Machine Technology

Articles • October 1, 2016 • William Leventon

Sound Shakes Up Machining

With an assist from sound that humans can't hear, machining can be a cooler and faster process—and yield more accurate results to boot, according to the September 2016 Machine Technology column in Cutting Tool Engineering magazine.

Articles • September 1, 2016 • William Leventon

Rotary unions help deliver coolant to the cutting zone

Machine tool users wouldn't benefit from through-spindle coolant (TSC) without rotary unions, which bring together spinning and stationary components to improve coolant delivery.

Articles • August 1, 2016 • William Leventon

Short pulses offer long-term gains

You might think laser pulse lengths measured in nanoseconds—that is, billionths of a second—are short. But they're long compared to those of picosecond (a trillionth of a second) and femtosecond (a quadrillionth of a second) lasers, which are known as ultrashort-pulse lasers. Once confined mainly to laboratories and medical facilities, USPLs have become increasingly popular machining options over the last decade, thanks to lower prices and more-rugged designs intended for industrial settings.

Articles • July 1, 2016 • William Leventon

Technology Targets Crashes

As CNC machining gets more complicated, the chance of programmer and operator errors increases. These errors can cause collisions involving machine components and workpieces during the cutting process, resulting in downtime and part, tool and machine damage. Costly crashes aren't inevitable, however, thanks to technologies aimed at preventing collisions and minimizing their impact.

Articles • June 1, 2016 • William Leventon

Drilling stack materials

The aircraft industry now has the means to precisely machine multilayer material combinations. These combinations, called stack materials, include several thin layers of different materials. Aircraft skin, for example, could consist of titanium, aluminum and composite layers, according to Lee Coleman, automation division manager for Suhner Manufacturing Inc., Rome, Ga.

Articles • May 1, 2016 • William Leventon

Machine Technology: Latest in lubrication

Want a good reason for lubricating the moving parts of machine tools? Here's one from Klüber Lubrication NA LP, Londonderry, N.H., a developer of specialty lubricants: Lubrication of machine tool components minimizes wear. "When a component in a machining center wears—whether it's a spindle bearing, a ball-screw, a gear or whatever—you start to lose precision," said Steve Mazzola, Klüber's director of engineering. "And when you lose precision in a machining center, you may produce parts that are out of spec."

Articles • April 1, 2016 • William Leventon

Mother of machine tool parts

When it comes to highly accurate machining technology, jig boring is better. So say proponents of the century-old machining technique. In the early part of the last century, jig boring started as a better way to make holes. But the technology has since evolved into a more-versatile machining option.

Articles • March 1, 2016 • William Leventon

Spindle maintenance pays

Every machine tool owner can reap benefits from a good spindle maintenance program. These include reductions in costly unplanned machine downtime, longer spindle life and improved part quality. But effective spindle maintenance requires perseverance and the appropriate technology—plus a little common sense.

Articles • February 1, 2016 • William Leventon

One machine, two processes

Additive and subtractive manufacturing may be conceptual opposites, but a new partnership aims to show that the two can make a good team. Two of the partners are New York organizations: the Rochester Institute of Technology (RIT) and Elmira-based Hardinge Inc. RIT researchers are incorporating additive-manufacturing capabilities into Hardinge's Bridgeport GX 250 5-axis vertical machining center. The goal is to create a hybrid manufacturing system capable of producing more accurate parts at a lower cost than conventional manufacturing methods.

Articles • January 1, 2016 • William Leventon

A Machine Tool for Industry 4.0

Are visitors to a bearing manufacturing facility in Hoechstadt, Germany, getting an early glimpse of what Industry 4.0 looks like? That's the hope of Schaeffler Group, which owns the facility. The plant houses a machine tool meant to show how digitalization works—not in a laboratory, but in an actual manufacturing environment.

Articles • December 1, 2015 • William Leventon

The virtual machine tool

The benefits of creating and using a virtual machine tool. At trade shows and elsewhere, people on the cutting edge of manufacturing are touting the benefits of digitalizing the machine tool environment, where technologies are employed that make use of digital data. It's at the heart of the much-discussed drive toward Industry 4.0.

Articles • October 1, 2015 • Markus Stolmar

Overcoming material challenges

Companies that make cylindrical cutting tools from PCD and other materials face two key challenges: meeting the surging demand for PCD tools while retaining the ability to produce HSS, carbide, ceramic and cermet tools, observes the Machine Technology column in the October issue of Cutting Tool Engineering magazine.