The importance of anticipating heat-treatment problems in advance to avoid part failure due to...
Problems, and even failures, occurring from heat treatment are generally created by the stresses that are induced when phase transformations are taking place. During...
Chris Chlon: Buy Laws
Purchasing machinery and equipment presents many challenges to both the buyer and the seller. These include scope of work, specifications, drawings, timing, cost, run-off,...
Q&A with James Trombino
MPIF has an interesting history and structure, could you describe it?
I’d be glad to. The Metal Powder Industries Federation is truly a unique organization....
Terry McDonald: Site Safety
When you think about it, this country has always been a land of immigrants. Besides Native Americans, all of our family trees have roots...
Electric erosion can lead to failure in wind-turbine generators, with the expected catastrophic results
My installment of this column in the August 2007 issue of Gear Solutions was devoted to electric erosion and the possible solutions. In the...
Q&A with Rich Piselli
Thanks for the tour of your new facility. Watching the new Gould & Eberhardt machines being built was an impressive sight.
And well worth the...
Terry McDonald:Site Safety
There is an important safety subject that comes up so rarely that we tend to ignore it, or even to forget about it. This...
Gear-drive inspection reveals the effects of residual stresses on face contact in high-speed gear...
High-speed standards usually require verification of the mating accuracy, and that this record be maintained. This entails recording profile, lead, and pitch deviations. The...
Q&A with Robert O’Connor
Could you tell us a little about the company’s history?
Of course. The company was founded by Walter Schneeberger in 1923 to manufacture tool grinders...
Q&A with Robert Bruce
I understand that the STLE is celebrating its 65th anniversary this year. Could you tell us a little about the organization’s history, and your...
Terry McDonald: Site Safety
Well, now that we have a new presidential administration you have to wonder what it’s going to mean to us in the realm of...
Corrosion alone can lead to gear failure, but when you add fatigue loads and...
How many engineers know that corrosion is generally regarded as the prime cause of failures? In 1986 Batelle Labs estimated the annual cost at...
Chris Chlon: Buy Laws
Occasionally a really good idea comes up when working on a project. It might represent a faster cycle time, streamlined process, or a real...
Terry McDonald: Site Safety
All we hear on the radio, see on television, or read in the newspapers and on the Internet these days seems to be bad...
Determining the reasons for materials-based fatigue failures can be a challenge, but don’t underplay...
In the past 50 years, advances in gear technology have been driven by energy and aerospace, specifically by the gas turbine, jet engine, wind,...
Q&A with Suren Rao Ph.D.
Tell us about your academic background and what brought you to the Gear Research Institute at Penn State.
I was raised in India, and my...
Terry McDonald: Site Safety
I hope each and every one of you had a safe, joyous, and meaningful holiday season and were able to enjoy it with friends...
Proper balance is one of the critical keys in designing and manufacturing high-speed gear...
Unbalance is the most common cause of serious vibration in high-speed gear units. When present the vibration results in bearing, tooth, and seal damage....
Q&A with Ken Kiehl
I noticed that you’ve redesigned your Web site and changed the company name.
That’s right. Since our parent company is Cincinnati Steel Treating, we were...
Terry McDonald: Site Safety
I read an article recently discussing guns in the workplace. Now, I don’t know about you, but the very idea of such a thing...
