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Gear Technology

July 2023

gt0723


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Publisher's Page

You're Not Alone

July 26, 2023
Randy Stott
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I’m a fan of The History Channel’s survival competition TV series Alone, where contestants are left in the wilderness to fend for themselves with limited resources in extremely harsh conditions. They have to build their own shelters, find food and survive. The last one to tap out wins.


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Feature Articles

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CTI USA Symposium 2023 Recap

Range anxiety, infrastructure debates, raw material shortages and unanswered questions shake up automotive’s move toward electrification—the journey won’t be easy, but the industry will push technology until it finds a way.
July 26, 2023
Matthew Jaster
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Range anxiety, infrastructure debates, raw material shortages and unanswered questions shake up automotive’s move toward electrification—the journey won’t be easy, but the industry will push technology until it finds a way. 


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Efficient Turnkey Machining of Complex E-drive Components

Perfect E-Shaft with Integrated Production Solution
July 27, 2023
Kerstin Stumpf-Trautmann
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For the transmissions of electric vehicles to develop the desired high torque under all driving conditions, a very large gear ratio is needed, which requires high speeds. And to ensure sufficient momentum at all speeds and enable the driver to accelerate without shifting gears, the electric drive must achieve up to 15,000 rpm, which is about three times that of a typical combustion engine. This puts a lot of strain on the rotor shaft. The manufacturers of rotor shafts are thus facing new challenges, such as the significantly lower shape and position tolerances and the need for greater machining precision.

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Custom-Fit Robot Solutions Ensure Fast Parts Flow in Production

EMAG develops integrated automation solutions
July 27, 2023
Oliver Hagenlocher
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Production solutions with robotic automation are on the rise: With their help, a fast and low-manpower flow of parts can be established within a site—thus reducing unit production costs and increasing production reliability and quality. In this example, EMAG links pick-up machine technology with highly individual robot solutions designed within the requirements of the workpiece and the production process. What are the important details?


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Improving In-Process Gear Manufacturing Quality to Meet New E-Drive Demands

The use of noncontact technology for gear quality control
July 27, 2023
Marco Curina
No Comments

A combination of international regulations and consumer expectations is driving the demand for reduced noise on all drivetrain components. Further demand is driven by the growing trend towards EVs and HEVs, where noise from ICE is intermittent or no longer present, and the contribution of transmission noise to overall vehicle noise becomes dominant.


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Technical Articles

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Profile Shift

July 27, 2023
Robert Errichello
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The objective of this report is to determine the origin of the phrase “profile shift.” Several technical books, technical papers, and industrial standards were reviewed for nomenclature associated with profile shift. The phrase “profile shift” translates directly to the German term “Profilverschiebung,” which originated in the last quarter of the 19th century. At first, profile shift was used to avoid undercutting pinions with small numbers of teeth. Later, it was recognized that profile shift improved the load capacity of the gear mesh and extended the service life of manufacturing tools.


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Load Capacity Evaluation of Production-Related Geometry Adjustments via STEP Import in BECAL

Using the Example of a Freeform Milled Bevel Gear
July 27, 2023
Dr.-Ing. Thomas Glaser and Dr.-Ing. Stefan Schumann
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Bevel gears are widely used in various industrial applications, such as automotive, aerospace, and marine industries, due to their ability to transfer power between non-parallel shafts. The conventional manufacturing of bevel gears involves several time-consuming and costly processes, including gear blank preparation, gear cutting, and gear finishing. The increasing demands on gear components regarding increasing power density, reducing installation space, reducing weight, and increasing efficiency are also reflected in the design of gear components. The reduction of installation space and weight as well as the increase in power density often leads to an optimized wheel body design that interacts with the gearing in terms of load capacity and stiffness. This leads to an increase in the required geometric degrees of freedom (DOFs). Due to the resulting complex wheel body shapes and different production-related effects, production-related geometry adjustments may also be necessary. Tools for evaluating the gearing in combination with the wheel body shape and its influences nowadays form the basis for unlocking the holistic optimization potential of transmission components. 


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Addendum

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Addendum

Primal Printing

July 27, 2023
Matthew Jaster
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Can a technophile 3D-print a giant replica from the new Transformers film? Of course—it’s 2023 and additive manufacturing is enabling engineers to test manufacturing material boundaries daily.


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Voices

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Voices

An Intimate Tradeshow with Endless Opportunities

July 26, 2023
Steve Janke
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As the chairperson for the American Gear Manufacturers Association (AGMA) Tradeshow Committee, I can tell you that we have not stopped working to make Motion + Power Technology Expo (MPT Expo) the type of show that delivers quality leads and a platform for showcasing your latest innovations in mechanical, electric and fluid power.


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Product News

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Two-in-One: CNC Precision Grind Both Worms and Gears

May 24, 2023
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Manufacturing high-accuracy worm gears and screws alongside precision spur and helical gears has traditionally required the use of two quite different CNC grinding machines. Thanks to PTG Holroyd’s newly launched HG350-WG worm and gear grinding center, however, just one machine can now complete both tasks.


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Mazak Showcases Ez Affordable Productivity at WMTS 2023

May 10, 2023

The Kentucky-built Mazak Ez Series comes to Canada for the Western Manufacturing Technology Show in Edmonton. In booth 308, Mazak will feature its QT-Ez 12MY Multi-Tasking Turning Center and VC-Ez 20 Vertical Machining Center, both from the series of machines that put Mazak quality and reliability within reach for virtually any shop with productive, space-saving efficiency at an affordable price.


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Industry News

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Ross Wegryn-Jones Joins Bourn & Koch

June 2, 2023

Bourn & Koch, Inc. of Rockford, IL, is pleased to report that Ross Wegryn-Jones has recently joined the company as our National Sales Manager. Ross will be responsible for the sales of gear manufacturing machines, precision grinding machines, and specialty machine tools for unique manufacturing applications. This includes Bourn & Koch horizontal gear hobbers; Fellows gear shapers; Blanchard rotary surface grinders, and Bourn & Koch’s new MT3 vertical grinding machine. 


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Forest City Gear Hires Kevin Rogers as Quoting Engineer

May 30, 2023

Forest City Gear, an industry-leading manufacturer of fine and medium pitch custom gears, is proud to announce the hire of Kevin Rogers as Quoting Engineer. Some of his responsibilities in this role include reviewing and generating new requests for quotes and working with clients to determine their orders’ special requirements.  


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Sandvik Coromant at the Forefront of Automotive Metal-Cutting Research

June 2, 2023

Global leader in metal cutting Sandvik Coromant has announced its participation in Rota 2030, a federal government program designed to support and boost Brazil’s automotive sector. The company will contribute to R&D projects on an ongoing basis to educate the next generation of talent, establish fiercer competition among automakers and ensure the continued development of cutting-edge technologies and processes.


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Stäubli Group Appoints New CFO

June 2, 2023

Stäubli, a global leader in industrial and mechatronic solutions, has appointed Roger Schnüriger as its new Group Chief Financial Officer (CFO) and member of the Group Executive Committee. He will assume his new role as of June 1, 2023.


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Tech Talk

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AGMA Technical Committee Update

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Tech Talk

ABMA Update

July 27, 2023
Phillip Olson
No Comments

The individual components that go into a power transmission system such as gears, bearings, shafts, seals, fasteners, housings, or lubricant, all affect one another. A small tweak to the design of one may require a cascade of other design changes throughout the system. Because of this, the gear engineer should have some knowledge of the design of components besides gears. To that point, for this month’s article, I’m taking a sidestep from writing about gears to give an update on bearings; components found in nearly every power transmission system.


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