报告题目：Additive Manufacturing Activities at MSU
报告人：Patrick Kwon ( Michigan State University)
Additive manufacturing activities at MSU focuses on metal AM processes which can be categorized into four distinct areas, Binder Jet Printing (BJP), Electron Beam and Laser Beam powder bed (EBPB & LBPB) and directed energy deposition (DED) in addition to hybrid manufacturing. MSU has three core faculty members in additive manufacturing, Profs. H. Chung, H. Sahasrabudhe and myself and three additional faculty members in heat transfer, Prof. J. Klausner, A. Bernard and J. Yeom. BJP is an ideal process for less oxidation prone metallic alloys such as stainless steels and nickel alloys, which can produce residual stress-free parts. New processing technique has been developed to achieve full density parts using BJP. This technique has been applied to few practical applications. However, being able to produce reactive metals such as titanium will require more advanced equipment such as EBPB and LBPB. For larger structures, EBPM is better as the processing take place at an elevated temperature and, after the completing the process, the produced part can be cooled uniformly, generating minimum residual stresses. Thus, the advantage of EBPM is being able to produce large parts but suffers from poor surface finish due to large size powders required. While LBPB can produce much better surface finish but suffers from intense residual stresses as the processing carried out nominally in room temperature. The other interest is with a hybrid system where DED and subsequent machining can take place simultaneously. This presentation will also present various efforts being made at MSU.
Patrick Kwon, Professor and Associate Chair for Graduate Studies Department of Mechanical Engineering. He received B.S.E. with magma cum laude in Mechanical Engineering, University of Michigan, AnnArbor,Michigan in 1983, S.M. in Mechanical Engineering Massachusetts Institute of Technology,Cambridge,Massachusetts in1985 and Ph.D. in Mechanical Engineering,University of California,Berkeley,California in 1994.
Design and Processing of Advanced Multifunctional Materials, Additive Manufacturing, Microstructural impact on Machining and Sustainable machining with Nano-lubricants, metal & ceramic powder Processing, Design & fabrication of high temperature ceramic micro- chemical system.
Certificate of Appreciation, ASME Manufacturing Engineering Division (2015) Certificate of Appreciation for dedicated service, College of Engineering, MSU (2015) Michigan Campus Compact Faculty/Staff Community Service-Learning Awards (2006), Withrow Teaching Excellence Award at MSU(2000),
Best Paper Award at ASME/ETCE Symposium (1992), and
Best Paper (Bunshah Award) at International Conference on Metallurgical Coatings (1985).
American Society for Mechanical Engineering (ASME), Society of Manufacturing Engineering (SME),
American Society for Engineering Education (ASEE), American Society of Precision Engineering (ASPE) Tau Beta Pi (Engineering Honor Society),
Pi Tau Sigma (Mechanical Engineering Honor Society), Phi Kappa Phi,
National Golden Key Honor Society, and
Korean-American Scientist and Engineers Association (KSEA)
P. Kwon and Yeom, J., 2016, ‘Microchemical System Apparatus and Related Methods of Fabrication,’ U.S. Patent Application No. 15/685,095
P. Kwon, ‘Metallic Sintering Compositions Including Boron Additives and Related Methods,’ U.S. Provisional Application No. 62/346,695
P. Kwon, ‘Perspirable Skin’ provisional patent application, Serial No. 61/131,028.
P. Kwon and L. Drzal, “Nanoparticle Graphite Based Minimum Quantity Lubrication Method and Composition,” Michigan State University 4.1-899, TEC2008-0079-01Prov, Granted US Patent No. 9,080,122 B2 Jul. 14, 2015