Articles by Sumin Zhu

friction testing
Quality 101

Why Perform Friction Tests

Combining versatile friction tests and surface texture measurements
Sumin Zhu
August 1, 2016

When material surfaces are in mechanical contact and slide against each other, complex microscopic interactions occur between the surfaces that lead to friction and wear.


Read More

Understanding Engineered Surfaces in Automotive

Tribometers and 3-D optical microscopes meet the demand for more stringent surface finish testing and measurement requirements.
Sumin Zhu
December 1, 2015

With concerns about greenhouse gas emissions and limited fossil fuels availability, U.S. government regulations, such as the Corporate Average Fuel Economy (CAFE), have been put in place since 1975 to regulate the fuel economy of cars and light trucks.


Read More

Stay in the know with Quality’s comprehensive coverage of
the manufacturing and metrology industries.

Newsletters | Website | eMagazine

JOIN TODAY!