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Gear Technology

March/April 2023

Volume: 40
Edition: 2

gt0323


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Feature Articles

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Maximizing Wind Turbine Gearbox Performance with Advanced Engineering Simulation

ZF Wind Power achieves wind turbine gearbox efficiency and reliability through Siemens Simcenter Solutions
April 14, 2023
Matthew Jaster

Wind power has emerged as one of the most important sources of renewable energy in recent years. The global wind power capacity was estimated to be 837 gigawatts in 2021 (statista.com). In the United States alone, wind is the largest source of renewable electricity, providing 10.2 percent of the country’s electricity and still growing (cleanpower.org/facts/wind-power/). However, to ensure maximum power generation, the efficiency and reliability of the wind turbine are critical.


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What’s Happening in Heat Treating?

Acquisitions, retirements and facility expansions highlight start to 2023
April 14, 2023
Matthew Jaster

Quality control, EV components, energy consumption and material influences are just a handful of topics being discussed in heat treating today. New heat treat methods and global trends will be the topic of conversation later this year at Heat Treat 2023. Here’s a round-up of some stories circulating across key market segments.


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The Secrets to Implementing Lights-Out Machining

Making a whole day productive requires strategy not staffing
April 14, 2023
Simon Richardson

It’s little wonder there’s more and more interest in the potential of lights-out or unattended production. The benefits seem immediately obvious. Staffing costs fall significantly if you can run equipment unsupervised, or with far fewer operators. Production capacity of the business greatly increases, offering the opportunity to add more customers without the expense of adding new equipment or staff.


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Take Control of Quenching

Press quenching technology for more hardening consistency, improved operator efficiency, and faster throughput of a wide range of gears and other close-tolerance cylindrical components
April 14, 2023
Ian Schickling

Press quenching is a tried-and-true process for the controlled hardening of flat, circular close tolerance parts. The process ensures good dimensional control and uniform hardening, thus allowing for seamless processing post heat treatment.


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Technical Articles

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Conjugate Gears

April 14, 2023
Robert Errichello and Dr. Hermann J. Stadtfeld

The conjugacy of meshing gears is one of the most important attributes of gears because it ensures a constant velocity ratio that gives smooth, uniform transmission of motion and torque. Some of the world’s greatest gear theoreticians like Earle Buckingham, Wells Coleman, and John Colbourne laid the foundation for understanding conjugacy. Their teachings and interpretations of the law of gearing have been used by generations of gear engineers to design and manufacture gear transmissions for almost everything that is mechanically actuated. 


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Closed Loop for Gears: Some Case Studies

April 14, 2023
Max Turci

The closed-loop concept has become widespread in recent years, especially in relation to the Industry 4.0 concept. The term “closed loop” will be used herein to refer to the pairing of specifications and checking (Figure 1) which all ISO standards, starting with ISO 1, the “mother” of all standards, use in relation to GPS (Geometrical Product Specifications).


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Addendum

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Hazardous Occupation

Combat engineers have stood at the forefront of military campaigns throughout history.
April 14, 2023
Matthew Jaster

Where there’s war, there’s a combat engineer (sapper) waiting in the wings to construct fortifications, build strategic roads or blow up enemy fortresses. For as long as humanity has been fighting, engineers have risked their own lives carrying out vital tasks on the battlefield.


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Product News

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Krebs & Reidel Offer Premium Grinding Wheels with High Process Reliability

March 20, 2023
Philipp Bötte

Serial production of large gears requires a high level of quality, excellence, and continuity in production. Emphasis is placed on maximum synergy between the grinding machine, the grinding process, and the grinding wheel. After several successful trials on various Klingelnberg Höfler Rapid grinding machines carried out by Krebs & Riedel with customers in their production facilities, Krebs & Riedel has received several large orders for grinding large gears from abroad and has introduced the new premium grinding wheels with high process reliability. 


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Mitutoyo America Corporation Releases New IDC Indicators

January 25, 2023

Mitutoyo America Corporation, a leading manufacturer of precision metrology instruments and solutions, is proud to announce new versions of the IDC, IDF and IDS series of digimatic indicators and products built around these indicators such as depth and thickness gages. 


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FVA-Workbench 8.0 Released

March 1, 2023

The latest version offers a wide range of powerful new features, from a new gear design module, to the influence of the wheel body during a complete rollover, to new display options for 3D images and animation of the gearbox kinematics in reports.


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NUM Offers Tool Grinding Software to Denmark Tooling Company

March 20, 2023

TN Vaerktoejsslibning, Denmark’s second-largest precision tooling company, is deploying Numroto, the programming system for tool grinding from NUM across its entire production floor. The company cites highly successful long-term experience of the software, together with excellent technical support from NUM, as the key reasons for choosing to standardize on Numroto.


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All-Directional Y-Axis Turning

New machining method opens up for turning several complex features with one tool
March 8, 2023

Sandvik Coromant, a cutting tool and tooling system specialist, has introduced a new method for turning complicated shapes and pockets with a single tool. Y-axis turning offers benefits such as reduced cycle time, improved component surface quality and more stable machining.


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Industry News

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Forest City Gear Promotes Zac Denny to Setup Technician

March 1, 2023

Forest City Gear, an industry-leading manufacturer of fine and medium pitch custom gears, is proud to announce the promotion of Zac Denny to Setup Technician. In this role, he will oversee setup and operation of the MZ130 and Koepfer 153 machines.


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Lockheed Martin Enters Long-Term Agreement With Ronson Gears

March 1, 2023

Lockheed Martin Space has entered into its first-ever international Long-Term Agreement with Melbourne-based manufacturer Ronson Gears under its Global Supply Chain (GSC) Program agreement with the Commonwealth of Australia. This Long-Term Agreement will supply multiple gear and gear sets across various Space programs to enhance lead times while decreasing administrative burdens. 


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Croix Gear & Machining Announces New President

February 28, 2023

Croix Gear & Machining, recognized as a leader in the custom manufacturing of loose gears, announced the hiring of Michael J. Lindsay as President. Mr. Lindsay will assume responsibility for all manufacturing and business operations. Mr. Lindsay brings a proven track record for continual improvement in supply chain, scheduling, production, and quality to Croix Gear. 


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Southern Gear Adds Capacity for Large Ring Gears

February 27, 2023

Southern Gear has added two Hwacheon VT-1150+ Vertical Turning Centers to its gear production operations, both capable of high-speed, complete machining of ring gears and other cylindrical parts with diameters of 1,320 mm and lengths up to 950 mm. 


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Embracing Equity for Women in STEM

Hear from Sandvik Coromant’s president this International Women’s Day
March 8, 2023

This year’s International Women’s Day (IWD) follows the theme of “embracing equity”—focusing on giving fair opportunities for everyone to succeed. As a business invested in its people, metal-cutting leader Sandvik Coromant highlights the experience of its president, Helen Blomqvist.


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GT Extras

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State of the Gear Industry Perspectives: Forest City Gear

February 13, 2023

State of the Gear Industry Perspectives takes an in-depth look at the challenges and opportunities in gear manufacturing today and in the future. Our seventh installment online is an interview with Kika Young, president, and Jared Lyford, director of manufacturing operations at Forest City Gear (FCG). 


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Keeping Up with Manufacturing Changes

PrimeTurning machining method supports competition among manufacturers
February 8, 2023
Staffan Lundström
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The rise of electrification is happening more widely and suddenly than anyone expected, both for automobiles and for other types of electric vehicles (EVs). The global EV landscape is also more competitive than the automotive markets of previous decades, as more manufacturers—large and small—compete for space. How can manufacturers stay ahead of the competition while also overcoming the increasing challenges posed by difficult-to-machine materials, like high-strength steel? A new all-directional tooling method, combined with the next-generation CoroTurn Prime B-type insert from Sandvik Coromant, holds the answer.


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Tech Talk

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AGMA Technical Committee Update

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Fail Better

April 14, 2023
Phillip Olson

This month's issue of Gear Technology covers a subject engineers love to learn about from others but hate to learn about through firsthand experience: gear failure. In a broad sense, all engineering is concerned with failure. Eventually, all parts fail, so engineers need to determine the limits of their design and ensure that it will meet the requirements of the particular application.


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