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Aerospace

INDUSTRY NEWS | 2025-02-27

Solar Atmospheres Adds Two Additional 2-Bar Vacuum Furnaces

Solar Atmospheres in Souderton, PA, is currently commissioning two additional 2-bar vacuum furnaces, expanding its capabilities to meet increased demand in the aerospace, industrial gas turbine sectors, and for specialized hydride/de-hydride processing of Titanium, Tantalum, and Niobium. These vacuum furnaces, produced by Solar's sister company, Solar Manufacturing, feature large working hot zones (45” x 45” x 72”) and are rated for operations up to 2400°F with a precise temperature uniformity of ±10°F.

INDUSTRY NEWS | 2025-01-21

Standard Bots Acquires Ready Robotics

By acquiring READY Robotics’ automation IP, Standard Bots is able to accelerate the development of their AI-powered platform, and their mission to improve accessibility in robotics space. This IP purchase includes all the software, patents, and trademarks owned by READY Robotics. 

ADDENDUM | 2024-12-12

Galactic Guidance

Liebherr’s components product segment and mtex antenna technology joined forces in 2023 to provide the antennas for the next generation Very Large Array antennas (ngVLA), which will offer a glimpse into the infinite space reach. 

INDUSTRY NEWS | 2024-12-12

Solar Atmospheres South Carolina Facility Awarded Parker Aerospace Approval

Solar Atmospheres Greenville, SC facility is pleased to announce it has been awarded Parker Aerospace approval. This achievement expands Solar Atmospheres' reach, offering five facilities able to assist customers with Parker Aerospace thermal processing requirements.

INDUSTRY NEWS | 2024-12-10

Nitrex to Deliver Seventh Vacuum Furnace to Leading Aerospace Manufacturer

A major North American aerospace manufacturer has selected Nitrex Vacuum to support its growing production needs, placing an order for a seventh vacuum furnace to expand capacity. This new vertical, large-precision vacuum furnace, built by G-M Enterprises, a Nitrex company, is engineered to meet the stringent demands of aerospace manufacturing, delivering consistent performance and reliability for critical engine components.

PRODUCT NEWS | 2024-10-22

GF Machining Solutions Develops Next Generation Wire EDM Machine

With the goals of increased flexibility and reduced maintenance in mind, GF Machining Solutions developed its next generation CUT S 400 Dedicated wire electrical discharge machine (EDM) that improves the overall production of aerospace jet engine turbine disks, in particular for cutting their fir tree blade patterns. With advanced features and capabilities, the new machine allows manufacturers to cut a wider range of turbine blade diameters and do so with fewer production interruptions due to typical EDM setup and maintenance issues. 

FEATURE ARTICLES | 2024-08-15

Mission to Mars

If all goes as planned, NASA will launch its Sample Retrieval Lander (SRL) Mars mission from Florida’s Space Coast in June 2028, the start of its latest, and greatest, mission to Mars. By sometime in the early 2030s, the SRL mission will have succeeded in traveling to Mars; gathering samples already collected by the Perseverance Rover; launching them into Mars orbit; and capturing and returning them safely to Earth. For NASA’s scientists, the SRL mission is the culmination of a decades-long series of Mars explorations designed to find evidence of life outside of Earth or, at the very least, provide important insights into the origin of life here on Earth.

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INDUSTRY NEWS | 2024-08-15

Zeiss and CleanControlling Cooperate on Industrial Analysis Techniques

Zeiss and CleanControlling, a leading test laboratory for technical cleanliness, signed a cooperation agreement in April. The goal of the cooperation is to optimize products and industrial analysis techniques, and to set new market standards.

VIDEO | 2024-06-03

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 | 2024-04-08

Solar Atmospheres South Carolina Facility Awarded Lockheed Martin Space Systems Approval

Solar Atmospheres Greenville, SC facility is pleased to announce it has been awarded Lockheed Martin Space Systems approval. With this approval, now all five Solar Atmospheres facilities are an option for our customers with Lockheed Martin requirements for thermal processing services.

INDUSTRY NEWS | 2023-12-21

Avers Machine & Gear Has Acquired Fox Tool & Manufacturing

Avers Machine & Gear has acquired Fox Tool & Manufacturing located in Woodstock, Illinois. Fox Tool & Manufacturing is an Aerospace Machine shop that is AS9100D Certified, ISO 9001/2015 Certified, and ITAR Registered and has been operating for close to 40 years.

VIDEO | 2023-09-25

Inside the DMG Mori Portal Series

Automobile manufacturers can develop ever more sophisticated car body molds because they can rely on 5-axis portal machines as the backbone of automotive tool and die making. The aerospace industry achieves unprecedented part quality thanks to full technology integration of milling, turning and grinding, ensuring maximum passenger safety. Thanks to 5-axis technology in large format, portal machines ensure that hydroelectric power can be converted into energy. Mechanical engineering also benefits worldwide from portal machines from Pfronten, which repeatedly demonstrate their performance in demanding machining operations such as gear production. DMG Mori has more than 1,400 Portal machines installed worldwide.

EVENT | 2023-09-15

Advanced Engineering 2024

Advanced Engineering (Birmingham) has rebranded to celebrate the evolution and new developments in the industrial manufacturing. Sectors include aerospace, automotive, defense, composites, marine, rail, energy, medical and more. To ensure that visitors and exhibitors can still easily find relevant contacts, Advanced Engineering exhibitors will now be categorized by the services, products and solutions offered. They will have the opportunity to highlight all of the sectors they work in, removing any limitations created by the specific show zones. Advanced Engineering will welcome back a full speaker program with representatives from some of the leading companies in UK manufacturing including GE, Shell, ZF, Bosch, Siemens, 3M, IBM, Airbus and more. 

INDUSTRY NEWS | 2023-09-12

Bevel Gears India's Role in the Chandrayaan-3 Moon Landing Mission

On August 23, 2023, India’s Chandrayaan-3 mission made a successful landing on the southern part of the moon near the crater Manzinus. We were able to catch up with Mushtaq Jamal, vice president of engineering and business development at Bevel Gears India Pvt Ltd (BGI), to discuss BGI's role in this monumental achievement for India. 

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INDUSTRY NEWS | 2023-06-02

Solar Atmospheres of California Adds Airbus Approval

Solar Atmospheres of California (SCA) is pleased to announce we are now Airbus approved for heat treating. 

INDUSTRY NEWS | 2023-03-22

Forest City Gear Attends Training Retreat Hosted by DMG MORI

Two Forest City Gear employees, CNC Supervisor Mike Miller and CNC Lead/Programmer Josh Gates, recently attended a four-day training retreat in Pfronten, Germany hosted by DMG MORI. The event featured various seminars and opportunities for guests to experience firsthand DMG’s newest equipment and technologies, as well as networking and a taste of German culture.

INDUSTRY NEWS | 2023-03-01

Lockheed Martin Enters Long-Term Agreement With Ronson Gears

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. 

INDUSTRY NEWS | 2023-02-13

State of the Gear Industry Perspectives: Forest City Gear

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). 

VIDEO | 2023-01-18

High-Speed Gearbox Test Stand from Cotta Transmission

Cotta has designed and manufactured a diverse line of high-speed gearboxes that are used by some of the largest OEM companies in the world for numerous R&D and production test stand applications for automotive, aerospace, and industrial applications.  This gearbox is high-speed and was designed for a customer’s R&D test stand application.  The gearbox will be going through extensive testing prior to being sent out to the customer. In addition to systematically and comprehensively monitoring the quality of all internal processes, first-piece inspection is conducted on every machining sequence, and every transmission is tested prior to shipment.

VIDEO | 2023-01-18

Forest City Gear Taps Helios Gear for Custom Cutting Tools

The Helios team delivered custom gear cutting tools to Forest City Gear in Roscoe, IL. See what Forest City Gear had to say about the process.

EVENT | 2023-01-17

IEEE Aerospace Conference 2025

Big Sky, Montana. The International IEEE Aerospace Conference, with AIAA and PHM Society as technical cosponsors, is organized to promote interdisciplinary understanding of aerospace systems, their underlying science and technology, and their applications to government and commercial endeavors. The annual, weeklong conference is set in a stimulating and thought-provoking environment. The 2025 conference will be the 46th in the series.
INDUSTRY NEWS | 2022-11-23

Solar Atmospheres Vacuum Heat Treats Titanium Manifold for Artemis 1 Mission

For the 2014 Orion launch, NASA introduced the Launch Abort System (LAS). This large manifold housing made from 6AL-4V titanium is designed to rapidly propel astronauts away from the main rocket in case of a catastrophic explosion or any other unexpected event. Once fired, the LAS will accelerate the astronauts away from the main rocket at forces up to 10 to 15 times normal gravity (“G’s”). This critical part of the safety system was once again vacuum heat treated by Solar Atmospheres of Western PA for their most recent launch. 

EVENT | 2022-10-03

Houstex 2023

SME's Manufacturing Technology Series in Houston, Texas brings together key decision makers, major tool and technology suppliers and thought leaders from across a broad spectrum of manufacturing disciplines. Hands-on equipment demonstrations, keynotes and panel discussions, emerging manufacturing technology showcases, and networking activities offer attendees an opportunity to learn about the latest manufacturing trends.

EVENT | 2022-09-22

SciTech 2023

From its creation in 1963, the American Institute of Aeronautics and Astronautics (AIAA) has organized conferences to serve the aerospace profession as part of its core mission. Spanning over 70 technical discipline areas, AIAA’s conferences provide scientists, engineers, and technologists the opportunity to present and disseminate their work in structured technical paper and poster sessions, learn about new technologies and advances from other presenters, further their professional development, and expand their professional networks that furthers their work.

INDUSTRY NEWS | 2022-08-22

Ceratizit Moves U.S. Headquarters

To centralize operations and continue to better serve its customers, tooling supplier Ceratizit USA, Inc. has shifted its official U.S. Headquarters from Warren, Michigan, to the company’s Schaumburg, Illinois, facility location. Ceratizit acquired the Schaumburg facility when it absorbed the Komet tooling brand name and product line under the Ceratizit Group umbrella.

INDUSTRY NEWS | 2022-08-16

Beaumont Machine Reacquired by Founders

Beaumont Machine is a builder of Electrical Discharge Machines (EDM) for the aerospace, power gen and electronics production industries. Founded by Ed and Tanya Beaumont over 30 years ago, the company was recently repurchased, after the owners had sold the business in early 2013.

INDUSTRY NEWS | 2022-07-18

DN Solutions Opens New Technical Support Office

DN Solutions (formerly Doosan Machine Tools) recently announced the opening of a Technical Support Office in Troy, Michigan. The new location will provide process improvements and technical solutions to both dealers and customers. 

PRODUCT NEWS | 2022-07-18

Guill Offers Internal Spline Tool for Aerospace Applications

Guill Tool, a growing supplier of components to the global aerospace industry, has announced the production of a new internal spline tool made of anodized carbon steel. 

INDUSTRY NEWS | 2022-06-29

TCI Precision Metals Offers Machine-Ready Blanks at IMTS 2022

TCI Precision Metals will be showing its precision Machine-Ready Blanks capabilities to customers at IMTS 2022, McCormick Place, Chicago, IL, September 12-17, 2022, West Building, Booth #432123. 

INDUSTRY NEWS | 2022-06-27

Ceratizit Adds Midwest Territory Sales Engineers

With the addition of two new sales engineers in the company’s Midwest Territory, Ceratizit USA looks to continue its double-digit growth while continuing to support and optimize customer tooling and machining processes.

TECHNICAL ARTICLES | 2022-06-27

Design and Simulation of a Back-to-Back Test Rig for Ultra High Cycle Fatigue Testing of Gears Under Fully Reversed Load

Aircraft engines can be made more efficient by integrating planetary gears. In such an application, the planetary gears experience very high load cycles under fully reversed bending loads. Pulsator test rigs, which nowadays offer the possibility to perform UHCF investigations, can only be used for purely pulsating loading of gears. Therefore, for the investigation of the UHCF tooth root load carrying capacity under fully reversed bending load, a back-to-back test rig is required. Back-to-back test rigs usually have speeds of n = 3,000 rpm, which makes investigations in the UHCF range take a very long time. Therefore, a high-speed back-to-back test rig was developed.

INDUSTRY NEWS | 2022-06-14

Ceratizit Doubles Eastern Territory Support Staff

With the recent addition of three new sales engineers and an application specialist, Ceratizit USA has doubled the size of its Eastern Territory sales and support team. In doing so, the company further improves response time and provides added expertise for its customers’ custom tooling challenges.

PRODUCT NEWS | 2022-05-26

GF Machining Solutions iWire Adapts to EDM Cutting Conditions

The new iWire function from GF Machining Solutions automatically identifies and adapts wire speed to changing erosion height conditions during the wire EDM process. This capability eliminates wire breakage while reducing overall wire consumption per job, in some instances by as much as 29 percent.

INDUSTRY NEWS | 2022-05-24

Chiron Presents Machining Innovations for the Future

The Chiron Group Open House in Tuttlingen, Germany welcomed more than 1,200 expert visitors from around the world May 11-13, offering new ideas and to improve their manufacturing practice – in the Chiron spirit of “Performance meets Precision.”

FEATURE ARTICLES | 2022-05-19

The Numbers Game

Tool-X is a nanofluid that changes the characteristics of existing metalworking fluids by ‘manipulating’ speeds, feeds and metal removal rates using nanotechnology. The science behind Tool-X can potentially change metal cutting dynamics, improve surface finishes and extend tool life. The backstory of this technology is just as fascinating as its production results.

INDUSTRY NEWS | 2022-05-06

Ransohoff Offers LeanDrum Parts Washer

The Ransohoff LeanDrum platform provides a low cost, energy efficient, reliable solution for your high-volume cleaning application.

INDUSTRY NEWS | 2022-04-26

Solar Atmospheres Retains SHARP Accreditation

Solar Atmospheres of Western PA (SAWPA) was recently awarded three years merit status for SHARP Accreditation. The Safety and Health Achievement Recognition Program (SHARP) is designed to recognize employees and employers for their effort in establishing and maintaining all elements of an effective safety and health program.

INDUSTRY NEWS | 2022-04-21

Mazak and Sandvik Host Aerospace Event

Mazak’s new INTEGREX i-H series platform with SmoothAi CNC and the VARIAXIS i-700T with turning capability will be on-hand at the Experience Tech Aerospace Event co-hosted by Mazak at Sandvik Coromant Center in Mebane, NC (May 11-12, 2022).

INDUSTRY NEWS | 2021-12-27

Velo3D Ships First Sapphire XC to Aerospace Customer

Velo3D, Inc. has announced its first Sapphire XC delivery. The Sapphire XC, or “Extra Capacity,” is the company’s newes...
INDUSTRY NEWS | 2021-11-09

ECM NANO Lands in North American Aerospace Market

ECM USA Director of Sales, Bill Gornicki, recently announced the purchase of a NANO system for deployment into the North American aerospa...
INDUSTRY NEWS | 2021-11-01

Lucifer Furnaces Offers Pot Furnaces for Aerospace Applications

Lucifer Furnaces, Warrington PA, has designed a multi-unit modular Pot Furnace system for a major aerospace manufacturer in the US. The e...
INDUSTRY NEWS | 2021-06-21

Guill Tool Offers Machining and Fabricating Manufacturing Services for Aerospace

For over 55 years, Guill Tool has been providing tooling for the aerospace, extrusion, medical, consumer and commercial, defense, wind, o...
INDUSTRY NEWS | 2021-06-10

Kennametal Introduces Drilling and Countersinking System for Aerospace Fastener Holes

Kennametal has introduced the HiPACS drilling and countersinking system for aerospace fastener holes. Designed to drill and chamfer holes...
INDUSTRY NEWS | 2021-05-06

NASA's Lubrication-Free Precision Gear Technology Brought to Earth

Bulk Metallic Glass (BMG) is the next generation of alloys for precision gears. In this webinar, Amorphology provides a rare glimpse into the specialized world of BMG (aka amorphous metal) development for terrestrial applications - focusing on precision gears and complex metal components.
INDUSTRY NEWS | 2021-04-13

Kennametal Introduces FBX Drill for Aerospace Machining

Kennametal has introduced the FBX drill for flat-bottom drilling of structural aerospace parts. The patented FBX drill delivers superior ...
INDUSTRY NEWS | 2021-01-04

Seco Assists with Common Aerospace Challenges

In order to help work through both common and unique challenges, Seco Tools has an aerospace task force made up of aerospace specialists ...
INDUSTRY NEWS | 2020-09-24

Solar Atmospheres Achieves Preferred Aerospace Supplier Status

Solar Atmospheres of Western Pennsylvania (SAWPA) recently participated in a Boeing Supplier Assessment. The on-site, preventative engage...
INDUSTRY NEWS | 2020-07-06

Master Fluid Solutions Launches HyperSol 888NXT for Aerospace Applications

Global leader in metalworking fluids, Master Fluid Solutions, has launched a new product tailored to the unique and complex needs of the ...
INDUSTRY NEWS | 2020-06-23

Seco/Warwick Delivers Two Vector Vacuum Furnaces for Aerospace Application

Seco/Warwick Group has sold 2 vacuum furnaces for an aerospace application to one client in two locations: the USA and Singapore. The Gro...
FEATURE ARTICLES | 2020-03-01

Documentation: A Challenge in Making Aerospace Gears

For years, Reliance Gear Corp. has manufactured gears for the aerospace industry. Located in Elmhurst, IL, Reliance has served as a Tier 2 or Tier 3 supplier. (Tier 1 suppliers work directly with the aerospace primes, the Boeings and Embraers of the world.) Like many gear shops, Reliance is certified under quality management standard ISO 9001. And its aerospace customers were satisfied with that certification. Until two years ago.
INDUSTRY NEWS | 2019-11-07

Kennametal Offers KOR 5 for Aluminum Roughing for Aerospace Applications

Kennametal has recently introduced the KOR 5 solid carbide end mill for aluminum roughing for aerospace applications. It is designed for ...
GEAR TALK WITH CHUCK | 2019-09-12

Where Did All the Dealmakers Go?

An old business associate called the other day with a training request. To the best of my knowledge, he’s among the last “manufacturer’s representa...
GEAR TALK WITH CHUCK | 2019-07-25

Gear Origins: Reinventing the Family Business

Sometimes the old family recipe needs updating… My husband’...
TECHNICAL ARTICLES | 2019-06-01

Oil-Off Characterization Method Using In-Situ Friction Measurement for Gears Operating Under Loss-of-Lubrication Conditions

The oil-off (also known as loss-of-lubrication or oil-out) performance evaluation of gears is of significant interest to the Department of Defense and various rotorcraft manufacturers, so that the aircraft can safely land in an accidental loss-of-lubricant situation. However, unlike typical gear failure modes such as pitting or bending fatigue where early detection is possible, gear failure in an oil-off situation is very rapid and likely catastrophic. Failures rapidly result in the loss of torque transmission and the inability to control the aircraft.
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...
GEAR TALK WITH CHUCK | 2019-05-09

My Story – Bob Handschuh

Most of us only think of NASA with regard to the “S” [Space] in its acronym. The first “A” [Aerospace] is just as important to its mission of s...
INDUSTRY NEWS | 2019-03-29

EMAG Offers ECM Technology to Aerospace Market

There is one important correlation to be found in the manufacture of aero engines: the higher the temperatures generated by the engine, t...
GEAR TALK WITH CHUCK | 2019-03-19

Six Degrees of Gears ...

Our next “origin story” author is another consulting en...
GEAR TALK WITH CHUCK | 2019-03-14

My Career in Gears: Ray Drago

When I was in high school (Manual Training High School in Brooklyn, NY) I had a general science teacher, Mrs. Gaudiello, who recognized something i...
GEAR TALK WITH CHUCK | 2018-09-20

Frequently Asked Questions

Backlash “adju...
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 | 2018-06-28

Suns and Planets

The first planetary drive I helped take apart had three stages of through hardened spur gears encased in a simple cast iron tube with plates on both ends. Both input and output shafts rotated on taper roller bearings, but everything else had simple bronze bushings.
INDUSTRY NEWS | 2018-02-12

IIoT Spotlight: The Job Shop

As IIoT solutions become more readily available throughout the manufacturing sector, challenges continue when you start looking specifically at the...
GEAR TALK WITH CHUCK | 2018-01-23

The First Step is Easy

When I started writing my gear book back in 1986, the mission was to provide enough information for a person new to the gear trade to tell if someo...
GEAR TALK WITH CHUCK | 2017-09-28

Is There a Future in Gears?

I have several vivid memories of my first week as an apprentice back in 1971. One was the shock of getting a printout from Human Resources in my fi...
GEAR TALK WITH CHUCK | 2017-06-23

A Calling, Not a Job

In driving around my new hometown, I am struck by the grandeur of some of the older homes and buildings. Oil City, Pennsylvania was once home to gi...
INDUSTRY NEWS | 2017-06-13

Mastercam 2018 Focuses on Efficiency and Speed

Mastercam 2018 was recently introduced at EASTEC where attendees were impressed with the tools the software has available to get parts off...
INDUSTRY NEWS | 2017-03-01

Mecof Powermill Machining Center Offers Ideal Solution for Aerospace and Large Workpiece Handling

The large Powermill machining center from Mecof, part of EMCO Group, provides users precision, high dynamics, operational flexibility and...
GEAR TALK WITH CHUCK | 2017-02-23

Operator Error

The backlash discussion posted previously was inspired by the comments posted on a hobby website I frequent. The commentator was of the opinion tha...
INDUSTRY NEWS | 2017-01-20

LMI Aerospace Appoints Jay Inman President of Engineering Services, Keith Schrader Vice President of Operations

LMI Aerospace Inc. has appointed Jay Inman as president of engineering services, a role he had been serving on an interim basis since Sep...
FEATURE ARTICLES | 2017-01-01

Oil-Out Endurance Under the Lens

Oil-out conditions, or conditions in which an aircraft is operating without any oil in its gearbox or transmission, are devastating for an aircraft's hardware. Even the sturdiest gears usually can't last 30 minutes under such conditions before they catastrophically fail, and the whole system usually follows shortly after. That doesn't leave pilots with a whole lot of time to find a suitable location to land in the case of an oil-out emergency.
INDUSTRY NEWS | 2017-01-01

Industry News

News from around the Gear Industry
GEAR TALK WITH CHUCK | 2016-11-29

Specialization vs. Adaptability

Darwin posited that life on earth evolved to make the most of its environment. Too much competition for low hanging leaves, he concluded, prompted ...
INDUSTRY NEWS | 2016-10-18

Two Problems, Two Machines, Two Solutions

Delta’s Investment in New Mitsubishi Equipment Adds Capacity, Reduces Cycle Time Dwight Smith, Vice President, Mitsubishi Hea...
GEAR TALK WITH CHUCK | 2016-05-31

Animal Trouble

Although the official astrological start to summer in the northern hemisphere is still three weeks away, the Memorial Day weekend just concluded ma...
FEATURE ARTICLES | 2016-03-01

Plastic Gearing Continues Converting the Unconverted

Plastic gears are everywhere today - throughout your car, at the oceans' lowest depths, in deep space. The question, when is a metal gear a candidate for plastic conversion, can be addressed in three words, i.e. what's the application?
TECHNICAL ARTICLES | 2015-07-01

I Like Big Gears and I Cannot Lie!

Many years ago, when asked how the five-meter gear was checked, the quality manager responded, “When they’re that big, they’re never bad!” That may have been the attitude and practice in the past, but it no longer serves the manufacturer nor the customer. Requirements have been evolving steadily, requiring gears to perform better and last longer.
GEAR TALK WITH CHUCK | 2015-06-30

Echoes of My Past

GEAR TALK WITH CHUCK | 2015-05-28

Formula 1 Gearbox Designs

As mentioned in my last blog, Formula 1 gearboxes are now highly integrated into the overall car design. The days of a “spec” transmission from a t...
GEAR TALK WITH CHUCK | 2015-05-26

Short Lived Gearbox Designs

“All memorable quotations referring to gearboxes involve expletives.” Peter Wright             The author of Fo...

INDUSTRY NEWS | 2014-09-23

GF Machining Unveils Aerospace EDM

GF Machining Solutions debuted its new Cut 200 Dedicated wire electrical discharge machine (EDM) for aerospace work at IMTS in Chicago. T...
GEAR TALK WITH CHUCK | 2014-08-14

The Problem of Certainty

[starbox] In writing about unforeseen consequences there is a risk of inspiring such conservatism in design that the resulting product is no lon...
INDUSTRY NEWS | 2014-02-14

5ME Delivers Machining Fluids for Aerospace and Heavy Equipment

5ME's Cyclo Cool 900 series synthetic metal machining fluids utilize a unique, near-neutral pH formula developed to meet heavy-duty, ...
GEAR TALK WITH CHUCK | 2014-02-05

Practical Magic

[starbox] Today I have t
INDUSTRY NEWS | 2014-01-08

QuesTek Gets Second Alloy Approved for Aerospace Applications

QuesTek Innovations LLC is pleased to announce that its ultra high-strength, high-toughness Ferrium M54TM steel has been approved for inc...
TECHNICAL ARTICLES | 2013-08-01

An Experimental Investigation of Aerospace-Quality Gears Operating in Loss-of-Lubrication Condition

This work establishes a baseline for aerospace spur gear behavior under oil-off conditions. The collected test results document a different oil-off time, dictated by material used.
PUBLISHER'S PAGE | 2013-06-01

Boom or Bust - Are You in the Right Markets

Over the past few months we've talked with a lot of gear manufacturers. Many of them tell us business is strong, while others are struggling with reduced demand. The difference between them isn't so much in the quality of their manufacturing operations, but rather trends in the end markets they serve.
INDUSTRY NEWS | 2013-03-07

Mazak Targets Aerospace and Medical Manufacturing Technology

In support of the growing aerospace and medical industries, Mazak Corporation is hosting a Discover More With Mazak event at its Northeas...
INDUSTRY NEWS | 2012-12-21

Micro Precision Joins Aerospace Supply Chain Program

In line with its policy of continually improving all aspects of its operations, Hemel Hempstead based Micro Precision has signed up to th...
ADDENDUM | 2011-11-01

It's No American Dream: Pratt & Whitney GTF Engine Now a Reality...

In the August 2008 issue of Gear Technology, we ran a story (“Gearbox Speed Reducer Helps Fan Technology for ‘Greener” Jet Fuel Efficiency’) on the then ongoing, extremely challenging and protracted development of Pratt & Whitney’s geared turbofan (GTF) jet engine.
FEATURE ARTICLES | 2011-09-01

Next Stop Cincinnati

What's not to like about a more focused, user-friendly Gear Expo? Booth Previews.
TECHNICAL ARTICLES | 2011-06-01

Analysis and Testing of Gears with Asymmetric Involute Tooth Form and Optimized Fillet Form for Potential Application in Helicopter Main Drives

Gears with an asymmetric involute gear tooth form were analyzed to determine their bending and contact stresses relative to symmetric involute gear tooth designs, which are representative of helicopter main-drive gears.
PRODUCT NEWS | 2010-07-01

Improved Inspection Software Helps Provide Optimum Cutting Results

Klingelnberg measuring centers eliminate trial-and-error with modern analysis tools.
FEATURE ARTICLES | 2010-01-01

Sizing Up Big Gears

Quality, materials and technology continue to challenge the big gear manufacturing market.
ADDENDUM | 2009-11-01

Reassembling Gear Drive History

Getting rid of personal mementos is an arduous housekeeping ritual for some of us; every last gear has a memory. One man’s trash is another man’s gold, after all, or in some cases, one failed business is a forgotten piece of personal and mechanical genealogy. Such is the case of the Hill-Climber chainless bicycle, the remains of which were pulled from a family junk pile after nearly half a century.
FEATURE ARTICLES | 2009-06-01

High-Tech Risks and Rewards

Aerospace/Defense contracts offer unique challenges for gear manufacturers.
FEATURE ARTICLES | 2009-06-01

Aerospace Gearing Research - An Update

A look at several American organizations doing cutting edge gear-related research for aerospace applications.
TECHNICAL ARTICLES | 2009-05-01

Repair via Isotropic Superfinishing of Aircraft Transmission Gears

The objective of this paper is to demonstrate that transmission gears of rotary-wing aircraft, which are typically scrapped due to minor foreign object damage (FOD) and grey staining, can be repaired and re-used with signifi cant cost avoidance. The isotropic superfinishing (ISF) process is used to repair the gear by removing surface damage. It has been demonstrated in this project that this surface damage can be removed while maintaining OEM specifications on gear size, geometry and metallurgy. Further, scrap CH-46 mix box spur pinions, repaired by the ISF process, were subjected to gear tooth strength and durability testing, and their performance compared with or exceeded that of new spur pinions procured from an approved Navy vendor. This clearly demonstrates the feasibility of the repair and re-use of precision transmission gears.
TECHNICAL ARTICLES | 2009-01-01

Gear Failure Analysis Involving Grinding Burn

When gears are case-hardened, it is known that some growth and redistribution of stresses that result in geometric distortion will occur. Aerospace gears require post case-hardening grinding of the gear teeth to achieve necessary accuracy. Tempering of the case-hardened surface, commonly known as grinding burn, occurs in the manufacturing process when control of the heat generation at the surface is lost.
EVENTS | 2008-11-01

Events

The complete Events section from the November/December 2008 issue of Gear Technology
FEATURE ARTICLES | 2008-08-01

Gearbox Speed Reducer Helps Fan Technology for "Greener" Jet Fuel Efficiency

Today’s ever-evolving global economic engine is, in many ways, a wonderful phenomenon; you know—a rising-tide-lifting-all-boats, trickle-down-theory-of-economics dynamic at work.
INDUSTRY NEWS | 2007-05-24

Northstar Aerospace Announces Executive Appointments to Accelerate Manufacturing Ramp-Up

Northstar Aerospace announced several executive management changes in accordance with the company's plans to drastically accelerate i...
TECHNICAL ARTICLES | 2007-05-01

Thermal Behavior of Helical Gears

An experimental effort has been conducted on an aerospace-quality helical gear train to investigate the thermal behavior of the gear system as many important operational conditions were varied.
INDUSTRY NEWS | 2006-04-27

Northstar Aerospace and Rolls Royce Sign Long Term Agreement

Northstar Aeropsace was awarded a seven-year contract by Rolls-Royce Corp. to provide machining for gearboxes and related parts used in c...
INDUSTRY NEWS | 2006-04-22

Cloyes Gear Acquired by KPS Funds

KPS Special Situations Funds announced their acquisition of Cloyes Gear and Products. Financial terms of the agreement were not disclo...
INDUSTRY NEWS | 2006-04-14

Northstar Aerospace Reports Increased Revenue

Northstar Aerospace reported revenue totaling $36.8 million for the three months ending June 30, 2006, an increase of $3.6 million when c...
FEATURE ARTICLES | 2006-03-01

Blue Skies for Aerospace Parts Manufacturing

Aerospace manufacturing has seen quite a turnaround in the past few years. The world's manufacturers of airplanes, helicopters, missiles, space vehicles and satellites are all extremely busy right now--and that's keeping quite a few gear manufacturers busy as well.
INDUSTRY NEWS | 2006-02-06

HD Systems Merges with Harmonic Drive Technologies

HD Systems Inc. and Harmonic Drive Technologies, Nabtesco Inc. have merged, effective Jan. 1, 2006. The newly formed joint companny wi...
INDUSTRY NEWS | 2005-04-13

Bonfiglioli Acquires Tecnoingranaggi

Bonfiglioli acquired Tecnoingranaggi, a Bologna-based supplier of planetary gear units. According to the company's press release, ...
INDUSTRY NEWS | 2005-02-26

Thornycroft Acquires Newage Transmissions

Thornycraft Ltd., an automotive and off-highway equipment company, has acquired Newage Transmissions Ltd. Effective immediatly, Newage...
TECHNICAL ARTICLES | 2004-03-01

Hobbing Precise, Uniform End Chamfers

The seemingly simple process of placing a uniform chamfer on the face ends of spur and helical gears, at least for the aerospace industry, has never been a satisfactory or cost effective process.
TECHNICAL ARTICLES | 2002-07-01

Minimization of In-Process Corrosion of Aerospace Gears

Carbon steels have primarily been used to manufacture aerospace gears due to the steels' mechanical characteristics. An alloyed low carbon steel is easily case-hardened to obtain a hard wear surface while maintaining the ductile core characteristics. The microstructure achieved will accept the heavy loading, shocks, and elevated temperatures that gears typically experience in applications. The carbon steel machinability allows for general machining practices to be employed when producing aerospace gears versus the more advanced metal removal processes required by stainless and nickel-based alloys.
TECHNICAL ARTICLES | 2000-03-01

Reducing Production Costs in Cylindrical Gear Hobbing and Shaping

Increased productivity in roughing operations for gear cutting depends mainly on lower production costs in the hobbing process. In addition, certain gears can be manufactured by shaping, which also needs to be taken into account in the search for a more cost-effective form of production.
TECHNICAL ARTICLES | 1999-01-01

Selection of the Optimal Parameters of the Rack-Tool to Ensure the Maximum Gear Tooth Profile Accuracy

An analysis of possibilities for the selection of tool geometry parameters was made in order to reduce tooth profile errors during the grinding of gears by different methods. The selection of parameters was based on the analysis of he grid diagram of a gear and a rack. Some formulas and graphs are presented for the selection of the pressure angle, module and addendum of the rack-tool. The results from the grinding experimental gears confirm the theoretical analysis.
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.
FEATURE ARTICLES | 1997-09-01

Who's Who and What's What At Gear Expo '97

Below are listed the Gear Technology advertisers exhibiting at Gear Expo 97.
TECHNICAL ARTICLES | 1996-09-01

Tooth Modification and Spur Gear Tooth Strain

A major source of helicopter cabin noise (which has been measured at over 100 decibels sound pressure level) is the gear box. Reduction of this noise is a NASA and U.S. Army goal.
PUBLISHER'S PAGE | 1996-07-01

geartechnology.com And Other Adventures

You've been reading about it, talking about it, maybe even trying it. Gear Technology has jumped aboard it feet first and begun a voyage on the World Wide Web. Beginning with this issue, an electronic version of the magazine will be online. For those of us who still find the fax machine amazing technology, this is a great leap.
PUBLISHER'S PAGE | 1993-07-01

Gear Expo '93 - A Wise Investment

Gear Expo '93 - another trade show, another plea to send people and/or equipment out of town, away from the office or plant. Another bid to spend time, money, and effort. Oh, please! Hasn't anybody heard that these are the "lean and mean" '90s?
TECHNICAL ARTICLES | 1992-01-01

Design Guidelines for High-Capacity Bevel Gear Systems

The design of any gearing system is a difficult, multifaceted process. When the system includes bevel gearing, the process is further complicated by the complex nature of the bevel gears themselves. In most cases, the design is based on an evaluation of the ratio required for the gear set, the overall envelope geometry, and the calculation of bending and contact stresses for the gear set to determine its load capacity. There are, however, a great many other parameters which must be addressed if the resultant gear system is to be truly optimum. A considerable body of data related to the optimal design of bevel gears has been developed by the aerospace gear design community in general and by the helicopter community in particular. This article provides a summary of just a few design guidelines based on these data in an effort to provide some guidance in the design of bevel gearing so that maximum capacity may be obtained. The following factors, which may not normally be considered in the usual design practice, are presented and discussed in outline form: Integrated gear/shaft/bearing systems Effects of rim thickness on gear tooth stresses Resonant response
TECHNICAL ARTICLES | 1991-05-01

Surface Pitting Fatigue Life of Noninvolute Low-Contact-Ratio Gears

Spur gear endurance tests were conducted to investigate the surface pitting fatigue life of noninvolute gears with low numbers of teeth and low contact ratios for the use in advanced application. The results were compared with those for a standard involute design with a low number of teeth. The gear pitch diameter was 8.89 cm (3.50 in.) with 12 teeth on both gear designs. Test conditions were an oil inlet temperature of 320 K (116 degrees F), a maximum Hertz stress of 1.49 GPa (216 ksi), and a speed of 10,000 rpm. The following results were obtained: The noninvolute gear had a surface pitting fatigue life approximately 1.6 times that of the standard involute gear of a similar design. The surface pitting fatigue life of the 3.43-pitch AISI 8620 noninvolute gear was approximately equal to the surface pitting fatigue life of an 8-pitch, 28-tooth AISI 9310 gear at the same load, but at a considerably higher maximum Hertz stress.
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.
EVENTS | 1989-01-01

Technical Calendar

March 19-22, 1989. First International Applied Mechanical Systems Design Conference. Convention Center, Nashville, TN. April 25-27, 1989. ASME 5th Annual Power Transmission & Gearing Conference, Chicago, IL
TECHNICAL ARTICLES | 1988-09-01

Crowned Spur Gears: Optimal Geometry and Generation

Involute spur gears are very sensitive to gear misalignment. Misalignment will cause the shift of the bearing contact toward the edge of the gear tooth surfaces and transmission errors that increase gear noise. Many efforts have been made to improve the bearing contact of misaligned spur gears by crowning the pinion tooth surface. Wildhaber(1) had proposed various methods of crowning that can be achieved in the process of gear generation. Maag engineers have used crowning for making longitudinal corrections (Fig. 1a); modifying involute tooth profile uniformly across the face width (Fig. 1b); combining these two functions in Fig. 1c and performing topological modification (Fig. 1d) that can provide any deviation of the crowned tooth surface from a regular involute surface. (2)
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