Boring System Contains Anti-Chatter Mechanism
Kennametal’s plug-and-play boring system contains an anti-chatter mechanism.
Kennametal’s plug-and-play boring system contains an anti-chatter mechanism. The bars range from 1" to 4" (25 to 100 mm) in diameter. The bar contains a mass filled with damping fluid and supported by a pair of elastic supports. The mass vibrates at a predetermined frequency during machining, attenuating the natural frequency of the bar around it to suppress vibration. The system is said to offer performance in boring applications up to 10×D.
Features of the boring system include a serrated, bolt-on connection at the end of the bar that clamps a variety of styles and sizes of short, lightweight indexable heads. A reference flat on the top of the head is said to accommodate a visual angle finder, allowing the user to rotate the bar until the indicator reads zero, and then to clamp it into place. Machine-specific turret adapters along with a special split sleeve bushing provide maximum rigidity.
A variety of interchangeable heads includes screw-on and lever-style clamping mechanisms in positive and negative rake configurations. The heads are coolant-fed, providing a stream of high-pressure coolant to the cutting zone. The heads are said to be replaceable in the event of a crash, avoiding damage to the bar itself.
Consider these alternatives when conventional drilling can't do the job.
Simple process considerations can increase your productivity in milling titanium alloys.
To make the transition to hard turning, you'll need to switch from carbide to CBN inserts, but that is easier (and more economical) than you might think. It's making the jump to much higher surface speeds that might scare you off. It needn't. Here's why.