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Topic Area: Environment/Climate
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Displaying records 421 to 430 of 447 records.
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421. Thermomechanical Oscillations in Material Flow During High-Speed Machining
Topic: Environment/Climate
Published: 4/1/2001
Authors: Matthew A. Davies, Timothy J Burns
Abstract: This paper presents a nonlinear dynamics approach for predicting the transition from continuous to shear-localized chip formation in machining. Experiments and a simplified one-dimensional model of the flow both show that, as cutting speed is increa ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=823280

422. Time Domain Modal Estimation
Topic: Environment/Climate
Published: 1/1/1998
Authors: S Fahey, Jon Robert Pratt
Abstract: In a previous technical feature,2 we described some motives for performing structural dynamic tests and subsequently reviewed some frequency domain techniques for uncovering modal parameters. This time, we take up some applicable time domain algorith ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=820116

423. Tool Point Frequency Response Prediction for High-Speed Machining by RCSA
Topic: Environment/Climate
Published: 11/1/2001
Authors: Tony L Schmitz, Michael Kennedy, Matthew A. Davies
Abstract: The implementation of high-speed machining for the manufacture of discrete parts requires accurate knowledge of the system dynamics. We describe the application of receptance coupling substructure analysis (RCSA) to the analytic prediction of the too ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=821908

424. Tool Wear Mechanism in Continuous Cutting of Hardened Tool Steels
Topic: Environment/Climate
Published: 11/4/1997
Authors: Y K Chou, Christopher J. Evans
Abstract: Precision hard turning provides an alternative to grinding in some finishing applications. Rapid tool wear, however, remains an impediment to the process being economically viable. This experimental study investigates microstructural aspects of cubic ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=820028

425. Tool Wear and Surface Finish in High Speed Milling Aluminum Bronze
Topic: Environment/Climate
Published: 1/1/2001
Authors: Matthew A. Davies, Kate Medicus, Christopher J. Evans, Brian S. Dutterer, R S Fielder
Abstract: Aluminum bronze C95800 is used extensively for the manufacture of propellers, because of its mechanical strength and corrosion resistance. Typically these components are machined from large castings and then hand ground and polished. In this work, we ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=821862

426. Tool Wear and Surface Finish in High Speed Milling of Aluminum Bronze
Topic: Environment/Climate
Published: 1/1/2001
Authors: Kate Medicus, Matthew A. Davies, Brian S. Dutterer, Christopher J. Evans, R S Fielder
Abstract: Aluminum bronze C95800 is used extensively for the manufacture of propellers, because of its mechanical strength and corrosion resistance. Typically these components are machined from large castings and then hand ground and polished. In this work, we ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=823297

427. Towards an Information Processing Representation for Dynamic Process Optimization in Smart Machining Systems
Topic: Environment/Climate
Published: 5/1/2006
Authors: Laurent Deshayes, Lawrence A Welsch, Aurelie Vacher, M. Alkan Donmez
Abstract: Smart Machining Systems (SMS) are an important part of today''s manufacturing companies.  SMS include the use of diverse technologies that once integrated together, provide the capabilities of: producing the first and every product corre ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822543

428. Trace Element Concentrations in Cetacean Liver Tissues Archived in the National Marine Mammal Specimen Bank
Topic: Environment/Climate
Published: 12/1/1995
Authors: Elizabeth A Mackey, R. Demiralp, Paul R Becker, Robert Russ Greenberg, B. J. Koster, Stephen A Wise
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902625

429. Trace Elements in Human Livers Using Quality Control in the Complete Analytical Process
Topic: Environment/Climate
Published: 2/1/1984
Authors: Rolf Louis Zeisler, S H Harrison, Stephen A Wise
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902227

430. Transition from soliton to chaotic motion following sudden excitation of a nonlinear structure
Topic: Environment/Climate
Published: 1/1/1996
Authors: Matthew A. Davies, F Moon
Abstract: The existence of a transition from soliton-like motion to spatially and temporally disordered motions in a periodic structure with buckling nonlinearity is demonstrated. An experiment consisting of nine harmonic oscillators coupled with buckling sen ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=820070



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