Non-martensitic transformation products: Bainite
In this column, I will discuss the non-martensitic transformation product called bainite.
Introduction
The decomposition of austenite, when occurring at a fast enough rate to exceed...
An overview of heat treatment techniques
Editor’s note > This is the second in a five-part series.
In this second segment of my series on heat-treating techniques, I will discuss the...
Q&A with Mats Wennmo
Mats Wennmo has been the global manager for Automotive Transmission Gear Solutions at Sandvik Coromant since 2017. He got his start in the industry...
An overview of heat treatment techniques
Editor’s note > This is the first in a five-part series.
I recently had the wondrous experience of being invited to tour a very modern state-of-the-art heat-treatment...
Residual stresses from machining
In this column, we will discuss the sources of distortion and residual stresses from machining operations. The problem of residual stresses and distortion is...
What is the proper term for my toothed wheel
Over the river and through the woods to Grandmother’s house we go.
This snippet from a holiday classic details how we will travel any...
Pack carburizing of steels
Pack carburizing is a very old method of carburizing steel, but it is still practiced in many tool rooms and machine shops. It is...
A little deeper look at epicyclic gear trains
As we know, epicyclic gear trains are very versatile and compact. They have multiple configurations, able to give you as many as seven ratios...
Q&A with Jens Beck
What are some ways you see artificial intelligence of things (AIoT) disrupting the manufacturing space? What are some emerging opportunities for the technology in...
Are my gears properly centered?
As we settle into the autumn weather, the changing of the seasons brings a sense of calm. The leaves change color, pumpkin spice is...
Tackling EV noise reduction
Electric vehicles and plug-in hybrids are becoming a larger segment of the vehicles on the road every year, and with government incentives to purchasers...
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...
