January/February 2020

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Feature Articles

Improving Cost Efficiency in Heat Treatment
The future gives the gear market plenty to think about in areas like automation, additive manufacturing and machine learning.

Spraying to All Fields: Catching Up on Some Lubrication Trends and Issues
Lubrication - as it pertains to the gear industry - is a rather large universe, much, much more than the old double-entendre, "the squeaky wheel gets the grease."

The Latest in Broaching
From standardization to automated, Industry 4.0 capable broachers, here's the latest in what's being developed in the field of broaching.

2020 State of the Gear Industry
Reader Survey Results. Gear Technology's annual State-of-the-Gear-Industry survey polls gear manufacturers about the latest trends and opinions relating to the overall health of the gear industry. As in years past, the survey was conducted anonymously, with invitations sent by e-mail to gear industry companies – primarily in North America, but also including some respondents from around the world.

Training - A Top Priority for Investment
In this edition of Arvin's Angle, Joe explains why training isn't an expense. It's an investment.

Bevel Gear Generators Get Better with Age
An economical modernization program gives Designatronics' tried-and-true Gleason No. 102 Coniflex generators a new lease on life for fast, reliable production of smaller precision straight bevel gears.

Technical Articles

CNC Manufacturing of Circular Faced Cylindrical Gears
Spur cylindrical gears are usually cut using a hob and therefore present an essentially straight face to which crowning can be added to prevent edge contact. Rather than using a rack or hob, it is possible to cut cylindrical gears with a face mill cutter. In the following presentation, these gears are termed "spurved," i.e. — a contraction of "spur" and "curved."

Optimum Carburized and Hardened Case Depth
The optimum carburized and hardened case depth for each gear failure mode is different and must be defined at different locations on the gear tooth. Current gear rating standards do not fully explain the different failure modes and do not clearly define the different locations that must be considered.

Grinding Wheel Wear, Dressing, Tip Advance and Work Phase Angle Adjustment after Corrections
Are there rules to aid in grinding process optimization?

Departments

The Tradition Continues (Publishers Page)
You may have noticed a few changes around here. Most notably, the face on this page isn't the one you're used to seeing here. As you've probably heard by now, Michael Goldstein, founder and Publisher since 1984, has stepped back from his day-to-day duties and transferred the operation of Gear Technology, Power Transmission Engineering and Gear Technology India to the American Gear Manufacturers Association.

To Be Continued...Without Question (Voices)
Welcome to a new era of Gear Technology magazine! AGMA is proud to add Gear Technology, Gear Technology India, Power Transmission Engineering, the Michael Goldstein Gear Technology Library and supporting websites and circulation under its umbrella.

Letters to the Editor (Voices)
Last issue's farewell editorial by our founder and original publisher, Michael Goldstein, sparked a lot of feedback and comments from our readers. Here's a sampling of what your fellow subscribers had to say.

Product News (Product News)
Integrated Production Chains from Kapp Niles, an alternative to press quenching from Seco/Warwick, an expansion of the Profilator line and more.

Vickers vs. Knoop Hardness Testers for Measuring Case Depth in Carburized Parts (Ask the Expert)
What are the pros and cons of using Vickers versus Knoop hardness testers for measuring case depth in carburized gears?

Calendar (Events)
The complete technical calendar from the January/February 2020 issue of Gear Technology.

Industry News (Industry News)
Kapp Niles celebrates young inventors, Solar Atmospheres expands, Klingelnberg increases training programs, Liebherr celebrates 50 years in the USA, Timken Expands Southeast regional repair facility and more news for the gear industry.

The Race to the Biggest Ferris Wheel (Addendum)
Architecture has always had a degree of global one-upmanship to it, but most of the time, you see it happening in the form of skyscrapers.