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High-Volume Holemaking for Gear Production Success

Consider exchangeable-tip solid round cutting tools for durability, precision, and performance

High-volume holemaking in gear production demands not only speed and efficiency but also precision and reliability, particularly when working with critical components such as gearbox housings and gear blanks. These parts often require tightly toleranced holes that must be perfectly aligned to ensure proper assembly, load transfer, and long-term durability. For manufacturers, achieving these standards while maintaining cost-effectiveness is an ongoing challenge.

Profile Grinding of Large Gears

Increasing material removal efficiency through advanced infeed strategies

Drivetrain Integration

Flender unveils the next generation of wind gearboxes

Gear Heat Treatment Selection with a Duty Test Matrix

A practical framework for matching requirements to process routes and proof tests

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Technical Articles

The Intrinsic Pitch Cones in Hypoid Gears

A method to calculate pitch cones for hypoid gears using macrogeometry parameters—similar to non-offset bevel gears—while accounting for the added complexity of hypoid offset, tooling, and cutting technology is explored in this paper.

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Water Spray Quenching—A New Intensive Quenching Process for Case Hardening of Gears

Water spray quenching achieves heat transfer coefficients up to 4,000 W/(m²K)—nearly double conventional oil quenching rates—enabling potential material substitution and tailored quench intensity for complex gear components.

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Influence of Tooth Root Contour Deviations on the Tooth Bending Strength

This study investigates how manufacturing-related geometry deviations in the tooth root area affect gear bending strength calculations, demonstrating that accounting for measured tooth contours rather than nominal geometries is essential for accurate material comparisons in fatigue testing.

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Prospects of Asymmetric Gears in EV Gearbox

The paper examines how optimizing asymmetric gear tooth geometry through Direct Gear Design can improve load capacity, efficiency, and compactness in EV gearboxes, surpassing the performance limits of conventional symmetric gears.

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Design

Grinding

The trend towards hard fine finishing of gears for automotive transmissions is accelerating. In recent years, the focus has been on increasing the efficiency of gears in order to make optimum use of the narrow gear ratio range, gear by gear, and to reduce fuel consumption. Surface finish, in particular, is under increased scrutiny since it plays such a decisive role in achieving the noise and efficiency requirements of gear units for today’s EV applications.

NVH

The arrival of Gleason’s Hard Finishing Cell (HFC) in 2018 represented a paradigm shift in the way automotive transmission gears and gears for e-drives, could be produced in high volumes. Now, for the first time, 100 percent inspection of every gear, and every gear tooth was possible in-process, without impacting the high speeds at which these gears need to be hard finished. Identifying, and correcting for, conditions that create unacceptable noise behavior in these gears, on the fly, was finally a reality too.

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

Grob Showcases Gear Ring Production with Power Skiving

The Grob G750T boasts efficient machining for gear rings by offering precise and efficient power skiving and seamless integration of milling and turning for maximum flexibility and productivity.

Industry News

The Motion + Power Manufacturers Alliance (MPMA) today announces new Board, Officers, and other leadership changes for 2026–2027. Joining the Board of Directors are Michael Kapp, General Manager of KAPP NILES and Jared Scott, National Training Manager, SEW-Eurodrive.  MPMA members elected the two leaders at their Annual Meeting, held April 23-26 at the Sunseeker Resort in Port Charlotte, FL.  They will begin their three-year terms at the August 2026 Board Meeting.

Product News

Metal cutting specialist and manufacturing solutions provider Sandvik Coromant has upgraded its tool reconditioning service for solid, round cutting tools to give manufacturers complete control over their reconditioning process. The upgraded service replaces a previously manual, multistage workflow with a streamlined, fully online experience that dramatically reduces quoting and turnaround times.

Calendar

The Manufacturing Engineering Division (MED) of ASME sponsors the Manufacturing Science and Engineering Conference (MSEC) every June. MSEC (State College, PA) is the annual forum for the exchange of advanced manufacturing research knowledge. It is intended to disseminate the most recent developments in manufacturing research through technical presentations, poster sessions and panel sessions. The event is hosted by Penn State University.

WZL Gear Conference USA

Jul 15, 2026 - Jul 16, 2026

Gear Up for Precision Open House

Jun 9, 2026 - Jun 10, 2026

Fabtech Canada

Jun 9, 2026 - Jun 11, 2026

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