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Gear Technology

November/December 2023

Volume: 40

Edition: 8

Read the complete issue (.pdf)

Streaming Now to a Device Near You

December 11, 2023

Gear Technology TV is the home for original gear-related content created by our editors in conjunction with a lot of really smart people in our industry whom we’ve had the pleasure to interview on camera or include in one of our discussion panels. For years, we’ve been building our library of video content, and we’ve just added a bunch more.

Polish Grinding of Gears

Surface quality and efficiency go hand in hand

December 11, 2023

This article introduces the process of polish grinding of gears. Improved surface quality increases the overall efficiency of gearboxes, resulting in reduced friction and torque loss, higher power density, and noise-optimized gears (lower NVH); all these factors are highly relevant, especially for electric drives. When Reishauer developed polish grinding in 2012, the process aimed to improve the efficiency of ICE engine transmissions, and the set goals were easy to achieve. Today, in 2023, the situation is dramatically different. While an ICE engine operates at around 3,000 rpm and supplies acoustic masking of the gear noise, EV drivetrains feature up to 20,000 rpm and offer no such masking.

The Evolution of Gear Dynamics and Gear Noise

Raj Singh reflects on the short courses and gear research at Ohio State University

December 11, 2023

A deep dive into the world of gear dynamics and gear noise has led many a mechanical engineer to Columbus, OH in search of the methods by which gear noise is measured and predicted as well as the techniques employed in gear noise and vibration reduction. Over the past 40+ years, about 2,550 engineers and technicians from 385+ companies have attended the Gear Dynamics and Gear Noise Short Course at The Ohio State University.

Getting into Gear

An interview with four women from the gear industry

December 11, 2023

National STEM Day, celebrated on November 8th this year, provided a platform for Gear Technology to engage in a conversation with four remarkable women shaping the manufacturing industry: Ruthie Johnston, CEO and Owner of Croix Gear; Robin Olson, Senior Manager, Applications Engineering—Engineered Gear, Regal Rexnord; Michelle Maddox, Sales and Business Development Manager, B&R Machine and Gear Corp.; and Claudia Hambleton, Office Manager and Corporate Treasurer, German Machine Tools of America (GMTA). Each of these women, driven by a shared passion for fostering the next generation of female leaders, revealed their unique journeys and perspectives in this male-dominated field.

Gleason

The “Differential Difference” in E-Drives

Forged differential gears don’t deliver the stronger, quieter performance required by e-drives—for that, there’s Coniflex Pro

December 11, 2023

Dr. Hermann J. Stadtfeld and Dipl.-I... Uwe Gaiser

Gleason's Coniflex^®Pro Design and Manufacturing System for producing stronger, quieter, and more reliable e-drive differential gears in high volumes, for automotive, truck, bus and off-highway transmissions. It‘s the differential difference!

Workforce Development in 2023

MPT Expo “Ask the Expert” stage examines trends, topics, and future considerations

December 11, 2023

At the Motion + Power Technology Expo in Detroit, I had the privilege to sit and discuss workforce development challenges with Kris Ward, senior director, strategy, and business development at SME, Kika Young, president, Forest City Gear, Mary Ellen Doran, director, emerging technology and executive director for the AGMA Foundation and Megan Schrauben, executive director, MiSTEM Network. The following is an edited transcript of this panel discussion. (Special thanks to Forest City Gear for sponsoring this live event.)

Finding the Right Task for Optical Gear Metrology

December 11, 2023

Markus Finkeldey and Dr. Christof Gorgels

Tactile or contact probes are the most common metrology technique in the coordinate measurement world, including the more specialized gear measurement community. Tactile probes can be active or passive, scanning or touch only, and may vary in cost and performance depending on the system itself. They are offered by multiple industrial companies as standalone OEM products (e.g., Renishaw) or only included in their coordinate measuring machines (e.g., Zeiss, Klingelnberg, and Hexagon). Their overall performance, especially their robustness and flexibility, have led to a gold standard for most metrology tasks.

Investigation of the Manufacturability of Topological Modifications Using Adapted Kinematics for Gear Skiving

December 11, 2023

Christopher Janßen, Stylianos Tsakiris, Mareike Solf, and Dr.-Ing. Thomas Bergs

Gear skiving is used for both soft and hard finishing. As a quality critical final step in hard finishing, the process can be used to create modifications to the tooth flank. At present there is no knowledge of the extent to which topological modifications can be applied by gear skiving. In this report, the feasibility of manufacturing topological modifications on an external gear through adapted kinematics for gear skiving has been investigated.

Workforce Development: The Video Game

Influencers, Innovators and Gamers Collaborate to Bolster STEM Initiatives

December 11, 2023

I grew up playing video games in the 1980s/1990s. Today, my kids not only play video games, but could discuss coding, designing, and marketing at length on their YouTube channel. This generation is growing up with technology no other generation has ever had.

ANCA MX7 Linear Assists Clortech with Tooling Needs

December 11, 2023

Founded in 1987 by Clorindo Mattei, Clortech Precision Cutting Tools is a family business with wife Carmela handling bookkeeping, while son Patrick is the vice-president of production and sisters Emilia and Mena are the managing director and quality assurance director respectively. The company is a Montreal manufacturer of custom precision tools that sells to various industries including aerospace, recreational vehicles, rail and automotive. Products include shafts, gauges, broaches, bushings, extra-long reamers, special diameter formed end mills, special contouring tools.

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CoroCut 2 Offers Versatile Parting and Grooving to Stay on Track

October 12, 2023

Cutting tool and tooling system specialist Sandvik Coromant is upgrading its long-established CoroCut 1-2 parting and grooving concept. Improved stability, even greater flexibility, and significant productivity gains are just some of the benefits offered by the new CoroCut 2 system.

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Jergens Adds Adaptix Vise Jaws for Versatile Part Holding

October 12, 2023

Jergens partners with Norgren to engineer the Adaptix vise jaw system into its line of production vises. The unique design – which incorporates sliding fingers with replaceable studs and fingertips – clamps challenging workpieces quickly and securely for machining. With this, Adaptix is mounted to the vise body in place of standard jaws to accommodate part configurations, adapting to asymmetrical and other features quickly.

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GMTA Offers Profilator 300-V with Linear Drives to North American Market

September 15, 2023

German Machine Tools of America (GMTA) is now selling Profilator 300-V with linear drives in the North American market.
This modular machine platform used to cut gears, is equipped with one or two workpiece spindles in a compact design. It offers maximum flexibility due to modular design and is individually configurable for various machining processes (i.e. Scudding, hobbing, cycloidal milling, pointing, chamfering and deburring). State-of-the-art linear drives in the x and y axis, as well as a torque drive in the a axis offers high machine dynamics for short cycle times and maximum accuracy/low costs. High machine rigidity is available for Hard Scudding of inner and outer diameters.

Jorgensen Partners with Will-Fill on Coolant Management System

December 6, 2022

As of November 1, Jorgensen Conveyor and Filtration Solutions has entered into a partnership with Will-Fill, a manufacturer of fully automatic coolant monitoring and managing systems. The strategic partnership allows Jorgensen to offer customers complete and worry-free coolant management systems, such as the company’s recently launched PermaClean, that provide both filtering and measuring capabilities for an all-in-one solution.

Bega Special Tools Quick-Heater Can be Used for Mounting, Dismounting, and Pre-Heating

December 11, 2023

Bega Special Tools introduces a portable multi-purpose induction heater on the North American market. The MF Quick-Heater 3.0-3.5 kW can be used for mounting, dismounting and pre-heating purposes. Weighing less than 8 kg and fitting in a small carrying case, this easy-to-use but powerful tool is just plugged into the mains 230 V. It can be used in difficult circumstances where other systems are impossible to operate, for instance where there is little space to work in or where no open fire is permitted. The heater’s flexible inductors are ideal for a large variety of parts with a maximum diameter of 120 mm. Application examples can be found in all types of industries.

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TCI Precision Metals A36 Carbon Steel Blanks Now Available Online

November 1, 2023

TCI Precision Metals announces that its A36 Carbon Steel, Ready-to-Ship blanks are now available from OnlineMetals.com, an e-commerce metal and plastics supplier. The pre-machined blanks allow customers to order flat, square, and parallel materials to close tolerance specifications.

Sandvik Coromant Net-Zero Target Validated by Science-Based Targets Initiative

December 11, 2023

Through the wider Sandvik Group, Sandvik Coromant has committed to near-term, companywide emission reductions in line with climate science with the Science Based Target initiative (SBTi). Aligned with the goals of the Paris Agreement and the United Nations Sustainable Development Goals (SDG), Sandvik Coromant’s own sustainable business targets have been set in line with the SBTi’s criteria as part of the organization's commitment to reducing its greenhouse gas emissions and practicing responsible manufacturing.

AGMA Technical Committee Update

FTM 2024 Call for Papers

December 11, 2023

For each FTM, AGMA selects abstracts submitted by authors for development into technical papers. Subject matter may include topics relevant to the gear industry, such as design and analysis; manufacturing and quality; materials, metallurgy, and heat treatment; operation, maintenance, and efficiency; and gear failure. The papers then go through a double-blind peer review process to ensure the efficacy of the research. The authors then present the results of their work at the FTM.

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