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Industrial and Systems Engineering
Graduate Seminar Series
APPLICATIONS OF SURFACE METROLOGY IN DESIGN, MANUFACTURING,
AND MATERIALS - DIAMONDS, SKIS, and POTATO CHIPS
Christopher A. Brown, PhD, PE
Professor of Mechanical Engineering
Director Surface Metrology Laboratory & Haas Technical Education
Center
Worcester Polytechnic Institute, Worcester, MA
Date: Thursday, October 21, 2004
Time: 1:00 - 1:50 pm
Location: Xerox Auditorium, Building 9
Surface metrology is the measurement and analysis of surface textures.
The objective of surface metrology is to discover and apply functional
correlations with manufacturing processes, performance and material
properties. Surfaces cover everything and its texture, i.e., roughness,
or microgeometry, influence how it interacts. Properties like friction,
adhesion, abrasion and appearance, depend on the surface texture,
and processes like fracture leave evidence in the surface texture
can be understood through measurement and analysis. Fundamentals
of surface metrology will be reviewed and applications will be discussed.
Of particular interest is the application of principles from fractal
geometry to aid in the understanding of the chaotic nature of nearly
all surface textures at sufficiently fine scales. Scale-sensitive
fractal analysis, described in the new version of the US surface
texture standard (ASME/ANSI B46.1 2002, ch. 10) is applied to identifying
the key scales of interaction in differentiating grinds on ski bases
done for preparing for competition, brands of potato chips, adhesion,
and industrial diamonds.
Chris Brown came to WPI in 1989, where he founded and directs WPI's
Surface Metrology Lab (www.wpi.edu/+mfe/SurfMet) and WPI's Haas
Technical Educational Center for Computer-controlled Machining.
He teaches courses on surface metrology, design and analysis of
manufacturing processes, and the technology of alpine skiing. He
is an International Director of the Society of Manufacturing Engineers
(SME). He is a corresponding member of CIRP (International Instiution
for Production Engineering Research), chaired the subcommittee on
fractal methods for ASME/ANSI B46 Committee on Surface Texture,
and he has chaired the SME MTA (Machining Technology Association)
advisory board. His e-mail address is brown@wpi.edu.
Attendance is REQUIRED for students enrolled
in 0303-800 Graduate Seminar
Questions?
Contact Dr. Michael Kuhl at 475-2134 or mekeie@rit.edu
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