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For over 50 years, grinding has been an accepted method of choice for improving the quality of gears and other parts by correcting heat treat distortions. Gears with quality levels better than AGMA 10-11 or DIN 6-7 are hard finished, usually by grinding. Other applications for grinding include, but are not limited to, internal/external and spur/helical gear and spline forms, radius forms, threads and serrations, compressor rotors, gerotors, ball screw tracks, worms, linear ball tracks, rotary pistons, vane pump rotators, vane slots, and pump spindles.
Itâ€™s getting complicated. First it was the Amazon packages dropping into the backyard via an unmanned vehicle. This was followed by numerous companies working on autonomous vehicles for buses, taxis and even two-seater air shuttles. Now, a prototype unmanned aerial tanker refueled a F/A-18F Super Hornet fighter jet in early June. Thatâ€™s rightâ€”a drone just refueled a fighter jet in mid-air.
Gear-related new technology from Helios, Chiron, C-B Gear & Machine, Marposs, Dillon Manufacturing, Schunk, Forest City Gear and more.
The complete Industry News section from the September/October 2020 issue of Gear Technology.
An experimental validation of improvements possible with the latest threaded wheel grinding technology.
We asked a few industry suppliers to provide some insight into gear manufacturers' supply chain challenges during the pandemic.
uncertainty is still an everyday experience. Given the wealth of sometimes confusing and contradictory information we are spoon fed by Washington, we are left to our own devices to decipher announcements, e.g. â€” Do I wear a mask or not wear a mask? Do I still need to practice social distancing (a classic oxymoron: what is sociable about keeping distances between each other)? And so on.
An economical modernization program gives Designatronics' tried-and-true Gleason No. 102 Coniflex generators a new lease on life for fast, reliable production of smaller precision straight bevel gears.
John Harrison (1693Ã¢â‚¬â€œ1776) - a British clockmaker (and carpenter) whose extremely precise chronometer enabled seafarers to calculate longitude (also known as east-west axis) with a degree of accuracy that until then was unheard of.
As the Indianapolis 500 begins its second hundred years, it is a good opportunity to recall the guy who put the gearbox "up front."
Cubitron II wheels are put to the test in this case study.
A road map is presented listing critical considerations and optimal use of materials and methods in the construction of large gears.
The lifetime of worm gears is usually delimited by the bronze-cast worm wheels. The following presents some optimized cast bronzes, which lead to a doubling of wear resistance.
Design Problem: Develop a gear drive for a pedal-powered water craft that will be easy to manufacture, use and maintain; that will be lightweight enough for the boat to be portable; and that will eliminate the environmental risk of lubricants leaking into the water.
Tom Every has a collection of gears that would rival many small warehouses.
Okay, so you want to make some high quality gears for your customers, and you want to make a profit for your company, but you don't want to make a mess of the environment. What can you do?
If someone were to tell you that he had a gear material that was stronger per pound than aluminum, as wear-resistant as steel, easier to machine than free-machining steel and capable of producing gears domestically for 20% less than those now cut from foreign made forgings, would you consider that material to be "high tech"? Probably. Well, throw out all the pre-conceived notions that you may have had about "high tech" materials. The high-performance material they didn't teach you about in school is austempered ductile iron (ADI).
Question: In the January/February issue of your magazine, we came across the term "electronic gearbox." We have seen this term used elsewhere as well. We understand that this EGB eliminates the change gear in the transmission line, but not how exactly this is done. Could you explain in more detail?
Not long ago, many manufacturing managers thought sensitivity to environmental protection standards meant additional expenses, decreased productivity, and a plethora of headaches and hassles.
One of the hot items on the public agenda these days is "The Environment." Suddenly everyone wants to save the whales and the rain forest. Politicians, rock stars, and big business have all discovered that you can't get anything but good press for saying that you're in favor of trees and marine mammals.
The manufacturing process to produce a gear essentially consist of: material selection, blank preshaping, tooth shaping, heat treatment, and final shaping. Only by carefully integrating of the various operations into a complete manufacturing system can an optimum gear be obtained. The final application of the gear will determine what strength characteristics will be required which subsequently determine the material and heat treatments.
This paper addresses Austempered Ductile Iron (ADI) as an emerging Itechnology and defines its challenge by describing the state-of-the-art of incumbent materials. The writing is more philosophical in nature than technical and is presented to establish a perspective.
Heat treatment industry reinforces environmental/energy conservation.
Environmentally friendly cutting fluids aren't just good for the environment. They can also be good for performance.
This paper presents the results of research directed at measuring the total stress in a pair of statically loaded and carburized spur gears. Measurements were made to examine the change in total stress as a function of externally applied load and depth below the surface.
Austempering heat treatments (austenitizing followed by rapid cooling to the tempering temperature) have been applied to nodular irons on an experimental basis for a number of years, but commercial interest in the process has only recently come to the surface.
Companies weigh in on green technology and sustainable efforts.
Companies around the world are learning to embrace the environment, and the gear industry is no exception. This special section takes a look at how some gear manufacturers are doing their part to conserve resources, preserve and protect the environment, and give back to the land. What weâ€™ve found is that adopting environmental measures is far more than just good corporate citizenship. For many gear industry companies, good environmental practices also turn out to be good for the bottom line.
Gear-related new technology from Klingelnberg, WFL, Junker, Schunk and more.
News Items About Ron Bullock
1 Ron Bullock: 1942-2016 (June 14, 2016)
It is with great sadness that we announce the passing of Bison Gear owner, chairman, mentor and friend, Ronald D. Bullock. Bullock's ... Read News