engine lathes, turning and contouring lathes, turret lathes and numerical-control lathes. The engine lathe consists of a headstock and spindle, tailstock, bed, carriage (complete with apron) and cross slides. Features include gear- (speed) and feed-selector levers, toolpost, compound rest, lead screw and reversing lead screw, threading dial and rapid-traverse lever. Special lathe types include through-the-spindle, camshaft and crankshaft, brake drum and rotor, spinning and gun-barrel machines. Toolroom and bench lathes are used for precision work; the former for tool-and-die work and similar tasks, the latter for small workpieces (instruments, watches), normally without a power feed. Models are typically designated according to their “swing,” or the largest-diameter workpiece that can be rotated; bed length, or the distance between centers; and horsepower generated. See turning machine.

  • milling

    milling

    Machining operation in which metal or other material is removed by applying power to a rotating cutter. In vertical milling, the cutting tool is mounted vertically on the spindle. In horizontal milling, the cutting tool is mounted horizontally, either directly on the spindle or on an arbor. Horizontal milling is further broken down into conventional milling, where the cutter rotates opposite the direction of feed, or “up” into the workpiece; and climb milling, where the cutter rotates in the direction of feed, or “down” into the workpiece. Milling operations include plane or surface milling, endmilling, facemilling, angle milling, form milling and profiling.

Additional Products from Kennametal Inc.

Designed for extended tool life and smooth drilling at high metal removal rates, Drill Fix PRO has outboard inserts that feature a wiper geometry for smoother surface finishes and larger coolant channels for high-volume flow. Other platform advancements include the versatility of the four-time Read More

The product expansion includes best-in-class features and advanced technology for metal cutting applications. The launch includes eight products that expand on and support existing platforms in delivering superior performance across multiple applications as well as address common machining Read More

The Blast Ninja reduces air exit velocity while maintaining particle velocity, resulting in a significant reduction in noise production at the source while maintaining blasting production. This proven technology remains Kennametal-manufactured and is now available directly through authorized Read More

Using the 140-degree solid carbide point design from Kennametal’s GOdrill, the KenTIP FS GTP insert allows for multiple machining applications across a range of materials including steel, stainless steel and cast iron. KenTIP FS GTP also features excellent centering capabilities, even at moderate Read More

KYHK15B provides excellent edge stability, high chipping resistance, and a PVD gold coating makes wear progression identification very easy. From smooth and varying depths of cut to heavy depths of cut, KYHK15B can be an economic alternative to PcBN inserts.

All Beyond Evolution insert styles feature the Triple-V Seating: Tight grip on the back (1) and top & bottom (2) provides maximum stability, especially when operating multidirectional turning and profiling.

KCK20B and KCKP10 are suitable for wet or dry cuts. These include rotor hubs used in windmills, pump housings, steering knuckles and gear housings for heavy equipment, and automotive components like crankshafts and cylinder heads. While KCK20B delivers higher productivity in roughing and semi- Read More

Machining three diameters in one operation, the stator bore tool ensures the alignment and concentricity of the machined surfaces whilst reducing the cycle time significantly. The lightweight 3D printed combination tool enables a faster tool change and spin-up even on less powerful machines. The Read More

The tangential design of the FIX8 insert features a rigid clamping system that pulls the insert securely into the pocket seat, offering superior stability that enables the insert to withstand large cutting forces and vibrations for optimal performance. The insert is also supported by a replaceable Read More

Drawing on its deep materials science expertise, Kennametal developed KAR85-AM-K to provide corrosion and wear resistant properties analogous to its conventional counterpart grade, CN13S. Combined with Kennametal’s binder jet additive manufacturing capabilities, KAR85-AM-K results in fully Read More