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Application of High Energy Absorbing Materials for Blast Protection

References [1] Lu G., Yu T.: Energy absorption of structures and materials . Woodhead Publishing, Cambridge, England, 2003. 317–351. [2] Uddin N.: Blast protection of civil infrastructures and vehicles using composites . Woodhead Publishing Limited, 2010. [3] Conrath E. J. et al.: Structural Design for Physical Security State of the Practice . Structural Engineering Institute, US, Virginia, 1999. Chapter 2. 1–34. [4] Ashby M.F. et al.: Metal Foams: A design Guide . Butterworth-Heinemann, 2000. [5] Vaidya U. K.: Impact Response

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One Contribution to the Friction Investigation in Bulk Metal Forming

. the law of constant friction, Journal of Material Processing Technology 66, 1997, pp 186-194. Tan X.: Comparisons of friction models in bulk metal forming, Teratology International 35, 2002, pp 385-393. Fereshteh-Saniee F., Pillinger I., Hartley P.: Friction modeling for the physical simulation of the bulk metal forming processes, Journal of Material Processing Technology 153-154, 2004, pp 151-156. Joun M.S., Moon H. G., Choi I. S., Lee M. C., Jun B. Y.: Effects of friction on metal

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Tribology of nitrided-coated steel-a review

., Baggio-Scheid, V., Baptista, C., Barbosa, M., FatigueLife Changing in Rolled Carbon Steel after PlasmaThermochemical Treatments, Procedia Engineering 2 (2010)1653-1661. [14] VDI 3198:1992-08. Coating (CVD, PVD) of Cold Forging Tools.VDI-Verlag, (1991) Dusseldorf. [15] Vidakis, N., Antoniadis, A., & Bilalis, N. The VDI 3198indentation test evaluation of a reliable qualitative control forlayered compounds, Journal of Materials ProcessingTechnology 143-144 (2003) 481-485. [16] Bartkowska, A., Przestacki, D., Chwalczuk, T., Microstructure,phase composition and corrosion

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Finite Element Analysis Of Influence Of Flank Wear Evolution On Forces In Orthogonal Cutting Of 42CrMo4 Steel

Abstract

This paper presents analysis of flank wear influence on forces in orthogonal turning of 42CrMo4 steel and evaluates capacity of finite element model to provide such force values. Data about magnitude of feed and cutting force were obtained from measurements with force tensiometer in experimental test as well as from finite element analysis of chip formation process in ABAQUS/Explicit software. For studies an insert with complex rake face was selected and flank wear was simulated by grinding operation on its flank face. The aim of grinding inset surface was to obtain even flat wear along cutting edge, which after the measurement could be modeled with CAD program and applied in FE analysis for selected range of wear width. By comparing both sets of force values as function of flank wear in given cutting conditions FEA model was validated and it was established that it can be applied to analyze other physical aspects of machining. Force analysis found that progression of wear causes increase in cutting force magnitude and steep boost to feed force magnitude. Analysis of Fc/Ff force ratio revealed that flank wear has significant impact on resultant force in orthogonal cutting and magnitude of this force components in cutting and feed direction. Surge in force values can result in transfer of substantial loads to machine-tool interface.

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The reliability of reproducing automotive components made by FDM printing in reverse engineering

References [1] Galeoto M., Vezzetti E.,Reverse engineering of free-form surfaces: A methodology for threshold definition In selective sampling,International Journal of Machine Tools & Manufacture 46, 2006, p. 1079-1086. [2] Gzowski Ł., Siemiński P., Grygoruk R., Humienny Z.,Testing of the 3D printers accuracy by evaluation of the circularity and cylindricity deviations of the new artefact, Mechanik 12/2016, 1902 -1903. [3] http://www.igo3d.com.pl/pl/druk-3d/technologie (access14.03.2017). [4

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Influence of Water on Tribological Properties of Wood-Polymer Composites

water-lubricated polytetrafluoroethylene-based composites reinforced with carbon and basalt fibers, Composites: Part A 59 (2014) 85-92. [29] Ndiaye D., GueyeM., DiopB.,Characterization, physical and mechanical properties of polypropylene/wood-flour composites 38 (2013) 59-68. [30] Worzakowska M.,Novel DCPD-modified polyester containing epoxy groups: thermal, viscoelastic, and mechanical properties of their wood flour filled copolymers, Polymer Bulletin 68 (2012) 775-787. [31] Zakir Hossain K. M., ParsonsA. J., RuddC. D

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