Kennametal announces breakthrough Spindle Connection

November 30, 2013 9:38 am

KM4X100 Spindle Connection helps deliver maximum machine tool power for maximum metal removal in titanium and hard alloys
The spindle connection is the “handshake” – the interface between the machine tool’s spindle and toolholder. As such, this vital component has to provide the torque and bending load capacity compatible with the machine-tool’s operating specifications. But when machining high-strength materials like titanium and other alloys, cutting forces generate bending moments that will exceed the interface’s limits prior to reaching the machine tool’s torque threshold. By combining high clamping force and optimised interference levels, Kennametal’s new KM4X100 provides a robust connection, extremely high stiffness, and bending load capacity for greatly improved performance in machining high-strength alloys and other materials. The result is extremely high metal removal rates and more completed parts per shift.
“In most cases, the tool-spindle connection determines how much material can be removed on a given operation,” says Doug Ewald, Director, global product management, tooling systems at Kennametal. “This is because this interface must withstand high loads and yet maintain its rigidity. With the ongoing advances in cutting tools and machining centres, a spindle connection like KM4X 100 that makes the best utilisation of available power possible is an important consideration to investigate early in production planning.”
Global priorityHigh-strength, lightweight materials such as titanium alloys, Inconel, and new aluminium alloys are eagerly sought by manufacturers in many industries, including aerospace and defence, energy, and transportation. These new materials present significant machining challenges in themselves. Add the competitive pressures in these global industries, and finding advanced manufacturing solutions becomes a top priority.
Machine-tool builders have responded with milling and turning centres that feature improved stiffness and damping on spindles and sizable machine structures and motors, all to provide the significant horsepower, torque and thrust forces required while minimising undesirable vibrations that deteriorate part quality and tool life.

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