ࡱ> :<9[ RFbjbj.*ΐΐ8 8#,O; ccccc. jllllll!$llcc4.MMMccjMjMMc :tRV; ,%^%D%VMll;; % :  Virtual Prototyping and Additive Manufacturing Dr. Ming C. Leu Keith and Pat Bailey Missouri Distinguished Professor Director, Center for Aerospace Manufacturing Technologies Director, Intelligent Systems Center Missouri University of Science and Technology Rolla, Missouri 65401 Abstract Virtual prototyping and additive manufacturing are critical to rapid product development and realization. This seminar will present the recent and ongoing research of the speaker in these two interconnected areas. Our virtual prototyping research includes development of geometric modeling techniques that comprise swept-volume representation using a sweep-differential equation approach, and surface reconstruction based on dexel modeling and tri-dexel modeling. The results of this research have been integrated with haptics and sound modeling for purpose of multi-modal rendering, and they have been applied to virtual sculpting, virtual bone surgery, and other virtual prototyping applications. Also presented is low-cost motion capture and application to automated real-time CAD model based simulation and analysis. Our additive manufacturing research includes the rapid freeze prototyping (RFP) process, the freeze-form extrusion fabrication (FEF) process, and the selective laser sintering (SLS) process. The RFP process builds an ice part by depositing and freezing water droplets on demand. The FEF process extrudes one or multiple aqueous pastes to fabricate parts from monolithic or functionally gradient materials. The SLS process fabricates a part by selectively sintering particles in a power bed. Our research for the various processes includes theoretical modeling and analysis, finite element simulation, process planning and control, and experimental testing. Also included in the research are post-processing and investigating the fabricated parts for aerospace, biomedical, and energy applications. Speaker Biosketch: Dr. Ming C. Leu is the Keith and Pat Bailey Missouri Distinguished Professor in the Department of Mechanical and Aerospace Engineering, Missouri University of Science and Technology. He also holds the leadership positions as the Director of Center for Aerospace Manufacturing Technologies and the Director of Intelligent Systems Center at Missouri S&T. Before joining Missouri S&T, he was a Program Director for Manufacturing Processes and Equipment at the National Science Foundation, 1996-1999. For the NSF appointment he was on leave from the New Jersey Institute of Technology, where he had been the State Chair Professor in Manufacturing Productivity since he joined NJIT in 1987. Before that he was on the faculty of the School of Mechanical and Aerospace Engineering, Cornell University. Dr. Leu obtained his Ph.D. degree in 1981 from the University of California at Berkeley, his M.S. degree in 1977 from the Pennsylvania State University, and his B.S. degree in 1972 from the National Taiwan University, all in mechanical engineering. Dr. Leus research interests include CAD/CAM, geometric modeling, virtual prototyping, rapid prototyping, and additive manufacturing. He has published over 320 papers in refereed journals and conference proceedings, 8 book chapters, and 4 U.S. patents. Through his research activities he has served as the principal advisor to 23 Ph.D. and over 60 M.S. graduates, as well as 15 post-docs. Dr. Leu has received several professional awards, including the ISFA Hideo Hanafusa Outstanding Investigator Award (2008), MCASTA Outstanding Scholar Award (2006), ASME Distinguished Service Award (2004), Missouri S&T AMAE Faculty Excellence Award (2001 & 2004), NJIT Harlan J. Perlis Research Award (1993), NSF Presidential Young Investigator Award (1985), SAE Ralph R. Teetor Education Award (1985), and FPRS Wood Paper Award (1981), and was on the NJIT team to receive the CASA/SME University Lead Award (1994). He was elected to ASME Fellow in 1993 and to CIRP Fellow in 2008, and is a member of the Sigma Xi, Tau Beta Pi, and Phi Kappa Phi honor societies. Dr. Leu has been very active in professional service activities. He organized and chaired the 2012 International Symposium on Flexible Automation and the 2006 NSF Design, Service and Manufacturing Research Conference. He was the General Chair of 2006 ASME International Mechanical Engineering Conference and was the Technical Program Chair of this conference in 2005. Additionally, he organized and edited the proceedings of eight other symposia in the manufacturing field. He was the ASME Vice President for Manufacturing, 1999-2002, and served on the Executive Committee of ASMEs Manufacturing Engineering Division, 1986-1990.      /01A    ߵs[@0hqhq5CJOJQJaJ4hqhqB*CJOJQJaJmHnHphsH u.heB*CJOJQJaJmHnHphsH u$hqhqB*aJmHnHphu0hqhqB*CJOJQJaJmHnHphu*hqB*CJOJQJaJmHnHphuhW75CJOJQJaJh}5CJOJQJaJhW7hX/5CJOJQJaJhW7h/5CJOJQJaJhRzk5CJOJQJaJhWQ 01A   & ' z{|678`gdxgdLC$a$gdCgd)  x]gdWQ $]a$gdq $L]La$gdq $>]>a$gdq $x]a$gdW7]gdWQ  % & ' ? U Z b   ' 6 T a } - . ? 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LeuMing C. Leu20060809T230323658Mf Ming C. LeuG*Ax Times New Roman5Symbol3. *Cx ArialG5  jMS Mincho-3 fg;([SOSimSun7.@ CalibriA BCambria Math"1h"T:G# 6 ! !4//2qHX ?WQ2!xx#Rapid Direct Digital Manufacturing: Ming C. Leuli Oh+'0  8 D P \hpx$Rapid Direct Digital Manufacturing: Ming C. LeuNormalli12Microsoft Office Word@0@  r@ @x:t՜.+,0  hp|  UMR! / $Rapid Direct Digital Manufacturing: Title  !"#$%&'(*+,-./02345678;Root Entry F@:t=1Table+%WordDocument.*SummaryInformation()DocumentSummaryInformation81CompObju  F#Microsoft Office Word 97-2003 ĵ MSWordDocWord.Document.89q