Saturday, November 17, 2018

Materials Matter

Powder Metal Gears, Part VII

So far, five powder metal gear related topics have been covered: effects of porosity, noise and NVH, micro design and robustness, macro design and...

Powder Metal Gears, Part VI

The heat treatment issue discussed in previous columns remains for the rollforming as well; low-pressure carburization helps, due to a better process when introducing...

Powder Metal Gears, Part V

So far we covered porosity of powder metal and some of its effects: Noise and NVH, macro design and reduced weight, and micro design...

Powder Metal Gears, Part IV

In the previous article, the micro design, in the sense of profile modifications to the teeth, was discussed. This fourth article will deal with...

Powder Metal Gears, Part III

Since the Young’s modulus and Poisson’s number are density-related, it is important to use the PM relevant numbers in the design phase of the...

Powder Metal Gears, Part II

NVH is one of the most difficult areas of gearing approaching black art. Transmission developers have their own standards for testing. Often subjective measurements...

Powder Metal Gears, Part I

This will be the first in a series of smaller articles on Powder metal gear technology. Each article will focus around a topic that...
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