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Machining

Cracking the code

12/01/2016
Author:
James Harvey
Presented here is the second part of a two-part series of columns about the importance of becoming familiar with CNC programming code. The following describes the steps involved in manually writing a program.
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Maximizing with multispindles

12/01/2016
Author:
Kip Hanson
Before CNC lathes, most high-volume turned parts were made on multispindle, cam-driven screw machines. Setup times were long, and great skill was needed to design the cams and grind the cutting tools. However, by being able to perform a dozen or more operations simultaneously, they could produce hundreds—often thousands—of parts per hour. Whatever happened to those old mechanical monsters? According to Giovanni Principe, they’re alive and well.
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Achieving machining effectiveness

12/01/2016
Author:
Stas Mylek
In the first part of this two-part series, I looked at what actually happens in the cutting zone and how that knowledge allows end users to select the best possible cutting tool and CAD/CAM strategy for a particular material to optimize material removal. This second part covers why it is important to adopt this approach not only for all CNC machining processes, but as a significant production cost-saving measure companywide and industrywide.
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NIST: Fortify Manufacturing, Save $100 Billion, by Closing Tech Gaps

To spur significant innovation and growth in advanced manufacturing, as well as save over $100 billion annually, U.S. industry must rectify currently unmet needs for measurement science and "proof-of-concept" demonstrations of emerging technologies. This is the overall conclusion reached by economic studies funded by the National Institute of Standards and Technology (NIST) of four advanced manufacturing areas used to create everything from automobile composites to zero-noise headsets.

A Turn to the Exotic

10/01/2016
END USER: Toolcraft Inc., (360) 794-5512, www.tcprecision.com. SOLUTION PROVIDER: Mil-Tec Inc., (800) 564-5832, www.miltecusa.com. CHALLENGE: Reduce cycle time when machining an aluminum part. SOLUTION: A progressive form tool applied on a horizontal machining center.
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Sound Shakes Up Machining

10/01/2016
Author:
William Leventon
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.
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Iscar video depicts chip forming

The cutting edges of cutting tools don’t actually produce chips. Instead, the pressure of a rapidly spinning tool on a workpiece plasticizes part of the parent material, creating a shearing effect that forces the material to ride up the tool. The flute and tool geometries form the chip and force it away from the tool body until it breaks off and evacuates.

Iscar Metals Inc. produced this video depicting this process. 

Nikkei: DMG Mori head bearish on global capital investment

"Global capital investment, a main engine of economic growth, remains stagnant amid concerns over a slowdown in emerging markets and the U.K.'s vote to leave the European Union, writes Mikio Sugeno in Nikkei Asian Review. "Masahiko Mori, president of major Japanese machine-tool manufacturer DMG Mori, painted a downbeat picture of global business investment in an interview with The Nikkei, saying that a full-scale recovery is still two to three years away." Mori explains his reasoning in this Q&A with Sugeno.