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Chamfering and deburring have been described as "unloved," a "necessary evil" and, in fact - "dead." After all, manual deburring is still common in many shops.
The author conducts a simple experiment to verify his anecdotal knowledge about chamfering hard vs soft parts.
As you might imagine, I talk to many gear industry people through the course of my day-to-day activities. And there is one question that I hear over and over again. "Joe, we need an experienced gear process engineer. Do you know anyone who's available?"
Business is finally starting to get back to usual in the big gear world, which offers us a chance to look back at the greatest lesson on how to survive an economic downturn. Includes the sidebar: "Brass Tacks with Klingelnberg."
The latest technology on display in Columbus, OH. October 24-26.
RCD Engineering's switch from manual to CNC hobbing operations breaks gear manufacturing lead time records with Bourn & Koch 100H in their gear production pit crew.
For over 50 years, the Do Nothing Machine has entertained the public eye with its complex machinery, a mountain of over 700 gears put together for the express purpose of doing nothing.
Let's talk about large gears. Not the size or scope or inspection process, but the forecast and market potential in areas that utilize these massive components. We'll examine key industry segments like energy and mining and tap IHS Economics for a forecast for 2016 and 2017 (spoiler alert: it's not great). Additionally, we'll discuss some of the critical factors influencing global big gear manufacturers Ferry-Capitain and Hofmann Engineering.
News about recent products
We are currently experiencing wear on the bull gear on our converter at the steel plant. We want to be able to draw the original gear profile to compare this with the worn tooth before we decide on the next steps. I have attempted this, but there is a correction factor given and I am unsure how to apply this. Could someone give advice on this? Please find attached the PDFâ€™s for the bull gear and the pinion gear. They are old drawings! The wear is on the wheel.
It's not easy being big. Maybe that's not exactly how the phrase goes, but it's applicable, particularly when discussing the quality requirements of large gears. The size alone promises unique engineering challenges. BONUS Online Exclusive: Big or Small - Inspection is Key to Success.
The complete Industry News section from the October 2013 issue of Gear Technology.
Like many of you in the gear industry, weâ€™ve been working extremely hard over the past few months getting ready for Gear Expo 2013, which takes place September 17-19 in Indianapolis.
Our experts comment on reverse engineering herringbone gears and contact pattern optimization.
Industry battles it out for World's Largest Gear title.
Dear Editor: In Mr. Yefim Kotlyar's article "Reverse Engineering" in the July/August issue, I found an error in the formula used to calculate the ACL = Actual lead from the ASL = Assumed lead.
Whether gear engineers have to replace an old gear which is worn out, find out what a gear's geometry is after heat treatment distortion, or just find out parameters of gears made by a competitor, sometimes they are challenged with a need to determine the geometry of unknown gears. Depending on the degree of accuracy required, a variety of techniques are available for determining the accuracy of an unknown gear. If a high degree of precision is important, a gear inspection device has to be used to verify the results. Frequently, several trial-and-error attempts are made before the results reach the degree of precision required.
Rules and Formula for Gear Sizes
Below are listed a variety of commonly used constants arranged numerically to permit ease of reference. Wherever an asterisk (*) is shown, the constant is exact as given, it being generally a mathematical constant or one fixed by definition. In cases where the first constant listed is followed by another in parenthesis, the first is the round number generally used, while the second is the more exact value.
Industry News from October/November 1984 Gear Technology.
Charles Schultz of Brad Foote Gear Works discusses some of the finer points of engineering tolerances--and muscle cars.
Big gears and wind turbines go together like bees and honey, peas and carrots, bread and butter andâ€”well, you get the idea. Wind isnâ€™t just big right now, itâ€™s huge. The wind industry means tremendous things for the energy dependent world we live in and especially big things for gear manufacturers and other beleaguered American industries.
Aerospace/Defense contracts offer unique challenges for gear manufacturers.
Most books related to the gear industry are more about the business side or the technical aspects of what we do.
News from the Gear Industry
The gear industry lost one of its iconic figures in July when James Cervinka passed away at the age of 92. Jim was CEO and one of the founders of Arrow Gear. For 65 years, he was a gear man, and I canâ€™t help but feeling that his absence shrinks the gear industry by far more than the loss of just one man.
"If it ain't broke, don't fix it," goes the hoary bromide. But what if the time comes - and it most surely will - that in fact it is broke? Do you fix it or replace it? And when does gearbox maintenance and repair arrive at a point of diminishing returns and buying new is the answer?