TOPICS CALENDAR BUYER'S GUIDE AGMA

Alloys

TECHNICAL ARTICLES | 2025-04-15

The Role of In-Situ Techniques in Microstructure Optimization of Interstitially Alloyed Steels

Various in-situ methods can track realtime heat treatment response in bulk materials. This can aid material engineers in designing the most effective heat treatment procedures and processing methods. In-situ methods such as thermogravimetry (TG), differential thermal analysis (DTA), and dilatometry, offer capabilities to examine heat treatment behavior in real time, giving insight into the thermochemical mechanisms and the thermal behavior of steel.

FEATURE ARTICLES | 2025-04-08

LIFT Opens Advanced Metallic Production and Processing (AMPP) Center in Detroit

LIFT, the Department of Defense-supported national advanced materials manufacturing innovation institute, has officially opened its state-of-the-art Advanced Metallic Production and Processing (AMPP) Center in Detroit’s historic Corktown district. This facility will play a critical role in strengthening the U.S. industrial base by accelerating the design, development, and deployment of novel metallic materials, filling a key gap in the nation’s defense manufacturing base.

PRODUCT NEWS | 2025-03-10

TCI Precision Metals Introduces Custom–Cut, Ready–to–Ship Blanks

TCI Precision Metals has introduced custom-cut, ready-to-ship blanks. Customers can now order custom-sized, pre-machined materials that ship fast and arrive ready to go directly from receiving to finish machining.

INDUSTRY NEWS | 2021-06-11

Buehler Offers Etching and Microstructures of Titanium Alloys Webinar

Buehler is offering an educational webinar on Etching and Microstructure Analysis of Titanium Alloys on, June 30, 2021 at 12:00 pm CST. T...

GEAR TALK WITH CHUCK | 2019-08-29

Appreciating the Gory Details

Big equipment often requires special processing equipment. Those 300-ton locomotives used unique heat treatment on the gears which required the des...

GEAR TALK WITH CHUCK | 2019-08-22

Situational Ethics

Recalling Solidarity protests while watching the Hong Kong Airport occupation reminds me that change is messy. As much as we Americans would like t...

GEAR TALK WITH CHUCK | 2019-08-15

A Global Gear Community

Roman Cisek’s journey from Poland to the United States is an example of how the gear trade has become one big international community. A few weeks ...

GEAR TALK WITH CHUCK | 2019-05-24

Finding the Limits

Jim Richard’s account of his journey from youthful experimenter to designer of cutting edge gear processing equipment illustrates the amazing thing...

FEATURE ARTICLES | 2018-11-01

Admire its Purity

As gear manufacturing techniques become more precise and demanding, there is a growing demand for cleaner, higher quality steel.

INDUSTRY NEWS | 2018-08-15

IMTS 2018: A Field Guide

Chicago Preps for the Next Manufacturing Technology Extravaganza Matthew Jaster, Senior Editor

GEAR TALK WITH CHUCK | 2018-06-12

Can We Use This Instead?

Right up there with the dreaded “blank sheet of paper” is the inevitable question of “Can we use this instead?” It came as a real shock to me the f...

GEAR TALK WITH CHUCK | 2017-10-03

Education vs. Training

Buried deep within the never ending debate on job growth is a fundamental misunderstanding on the difference between education and training. I am a...

GEAR TALK WITH CHUCK | 2015-01-09

It’s All About Context

[starbox] I was one of those kids that loved reading the dictionary to learn new words, and that interest has continued into my golden years. Th...

TECHNICAL ARTICLES | 2010-01-01

Design, Development and Application of New, High-Performance Gear Steels

QuesTek Innovations LLC is applying its Materials by Design computational design technology to develop a new class of high-strength, secondary hardening gear steels that are optimized for high-temperature, low-pressure (i.e., vacuum) carburization. The new alloys offer three different levels of case hardness (with the ability to “dial-in” hardness profiles, including exceptionally high case hardness), and their high core strength, toughness and other properties offer the potential to reduce drivetrain weight or increase power density relative to incumbent alloys such as AISI 9310 or Pyrowear Alloy 53.

FEATURE ARTICLES | 1999-11-01

Coordinate Measuring Machines and the Gear Industry

Gears are extremely complex shapes. Coordinate measuring machines, or CMMs, are designed to measure complex shapes. It seems to follow that CMMs world, therefore, be the ideal tool for measuring gears. But the answer is not so simple.

INDUSTRY NEWS | 1999-09-01

Industry News

Industry News for September/October 1999.

PRODUCT NEWS | 1999-09-01

Product News

Welcome to our Product News page. Here we feature new products of interest to the gear and gear products markets.

TECHNICAL ARTICLES | 1998-01-01

Influence of Gear Design on Gearbox Radiated Noise

A major source of helicopter cabin noise (which has been measured at over 100 decibels sound pressure level) is the gearbox. Reduction of this noise is a NASA and U.S. Army goal. A requirement for the Army/NASA Advanced Rotorcraft Transmission project was a 10 dB noise reduction compared to current designs.

TECHNICAL ARTICLES | 1990-07-01

Efficient Methods for the Synthesis of Compound Planetary Differential Gear Trains for Multiple Speed Ratio Generation

This article presents an efficient and direct method for the synthesis of compound planetary differential gear trains for the generation of specified multiple speed ratios. It is a train-value method that utilizes the train values of the integrated train components of the systems to form design equations which are solved for the tooth numbers of the gears, the number of mating gear sets and the number of external contacts in the system. Application examples, including vehicle differential transmission units, rear-end differentials with unit and fractional speed ratios, multi-input functions generators and robot wrist joints are given.

TECHNICAL ARTICLES | 1989-01-01

Factors Influencing Fracture Toughness of High-Carbon Martensitic Steels

Plane strain fracture toughness of twelve high-carbon steels has been evaluated to study the influence of alloying elements, carbon content and retained austenite. The steels were especially designed to simulate the carburized case microstructure of commonly used automotive type gear steels. Results show that a small variation in carbon can influence the K IC significantly. The beneficial effect of retained austenite depends both on its amount and distribution. The alloy effect, particularly nickel, becomes significant only after the alloy content exceeds a minimum amount. Small amounts of boron also appear beneficial.

TECHNICAL ARTICLES | 1987-07-01

Cutting Fluid Selection and Process Controls for the Gear Manufacturing Industry

The last decade has been a period of far-reaching change for the metal working industry. The effect of higher lubricant costs, technical advances in machine design and increasing competition are making it essential that manufacturers of gears pay more attention to testing, selecting and controlling cutting fluid systems. Lubricant costs are not a large percentage of the process cost relative to items such as raw materials, equipment and labor, and this small relative cost has tended to reduce the economic incentive to evaluate and to change cutting fluids.

TECHNICAL ARTICLES | 1987-05-01

Rotary Gear Honing

Rotary gear honing is a hard gear finishing process that was developed to improve the sound characteristics of hardened gears by: Removing nicks and burrs; improving surface finish; and making minor corrections in tooth irregularities caused by heat-treat distortion.