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Coatings

FEATURE ARTICLES | 2024-06-12

Preventing Corrosion in Gears

Gear Technology recently had the opportunity to sit down with Thomas White, Marketing Manager for Northern Technologies International Corporation, whose ZERUST line of corrosion prevention solutions includes specialized packaging, testing and comprehensive corrosion management services.

FEATURE ARTICLES | 2024-06-12

Nanocomposite Coatings

Thanks to advancements in material science and chemistry, particularly in nanoscience, a new solution has emerged: nanocomposite coatings, more broadly referred to as thin-film coatings. But how did we arrive at this point in coating development? As with many technologies, war highlighted the need for more advanced coating development eventually leading to nanocomposite coatings.

INDUSTRY NEWS | 2023-01-26

The EMAG Group and HPL Technologies Arrive at Extensive Cooperation Agreement

EMAG and HPL Technologies agree on extensive cooperation in the field of hard coating of brake discs. Hard-coated brake discs are the preferred solution for compliance with the "EURO 7" fine particulate matter limits.

EVENT | 2023-01-18

Nextlub 2023

Lubricants and tribological systems are undergoing rapid change. The challenges and uncertainties are enormous. Ecological challenges such as the de-carbonization of industry, mobility and society on the one hand, economic challenges such as the resilience of global supply chains on the other, are changing the way lubricants and tribological systems will be developed, validated, produced and applied in the future.

EVENT | 2023-01-11

CIMT 2023

Since founding in 1989, the China International Machine Tool Show (CIMT) held in every odd year has been successfully held 17 sessions so far. CIMT is the most prestigious, largest scale and most influential professional machine tool exhibition in China, regarded by the global machine tool industry as with the same popularity of EMO in Europe, IMTS in the United States, and JIMTOF in Japan. 

INDUSTRY NEWS | 2022-10-10

Kyzen to Exhibit Metalnox Alkaline Cleaners with Corrosion Inhibitors at FABTECH 2022

Kyzen, the global leader in innovative environmentally friendly cleaning chemistries, will exhibit at FABTECH 2022, scheduled to take place November 8–10 at the Georgia World Congress Center in Atlanta. The Kyzen Clean team will highlight Metalnox M6314CP and Metalnox M6324CP in Booth #B5017.

GEAR TALK WITH CHUCK | 2019-04-04

Gear Technology Hall of Fame?

Cleveland has always seemed a rather odd location for the Rock and Roll Hall of Fame. Hollywood, on the other hand, is the logical place for that W...
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GEAR TALK WITH CHUCK | 2019-04-02

Don't Let Them Fade Away!

It occurred to me that some readers may be unfamiliar with Darle W. Dudley, author of many respected gear reference books. A quick on-line “name ch...
GEAR TALK WITH CHUCK | 2018-12-11

Handling Changes

It is the solemn du...
GEAR TALK WITH CHUCK | 2018-10-25

Changing Bearings

Just as “conventional thinking” h...
INDUSTRY NEWS | 2018-08-15

IMTS 2018: A Field Guide

Chicago Preps for the Next Manufacturing Technology Extravaganza Matthew Jaster, Senior Editor
INDUSTRY NEWS | 2018-06-07

Tectorius Expands Lubricant and Coatings Portfolio

Maelstrom Chemical/Tectorius has expanded its portfolio of synthetic lubricants and coatings. The Tec-Flon family of products now contain...
FEATURE ARTICLES | 2018-05-01

More Solutions, Greater Challenges

As coating technology improves to handle harsher conditions, cutting tool manufacturers are faced with new challenges during the resharpening process.
FEATURE ARTICLES | 2017-08-01

2017 Gear Expo: Gears, Machinery and a Whole Lot More

There is so much more to Gear Expo than gears or the machinery that makes them. That's because it takes much, much more to make a finished gear than even the most sophisticated machine. And it is exhibitors who are part of the "much, much, more" that are addressed in this article.
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GEAR TALK WITH CHUCK | 2017-03-07

Change for the Sake of Change?

One of the great things about social media is the opportunity to keep up with what is going on with family and friends. Sometimes you can offer an ...
PRODUCT NEWS | 2016-09-01

Product News

News on the latest products in the industry.
GEAR TALK WITH CHUCK | 2014-05-13

A Sure Sign of Spring

[starbox] Over the years, some of the luster has come off the Indianapolis 500, but it remains a major cultural influence. I caught the racing b...
GEAR TALK WITH CHUCK | 2014-01-17

Gear Training Then and Now

[starbox] Blogging about gear training brings to mind the widely attended Illinois Tool Works Gear School that Bob Moderow operated on behalf of h...
FEATURE ARTICLES | 2013-05-01

Heavy-Duty Demands - Modern Coating Technology Examined

The hob is a perfect example of how a little manufacturing ingenuity can make a reliable, highly productive cutting tool. It's an engineering specimen that creates higher cutting speeds, better wear resistance and increases rigidity. The cutting tool alone, however, can't take all the credit for its resourcefulness. Advanced coating technology from companies like Sulzer, Oerlikon Balzers, Ionbond, Seco Tools and Cemecon helps improve cutting tools by reducing overall costs, increasing tool life and maintaining the highest levels of productivity. The following is a quick recap of new technologies and the latest information in the coating market.
TECHNICAL ARTICLES | 2009-03-01

Hob Tool Life Technology Update

The method of cutting teeth on a cylindrical gear by the hobbing process has been in existence since the late 1800s. Advances have been made over the years in both the machines and the cutting tools used in the process. This paper will examine hob tool life and the many variables that affect it. The paper will cover the state-of-the-art cutting tool materials and coatings, hob tool design characteristics, process speeds and feeds, hob shifting strategies, wear characteristics, etc. The paper will also discuss the use of a common denominator method for evaluating hob tool life in terms of meters (or inches) per hob tooth as an alternative to tool life expressed in parts per sharpening.
INDUSTRY NEWS | 2007-08-14

Morgan Advanced Ceramics Introduces New Coatings from the Racing Industry

The Diamonex Products division of Morgan Advanced Ceramics (MAC) introduced its Diamonex® Diamond-like Coatings (DLC) for the pe...
TECHNICAL ARTICLES | 2006-07-01

The Lubrication of DLC Coated Gears with Environmentally Adapted Ester-Based Oil

A main limiting factor in extending the use of hard coatings to machine component application is the lack of knowledge about how these inert coatings perform under lubricated conditions using today's lubricants.
INDUSTRY NEWS | 2006-03-20

Balzers Acquires Gold Star Coatings

Balzers Inc. announced a cooperaion agreement to take over the PVD coating operations of Gold Star Coatings, a subsidiary of the industri...
INDUSTRY NEWS | 2005-04-13

New North American Subsidiary for Atlanta GmbH

Atlanta GmbH in Bietingheim-Bissingen, Germany, announced the formation of its new North American subsidiary, Atlanta Drive Systems Inc.,...
TECHNICAL ARTICLES | 2004-07-01

Influence of Coatings and Surface Improvements on the Lifetime of Gears

Surface coatings or finishing processes are the future technologies for improving the load carrying capacity of case hardened gears. With the help of basic tests, the influence of different coatings and finishing processes on efficiency and resistance to wear, scuffing, micropitting, and macropitting is examined.
INDUSTRY NEWS | 2004-01-04

New Managers at M&M Precision

Mark Cowan and John Zahora joined M&M Precision Systems Corp. of Willoughby, OH, in different management positions. According to the ...
FEATURE ARTICLES | 2004-01-01

Service Behavior of PVD-Coated Gearing Lubricated with Biodegradable Synthetic Ester Oils

The following article is concerned with the analysis of the wear-reducing effect of PVD-coatings in gearings. Standardized test methods are used, which under near-real conditions enable statements to be made about the different forms of damage and wear (micropitting, macropitting, scuffing).
TECHNICAL ARTICLES | 1999-11-01

Hard Gear Finishing with a Geometrically Defined Cutting Edge

The market demand for gear manufacturers to transmit higher torques via smaller-sized gear units inevitably leads to the use of case-hardened gears with high manufacturing and surface quality. In order to generate high part quality, there is an increasing trend towards the elimination of the process-induced distortion that occurs during heat treatment by means of subsequent hard finishing.
FEATURE ARTICLES | 1997-01-01

Hard Coatings on Contaminated Surfaces - A Case Study

Physical Vapor Deposited (PVD) coatings such as TiN (Titanium nitride) have been a boon for cutting tool manufacturers. They reduce wear and, therefore, extend tool life, which in turn reduces production costs. But PVD coatings are expensive, and when they fail, they cost both time and money, and they causes of the failure are not always readily apparent.
TECHNICAL ARTICLES | 1997-01-01

Improved Ion Bond Recoating for the Gear Manufacturing Industry

This article summarizes the development of an improved titanium nitride (TiN) recoating process, which has, when compared to conventional recoat methods, demonstrated tool life increases of up to three times in performance testing of hobs and shaper cutters. This new coating process, called Super TiN, surpasses the performance of standard TiN recoating for machining gear components. Super TiN incorporates stripping, surface preparation, smooth coating techniques and polishing before and after recoating. The combination of these improvements to the recoating process is the key to its performance.
TECHNICAL ARTICLES | 1997-01-01

Composite Electroless Nickel Coatings for the Gear Industry

Electroless Nickel (EN) plating, a process dating back to the 1940s, is one of the predominant metal finishing methods today. It is especially suitable for the gear industry, whose end uses span innumerable other industries, providing an endless assortment of requirements, environments, materials and specifications. EN plating has a broad array of functional features, which include:
FEATURE ARTICLES | 1997-01-01

Coated Gears Provide Slick Solution for Human-Powered Boat

Design Problem: Develop a gear drive for a pedal-powered water craft that will be easy to manufacture, use and maintain; that will be lightweight enough for the boat to be portable; and that will eliminate the environmental risk of lubricants leaking into the water.
TECHNICAL ARTICLES | 1996-03-01

Wear Protection for Gears

Several trends in mechanical engineering are leading to greater surface stress on components and thus to unacceptable wear. These trends include greater stresses due to increased power densities; the need to maintain high precision of components throughout their service life; and the environmental imperative to reduce use of lubricants and additives.
TECHNICAL ARTICLES | 1994-11-01

New Innovations in Hobbing - Part II

The first part of this article, which ran in the September/October 1994 issue, explained the fundamentals of gear hobbing and some of the latest techniques, including methods of hob performance analysis and new tool configurations, being used to solve specific application problems. In this issue, the author continues his exploration of hobbing by describing the effects of progress on requirements in accuracy, as well as the latest in materials, coating and dry hobbing.
TECHNICAL ARTICLES | 1994-09-01

New Innovations in Hobbing - Part I

Prior to the introduction of titanium nitride to the cutting tool industry in the early 1980s, there was very little progress in the general application of hobbing in the gear cutting industry. The productivity gains realized with this new type of coating initiated a very active time of advancement in the gear manufacturing process.
TECHNICAL ARTICLES | 1993-01-01

High Technology Hobs

Today's high technology hobs are visible different from their predecessors. Gear hobs have taken on a different appearance and function with present day technology and tool and material development. This article shows the newer products being offered today and the reasons for investigating their potential for use in today's modern gear hobbers, where cost reduction and higher productivity are wanted.
TECHNICAL ARTICLES | 1990-07-01

Efficient Methods for the Synthesis of Compound Planetary Differential Gear Trains for Multiple Speed Ratio Generation

This article presents an efficient and direct method for the synthesis of compound planetary differential gear trains for the generation of specified multiple speed ratios. It is a train-value method that utilizes the train values of the integrated train components of the systems to form design equations which are solved for the tooth numbers of the gears, the number of mating gear sets and the number of external contacts in the system. Application examples, including vehicle differential transmission units, rear-end differentials with unit and fractional speed ratios, multi-input functions generators and robot wrist joints are given.
TECHNICAL ARTICLES | 1984-05-01

Advantages of Titanium Nitride Coated Gear Tools

A brief introduction to the subject of Thin Film Coatings and their application to gear hobs and shaper cutters is followed by a detailed description of the Chemical Vapor Deposition Process and the Physical Vapor Deposition Process. Advantages and disadvantages of each of these processes is discussed. Emphasis is placed upon: application engineering of coated gear tools based on laboratory and field test results. Recommendations are suggested for tool design improvements and optimization of gear cutting operations using coated tools. Productivity improvements potentially available by properly utilizing coated tools are considered in terms of both tool cost and machining cost.
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