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The Digital Ecosystem with Ipsen

IIoT, AI and automation integration leads to enhanced heat treat capabilities

By understanding customers’ manufacturing and heat-treatment processes, Ipsen identifies pain points and develops IIoT and AI-driven solutions that improve operational efficiency.

Farewell to an Idea

The impact of steel tariffs on the gear industry

Machine and Tool Concepts for Contract Manufacturing

Liebherr solutions enhance flexibility, accuracy, and efficiency at SPN Schwaben Präzision

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Technical Articles

Hard Skiving of an Internal DIN5480 Spline—A Process Analysis

This report uses an application case to demonstrate the optimization potential of gear skiving in the production of internal splines on a universal machining center. The process established in the example is then analyzed using the software tool OpenSkiving developed by the wbk Institute of Production Science of the Karlsruhe Institute of Technology (KIT) and the results are discussed. Finally, the most important findings are summarized.

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Very High Cycle Fatigue Testing of AMS 6308 Steel

In this paper, ultrasonic fatigue testing results for “core hardened” AMS 6308 gear steel are presented. AMS 6308 is a gear and bearing steel with high tempering resistance and high hot hardness case targeted to high temperature applications

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Cutting Tool Selection Criteria for Cylindrical Gear Manufacturing

This paper is divided into two parts. The first part is a general digression on the pressure angle on cylindrical gears. The pressure angle is a variable that plays an important role in defining the geometry of gears and hobs, yet it is not widely discussed. This introduction serves as a prerequisite for the second part of the paper. The second part will show an application case of choosing the most suitable hob to cut a given gear. In this selection process, particular attention will be paid to the pressure angle of the hob for cutting with modified rolling, i.e., with a reduced pressure angle compared to that of the gear.

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Investigation of the Interaction Between Process Signals and Modeled Thermomechanical Energy in Generating Gear Grinding

The approach developed in this research aims to aid a further understanding of the correlations between the energy generated during material removal and the power signals from the machine control during generating gear grinding.

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Design

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!


Grinding

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.

Inspection

In conventional gear manufacturing, quality control is carried out for a number of pieces per batch. Most parts enter final gearbox assembly without any inspection. Among other things, this approach is based on two facts: measuring time is significantly longer than the machining time, and the limited measuring capacity available.

Heat Treating

The roots of heat-treating run deep within ASM (American Society for Materials) International, as its society was founded in Detroit in 1913 as The Steel Treaters Club. The heat-treating constituency of ASM created the Heat Treating Society (HTS) to provide focused leadership, communications, and service development to its network of worldwide membership of captive and commercial heat treaters, equipment manufacturers, researchers, governments, and technicians. To discuss Heat Treat 2023, the 32nd annual HTS Conference and Exhibition, Gear
Technology took a moment to catch up with conference chair Andrew Banka, vice president of Airflow Sciences Corporation. Heat Treat 2023 is colocated with IMAT and Motion + Power Technology Expo in Detroit, October 17–19.

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Videos

Aerospace Grinding Summit Recap

United Grinding recaps a successful Aerospace Summit 2024 where the industry showcased the latest aerospace technologies and innovations.  Demos included grinding of nonferrous advanced aerospace material with dressable super abrasives on the MÄGERLE MFP 30, improving grinding performance through optimized dressing techniques, single-step finishing of multifeature and mixed-material shaft components containing hard coatings on the Studer S41 and much more! 

Industry News

The American Gear Manufacturers Association (AGMA) and the American Bearing Manufacturers Association (ABMA) merged to form the Motion and Power Manufacturers Alliance (MPMA) at the AGMA/ABMA Annual Meeting in Austin, Texas. Along with the merger, the newly formed MPMA announced its inaugural Board of Directors and Executive Committee.

Product News

The L.S. Starrett Company will be featuring the automated inspection capabilities of its metrology and force measurement systems at Manufacturing Technology Series East (formally known as EASTEC) Booth #3244 at Eastern States Exposition in West Springfield, MA from May 13-15 this year. 

Calendar

The 11th International VDI Conference on Gears 2025 will be held in Garching, Munich at the Gear Research Centre (FZG) of the Technical University of Munich. Supported by national and international associations, the conference brings together 500+ leading experts from the international gear and transmission industry. Visiting the conference gives attendees the opportunity to take part in this leading international forum and learn about the latest developments and research results in the powertrain industry and academia.

Wenzel and Nidec Open House 2025

Jun 17, 2025 - Jun 18, 2025

Automatica 2025

Jun 24, 2025 - Jun 27, 2025

Realize Live Americas

Jun 2, 2025 - Jun 5, 2025

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