Nitriding of steels
In this column, we will discuss the nitriding of steels.
Nitriding introduces nitrogen into the surface of a steel at a lower temperature than carburizing....
Q&A with Scott Knoy
You recently returned from IMTS. What kind of reactions did you get from attendees visiting Nidec (formerly Mitsubishi Machine Tool Division)?
We saw many people...
Coordinate transformation and why it is important to gear measurement
Often, the results from different measurement systems must be combined to provide useful results in terms of our measurements. The coordinate transformation is used...
Stress relief is a key step in parts manufacturing
In this column, we will discuss the process of stress relief and compare it to the effects of annealing.
During the manufacturing process, residual...
Rotational vs. linear motion with gearing
Spur gear pairs, helical gear pairs, bevel gear pairs, and worm gear pairs all transfer rotary motion from one shaft to another. In the...
Q&A with Rodney Soenen
What’s a typical week like for you at Involute?
Generally, I travel every other week for a few days and one week in the...
Additive manufacturing and gears
The American Gear Manufacturers Association’s (AGMA) Emerging Technologies Committee (ETC) recently organized a show floor tour of the Rapid + TCT Exhibition (Rapid). The...
Q&A with George Abbascia
What’s a typical work week like for you at Gear Manufacturing Incorporated (GMI)?
Lately, it has been hectic as new projects have been steadily increasing....
Comparison of carburizing methods
In this column, we will discuss the different methods of carburizing, with a focus on resultant metallurgy.
Introduction
Carburizing is the addition of carbon to the...
Understanding worms and worm wheels
Worm gear pairs are a common gearing technology. They consist of two components, the first being the worm and the second being the worm...
Using profile shift in gearing
We all pretty much know that profile shifting is used to create gears with tooth thicknesses that are different from standard gears. By making...
Q&A with Andy Pettibone
Has Drewco always been a workholding company?
Yes. Drewco was started by Edward Drew in 1947. Ed started the company as a workholding design and...
Why is there pi in my gearing?
When I was growing up, there was a phrase that said, “It’s as American as baseball, hot dogs, apple pie, and Chevrolet.” The “it”...
Application of cryogenics to improve steel properties
In this column, we will discuss the application of cryogenically treating gears and the outcomes expected.
Introduction
There has been much discussion regarding the application of...
Load, speed, and torque
When I was a child, one piece of equipment that was found on every playground was the merry-go-round. It was a simple device consisting...
Measuring retained austenite
In this column, we will discuss the different methods of measuring the amount of retained austenite in a heat-treated steel sample.
Retained Austenite
Previously we...
Vibratory bowl media attrition: Part 2
In my previous article, I introduced you to the inefficiencies caused by the result of media attrition when vibratory processing gears. If you recall,...
Q&A with Michelle Maddox
Please tell me a little about your background.
B&R Machine and Gear Corporation is a small, family-owned manufacturing facility with a focus in replacement gearing....
Eliminating backlash in worm gear pairs
Gardening is a hobby enjoyed by many. The ability to transform a small piece of land into a beautiful landscape can be both cathartic...
Q&A with Tom Baldock
What you do at Guill Tool?
My responsibilities here are for sales in the aerospace area. I’ve been in sales most of my adult life,...
