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Archives July 2008

Archives

July 2008

FEATURES

Improvements in Dimensional Control of Heat Treated Gears

The following study involves applying low pressure vacuum carburizing technology utilizing either oil or high pressure gas quenching in order to eliminate distortion.

The goals and objectives of this investigation focused on highly distortion-prone gearing (Figure 1) to determine if dimensional improvements could be realized by applying low pressure vacuum carburizing technology utilizing either oil or high pressure gas quenching. The gears in question are traditionally atmosphere carburized and plug quenched. Test Plan Full production loads (Figure 2) […]
Daniel H. Herring, Frederick J. Otto

Heat Treatment Simulation Can Help Avoid Process Problems

The success or failure of heat treatment affects manufacturing costs, but it also determines product quality and reliability. Heat treatment must be taken into account during development and design, and it’s controlled in the manufacturing process.

Heat treatment is an indispensable step in the manufacture of steel products, as mechanical properties such as hardness, static, and dynamic strength and toughness are selectively controlled by deliberate manipulation of the chemical and metallurgical structure of a component. However, apart from the desired effects, the heat treatment process can be accompanied by unwanted effects […]
Dr. Frederic Boitout, Harald Porzner, Philippe Mourgue, Yogendra Gooroochurn, Dr. Damian Dry

A Cool Approach to Optimized Bearing Performance

In this article Timken provides you with solid advice on how to choose the right bearing for your particular application, and how the design can help avoid unwanted heat generation.

Bearings are a vital component in rotating industrial equipment, and they often represent a significant capital investment. To maintain that investment and avoid costly downtime it is important to preserve the conditions that help keep a bearing performing properly. One condition that affects bearing performance is temperature—excessive heat generation is often a leading cause in […]
Jim Madsen, John Rhodes

DEPARTMENTS

Terry McDonald: Site Safety

Reading an old company newsletter extolling the importance of conducting frequent accident-preventing inspections leads the author to wonder what we've learned about the importance of workplace safety.

I recently was going through some old paperwork I’ve accumulated over the years and found a newsletter published in May 1974 by my old employer, the Barber Colman Co. The article that interested me was titled “Constant Lookout for Unsafe Conditions Needed,” and it made a number of points that I would like to share […]
Terry McDonald

Part 1: Don’t compromise a quality gearbox by scrimping on seals and filters

You don’t want to compromise a quality gearbox by scrimping on seals and filters. Here’s the first in a two-part series, this one devoted to seals.

The gear unit designer pays careful attention to the housing, gears, bearings, and lubrication, but quite frequently the seals and filters are an afterthought. Technical writings and many standards are also very light on the subject. All too frequently they advise contacting the manufacturer as the solution, which is not altogether bad advice. Seal manufacturers […]
William P. Crosher

Q&A with Dan Herring

President, The Herring Group, Inc.

Tell us about your background that led you to become “The Heat Treat Doctor.” I graduated with a bachelor’s degree in metallurgy from the University of Illinois, and then I studied my first love, mathematics, in graduate school at the Illinois Institute of Technology. Although teaching was definitely an option, I never really considered entering […]
John Rhodes, Jim Madsen

NEWS

Ohio State Gearlab Offers Basic Gear Noise Short Course

The OSU Gearlab will be offering its Basic Gear Noise Short Course September 16-18, 2008. A feature of this course is the interspersing of demonstrations within lectures. The extensive measurement and computer software capabilities of the Gear Dynamics and Gear Noise Research Laboratory allow us to do this in a simple and non-commercial manner. On […]
July 3, 2008

See Sunnen SV-1000 Vertical CNC Honing Machine at IMTS

Sunnen’s new SV-1000 vertical CNC honing machine series is based on an innovative modular design, engineered to scale up from a single-spindle machine to a fully automated multi-spindle unit for ultra-precise bore sizing and finishing. The new machine will be demonstrated at IMTS in various configurations. Designed for part diameters of 3-65 mm (0.120-2.56"), SV-1000 […]
June 27, 2008

FABTECH International & AWS Welding Show to Make Las Vegas Debut

For the first time ever the FABTECH® International & AWS Welding Show is heading to the western United States to the world’s number-one trade show destination, Las Vegas. Taking place October 6-8 at the Las Vegas Convention Center the show is the largest event in North America dedicated to showcasing a full spectrum of metal […]
June 27, 2008

ControlPro by Konecranes Increases Uptime and Effective Planning

Konecranes, a global leader in the manufacturing of overhead lifting equipment, offers a wide range of innovative solutions for crane and hoist safety, condition, and performance control. ControlPro, by Konecranes, is a control system that is ideal for managing heavy loads safely with a high level of productivity, and it provides valuable information for effective […]
June 27, 2008

KFS 250S for Large Capacity Hob Sharpening from Koepfer

The new KFS 250S by Koepfer America provides large capacity hob sharpening with a high-speed direct drive grinding spindle, GE Fanuc CNC panel, easy-to-use software with conversational programming, and an integrated crane for easy loading and unloading of larger hobs. The machine will be displayed at IMTS ’08 at booth #6907.“The KFS 250S offers several […]
June 20, 2008

New Kapp and Niles Machines at IMTS

The Kapp Group has announced that it will display its new KX 500 FLEX Gear Center, an efficient, economic machine built on a shared modular platform, and the Niles ZE 400 Profile Grinder, an economic, compact, and user-friendly machine at the 2008 International Manufacturing Technology Show (IMTS) in Chicago. It will be the first time […]
June 20, 2008

Bourn & Koch Open House

Machine tool builder Bourn & Koch, Inc.—located in Rockford, Illinois—will host an open house Friday and Saturday, September 12-13, from 10:00 a.m. until 4:00 p.m. during IMTS. It will include demonstrations of a Blanchard 11-20AD rotary surface grinder and a B&K 100H CNC horizontal hobbing machine, a tour of the new 25,700 square-foot office and […]
June 20, 2008

SECO/WARWICK Presents Seminar

SECO/WARWICK’s Furnaces and Atmospheres for Today’s Technology Seminar will be held Sept. 8-10. Heat treating equipment configurations and processes will be explained with best practice information to provide information for purchasing, operating, and maintaining equipment. The program covers the vital furnace design and plant management options that enable attendees to evaluate equipment options for a […]
June 20, 2008

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