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Archives January 2009

Archives

January 2009

FEATURES

Company Profile: Excel Gear Inc.

When he couldn't obtain the precision gearing he needed for high-speed applications from his suppliers, one man decided to begin designing and manufacturing them himself.

In the late eighties, while working as a design engineer for a large machine tool company, N.K. Chinnusamy—who is known familiarly as “Chinn”—began to wonder about the gears they were purchasing for high-speed applications. While he’d been assured the gears were of the highest quality, AGMA 14, there was simply too much noise and vibration […]
Gear Solutions Magazine

Tooth-Bending Effects in Plastic Spur Gears

The results of extensive modeling and testing, conducted by DSM Research BV, reveal the key differences in mechanics and wear of plastic gears.

This paper describes the investigation of a steel-plastic gear transmission, using both numerical (FE) and analytical methods. The aim was to study the influence of the stiffness of the gear material on the bending of the gear teeth and the consequences on contact path, load sharing, stresses, and kinematics. As has been shown in earlier […]
Dr. Ir. H.G.H Van Melick

Higher Contact Ratios for Quieter Gears

Gear noise can indicate flawed design or an inferior product, and it also reflects on the quality and precision of your manufacturing operation. The following analysis suggests solutions.

Low-noise behavior in standard industrial gear units is becoming an important selection criterion and a factor indicating gear quality to the customer. In several gear tests and practical researches the gear contact ratio has been reported with a large effect on noise level, especially in spur gear applications. Lower noise levels are generally associated with […]
Dr. Gonzalo Gonzalez Rey

The Principles of Workholding: Part II

The second in a multi-part series on workholding, in this installment Toolink Engineering and König-mtm discuss the pros and cons of mechanical workholding devices.

This is the second installment of a series of articles devoted to presenting and/or introducing the various designs—and principles behind the design—of workholding devices that have established a proven foothold within the gear manufacturing industry.  The intent of this particular article is to discuss mechanical workholding and identify its strengths, limitations, and areas of common […]
Tim Peterson CMfgT, Juergen Kempf

DEPARTMENTS

Terry McDonald: Site Safety

In addition to colds, the flu, and other winter-related woes, be sure to monitor your employees for "seasonal affective disorder," which is caused, in part, by shorter days and lack of exposure to the sun.

I hope each and every one of you had a safe, joyous, and meaningful holiday season and were able to enjoy it with friends and family. Now that the holidays are over we must get back to our conversations about safety in the workplace. Unfortunately, this is also the season for “seasonal affective disorder,” or […]
Terry McDonald

Proper balance is one of the critical keys in designing and manufacturing high-speed gear units

Unbalance is the most common cause of serious vibration in high-speed gear units. When present the vibration results in bearing, tooth, and seal damage. Unfortunately there is no practical way to relate the balance of the gears with the vibration. Even a perfectly machined solid disc can have an unbalanced rotation due to the non-homogeneity […]
William P. Crosher

Q&A with Ken Kiehl

Vice President of Sales & Marketing

I noticed that you’ve redesigned your Web site and changed the company name. That’s right. Since our parent company is Cincinnati Steel Treating, we were previously known as CST-Cinti, but we wanted to adopt a name that reflects our core business, which is gearing, so we chose Cincinnati Gearing Systems to make that clearer. We […]
Gear Solutions Magazine

NEWS

Excel Producing Gearbox for Navy Warship Gun System

Excel Gear, Inc., of Roscoe, Illinois, has announced its transition from the prototype to the production stage on the first order of its 36:1 ratio gearboxes, specifically designed to assist positioning of the 78-ton gun turrets utilized in the Advanced Gun System (AGS) program. BAE Systems of Minneapolis, Minnesota—the Excel customer for this project—recently approved […]
January 3, 2009

CANopen Drives from NUM

CNC vendor NUM has added a family of single- and dual-axis CANopen drives to its range. The new drives provide economic solutions for positioning requirements on machine tools, extending NUM’s high performance CNC control range in a way that helps customers to build machinery with highly optimized and cost-effective units of hardware.The new intelligent CANopen […]
January 3, 2009

Cognis Products Help Boost Wind Turbine Efficiency

Today’s wind turbines have to withstand extreme mechanical stresses under very demanding conditions, especially with the latest trend of offshore locations, where wind speeds are much greater and maintenance work is even more challenging. At this year’s Husumwind trade show Cognis Functional Products featured solutions that help wind farm operators extend the service life and […]
January 3, 2009

New Aggressive Burr-Rx Brushes from Weiler

Introducing the ultimate in high aggression, compliant deburring tools: the newly enhanced Burr-Rx™ brush. The latest addition to Weiler’s Nylox® abrasive filament product line, Burr-Rx brushes now utilize advanced filament technology, resulting in maximum aggression. The black nylon filaments are co-extruded with high aggression ceramic grains, providing cut rates up to 400 percent faster than […]
January 3, 2009

Precision Gearing with Standard Screw from Dynamic Automation

Dynamic Automation, Inc., announces the success of innovative precision gearing that works with a standard machine screw or long-length threaded rods and adapts to rotary or linear motion applications. According to design engineers at the McClellan Air Force Base this gear solved one of their toughest mechanical engineering problems where minimum space was available. This gear […]
January 3, 2009

Drill Edge-Prep Machine from Conicity

Conicity Technologies, LLC, has developed a new technology for removing grinding defects from the edges of drills. In the past drills have commonly been prepped by hand. Conicity’s DXM-50-EZ machine with CNC technology eliminates the variability and inconsistency in off-hand processing.Exceptional drill consistency requires quality regrinding and superior edge preparation. If the edge of a […]
January 3, 2009

PlastiComp Hires Industry Veteran

PlastiComp™ LLC, a leading technology company in the field of reinforced polymer composites, is pleased to announce that industry veteran Jim Clark has recently taken an active role in operations. His career includes quality control and production responsibilities in the synthetic fibers and composites industries, and he held distinguished positions at Celanese Corporation, Mobay Chemical […]
January 3, 2009

Boeing Projects China as World’s Fastest-Growing Aviation Market

The Boeing Company has detailed its 2008 Current Market Outlook (CMO) for the China region, forecasting a market for 3,710 new airplanes worth about $390 billion over the next 20 years. “China will continue to be the fastest-growing aviation center in the world, requiring 41 percent of the entire Asia-Pacific region airplane demand. This makes […]
January 3, 2009

Surplus Tooling Available from ToolingTrader.Com

The newly launched e-commerce Web site ToolingTrader.com is a one-stop source for brand new bargain priced cutting tools from top names. Drawing from the surplus stock of leading manufacturers and distributors, the site offers a wide range of tooling from categories including turning/boring, tapping, milling, drilling, and holding. Featuring user-friendly navigation, the site enables visitors […]
January 3, 2009

WestWind Breaks Ground on Innovative Aircraft Facility

WestWind Technologies, Inc., has broken ground on its new Huntsville Aircraft Modification & Integration Center at the Huntsville International Airport in Alabama. Mayor Tommy Battle of Huntsville and Mayor Paul Finley of Madison joined airport officials, Redstone Arsenal military representatives, and over 100 business leaders at the milestone event. The facility is expected to be […]
January 3, 2009

MPIF Announces Powder Injection Molding Events

The Metal Powder Industries Federation (MPIF), trade association for the international metal powder producing and consuming industries, and its affiliate APMI International announce PIM2009, an international conference on powder injection molding (PIM), to be held March 3–4, 2009 at the Royal Plaza Hotel in Lake Buena Vista, Florida, near Orlando. The conference will be immediately […]
January 3, 2009

New Super Dry III Hob from Mitsubishi

Mitsubishi Heavy Industries, Ltd. (MHI), has developed a new thin-film coating technology to be applied to the surface of precision cutting tools, which greatly extend tool life at ultra-high-speed cutting at more than 200 meters per minute (m/min) without use of cutting oil. The company has achieved commercial production of the “Super Dry III” hob, […]
January 2, 2009

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