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Microscopical Examination of 3D Printed Surfaces
by Martin Kocanda, PhD - Northern Illinois University
FRIDAY, November 20, 2015
To be held at
McCrone Research Institute
2820 South Michigan Avenue
Chicago, IL 60616
6:00 PM: Mexican food and sides ~ Tariff ~ $15.00
Contact Freddie Smith for Reservations / Cancellations at 312-842-7100 or
by Noon Thursday, November 19, 2015
7:00 PM: Presentation
Advanced manufacturing technology has evolved extensively since the early 1980s. The advancement has been attributed to the use of electronic sensors and embedded microprocessors to implement precision control systems intended to form parts containing smooth regular surfaces. The early phase employed computer numerical control (CNC) to manufacture single prototype devices generated from a computer aided drawing (CAD). The present state-of-the-art has shifted to the use of 3D printers to print prototype parts rather than perform cutting and milling using CNC tools. Although the precision of CNC cannot be repeated using 3D printing, reasonable precision can still be obtained. The bottom-up approach of making prototype parts using high density polymers has gone from an expensive novelty to an affordable hobbyist workshop adjunct. This work examines the surfaces of a collection of 3D printed prototype parts and examines the structural deformities of the surfaces when stressed. In particular, printed weapon parts and fracture matching present an interesting challenge.
Dr. Martin Kocanda is a Visiting Assistant Professor in the Electrical Engineering department, and the Director of Electrical Engineering Laboratories. He received his Ph.D. in Chemistry/Electrical Engineering from Northern Illinois University in 2009. His research focuses on Sensors, Instrumentation, forensic chemistry and Digital Signal Processing (DSP). Specifically, he works on the design, analysis and validation of microelectronic sensors for chemical, biochemical, biometric and environmental measurements that employ nanoscale and microelectronic fabrication methods. Related interests include materials characterization and surface morphology determination of dielectrics, semiconductors, ferroelectric and ceramic materials at the nanoscale level using advanced electron microscopy and spectroscopy. He is also a member of the State Microscopical Society of Illinois.
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