Q&A with Rich Piselli
Remind our readers of Piselli Enterprises’ role in the
gear-manufacturing industry.
We have over 30 years of experience buying and selling used gear equipment. I was...
Making gears takes more than good design
It’s a given that “materials matter” when it comes to gear design. But “materials” can be more than just the raw components. Our team...
Benefits of liquid penetrant inspection
Dye penetrant inspection is one of the most widely used non-destructive inspection techniques used. It is useful for a wide variety of product applications...
Heat treating carbon and alloy steels
When considering a material for a gear design, the most significant decision is the ease of machinability vs. the durability of the material. Most...
Q&A with KC Warren
What is Machine Tool Builders’ role in the gear industry?
For nearly 30 years, Machine Tool Builders Inc (MTB) has been a leading provider of...
Are your gears compliant?
The concept of clean living has been around for a long time, but it wasn’t until recently that it became the movement that it...
Q&A with Marc Strandquist
What did you see coming that helped you map out the future of Optimas Solutions Americas’ market?
There were a lot of unfinished projects, but...
Introduction to nondestructive testing
Nondestructive testing (NDT) is an interdisciplinary science that uses many different methods to evaluate the properties of metals, parts, or assemblies without causing damage...
Fracture mechanics and fatigue crack growth
In the last article, we talked about fracture mechanics, and the method of fracture toughness testing using fracture mechanics. In this article, we are...
Q&A with Daniel Weis
How long have you been with Neugart and what are your responsibilities?
I started my career with Neugart in 2005 as a young mechanic apprentice...
What, precisely, is my gear made of?
The building blocks for all materials are microstructures known as atoms. Whether the material in question is a plastic, a metal, or even your...
Mechanical paste polishing vs. CAVF finishing of gears
A recent Materials Matter article compared generic deburring versus CAVF (chemically accelerated vibratory finishing.) Both techniques are conducted in a vibratory unit. The main advantage of...
Precision gearing: Accuracy and tolerances
When I was a child, one of the great joys of going on the family vacation was to pull out a paper map and...
Back to basics – Fracture toughness testing
In previous articles, we have discussed the many different types of mechanical testing methods and requirements. While some of the test methods have application...
Q&A with Stephen Korosec
What does the Koro Sharpening Service offer the gear industry, and how long have you been in business?
We sharpen only gear cutting tools. Most...
Determining tooth thickness of various gear types – Part III
In order to determine the tooth size of a gear after taking into account the backlash allowance, you first must determine what the nominal...
Back to basics – Toughness testing of material
In the last series of articles, we discussed hardness testing and tensile testing. In these applications, the loading is a static load over a...
The challenges of generic deburring vs. CAVF deburring
Relative to gear hobbing, shaving, and/or post heat-treat grinding to generate accurate tooth morphology there may come a time wherein vibratory deburring is a...
Q&A with Aaron-Michael Eller
What’s a typical day like for you at Seco Tools?
It’s a little bit different now since the Coronavirus hit. We all have a little...
Changes ahead in the roughness standards
I have written numerous articles on tooth flank surface roughness measurement. This is such a page-turner of a subject! Actually, I was thinking I...
