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FEM Analysis of the Skin Contamination Behavior in the Extrusion of a AA6082 Profile Marco Negozio1,a*, Riccardo Pelaccia2,b, Lorenzo Donati1,c and Barbara Reggiani2,d 1*DIN- Department of Industrial Engineering, University of Bologna, Viale Risorgimento 2, 40136, Bologna, Italy 2DISMI- Department of Sciences of Methods for Engineering, University of Modena and Reggio Emilia, Viale Amendola 2, 42124, Reggio Emilia, Italy amarco.negozio2@unibo.it, briccardo.pelaccia@unimore.it, cl.donati@unibo.it, dbarbara.reggiani@unimore.it Keywords: skin contamination, back-end defect, FEM, Qform, extrusion Abstract.
As shown in Fig. 1, during the process stroke, the skin volume (red in the figure) accumulates near the ram in relation to the high friction factor with the container and, as the former advances, it flows towards the centre of the billet and the extrusion die.
Hirsch, Automotive trends in aluminium - The European perspective, Materials Forum. 28(3) (2004) 15–23
Buchmayr, Finite element method simulation of internal defects in billet-to-billet extrusion, Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 224 (2010) 1029-1042

Mawby1) 1) School of Engineering, University of Warwick, Coventry, United Kingdom 2) ICN2 - Institut Catala de Nanociencia i Nanotecnologia, E-08193 Bellaterra, Barcelona, CAT, Spain y.k.sharma@warwick.ac.uk Keywords: 3C-SiC, High-temperature oxidation, C-V, G-V, interface traps, N2O annealing Abstract: A systematic study on the 3C-SiC/SiO2 interface has been done. 3C-SiC epilayers have been grown on a Si (001) substrate.
Acknowledgements: This project, Vehicle Electrical Systems Integration (VESI), was funded by the Engineering and Physical Sciences Research Council (ESPRC), (Grant # RESEE-3065).
Agarwal, Advances in Silicon Carbide Processing and Applications (Artech House 2004)
Forums 778, 599 (2014)

"D8 Advance Eco" Bruker (US) X-ray diffractometer with the survey geometry by Bragg-Brentano, which provides for strictly parallel reflecting planes and substrate surfaces at all Bragg angles θ, has been used to determine the plane stress state of molybdenum coating.
Process Engineering of Dimensional Fused Silica Etching, Materials Science Forum. 870 (2016) 20-25
Shen, Effect of deposition conditions on mechanical stresses and microstructure of sputter-deposited molybdenum and reactively sputter-deposited molybdenum nitride films, Materials Science and Engineering.

Lineu Prestes, 2242 - Cidade Universitária, 05508-000, São Paulo SP, Brazil 2 Escola Superior de Agricultura Luiz de Queiroz - ESALQ 3 General Motors do Brasil - Materials and Fastening Engineering Department 4 Brasimet Comércio e Indústria - Application Engineering Department esjfilho@usp.br Keywords: valve seat insert, high-speed-steel AISI M3/2, powder metallurgy, heat treatment.
The microstructural analyses for EDS in the heat-treated alloy 1 (Fig. 7, points a, b and c), characterise better the phenomenon, showing the evolution of the diffusion mechanism that starts of the darkest area (point b) containing larger amounts of Fe, and it advances to point c (high-speed steel islands).
Materials Science Forum, Zurich, v. 498-99, p. 79-84, 2005

Scaltrito 2, d 1 Politecnico di Torino, Physics Department, C.so Duca degli Abruzzi 24,Torino IT-10129,Italy 2 Politecnico di Torino, Materials Science and Chemical Engineering Department, C.so Duca degli Abruzzi 24,Torino IT-10129,Italy a marco.naretto@polito.it, bdenis.perrone@polito.it, csergio.ferrero@polito.it, d luciano.scaltrito@polito.it Keywords: Schottky diode, electrical characterization, non-uniform barrier Abstract.
Pensl, Silicon Carbide: Recent Major Advances, eds.
Ferrero et al., Microelectronic Engineering Vol. 83 (2006), pp. 86-88 [7] D.
Forum Vols.615-617 (2009), pp. 647-650 [8] A.

Pirri6,f 1 Physics Department, Politecnico di Torino, C.so Duca degli Abruzzi 24, IT10129, Torino, Italy. 2,3,4,5,6 Materials Science and Chemical Engineering Department, Politecnico di Torino, C.so Duca degli Abruzzi 24, IT10129, Torino, Italy. 1,2,3,4,5,6 Materials and Microsystems Laboratory, Politecnico di Torino, Via Lungo Piazza d’Armi 6, IT10034, Chivasso (To), Italy.
Pensl, Silicon Carbide: Recent Major Advances (Springer-Verlag, Berlin, Heidelberg, New York 2004) [3] L.M.
Davis, Materials Science and Engineering B34 (1995), p. 83 [4] D.
Forum Vols. 615-617 (2009), p. 647 [5] T.

Numerical Simulation and Experimental Study on Warm Forging Process of Half Axle Bevel Gear Ying Tong Department of Mechatronics Engineering, Chongqing College of Electronic Engineering, Chongqing (401331), China tongying2004@126.com Keywords: Volume Forming, Heat Conduction, Wear, Crankshaft.
It doesn’t need soften anneal and annealing between each working procedure and surface treatment in advance on warm precise forging, for organized and continuous production.
Materials Science Forum, 2008, 575-578: 334-339.

Effects of Heat Treatment on Strength Wear Sintered Alloy Steels BUCSE Ionela-Gabriela1a *, GHERMEC Olimpia1b, CIOBANU Mariana1c, GHERMEC Cristian1d and NICOLICESCU Claudiu1e 1University of Craiova, Faculty of Mechanics, Department of Engineering and Management of Technological Systems, 1st Calugareni Street, 220037, Drobeta Turnu Severin, Romania abucse_ionela@yahoo.com, bolimpia_ghermec@yahoo.com, cmaryana_ciobanu@yahoo.com, dcristian_ghermec@yahoo.com, enicolicescu_claudiu@yahoo.com Keywords: heat treatment, powder metallurgy, sintered alloy steels, strength wear.
Torralba, Effect of heat treatments on Cr-Mo steels based on astraloy Cr powder grade whit manganese auditions, Materials Science Forum 416-418, 1 (2003) 82-88
Lawley, Effect of Porosity on the Hardenability of P/M Steels, Advances in Powder Metallurgy & Particulate Materials, compiled by W.B.
Soundararajan, Optimization of Process Variables in Gas Carburizing Process: A Taguchi Study with Experimental Investigation on SAE 8620 and AISI 3310 Steels, Turkish Journal of Engineering and Environmental Science 29 (2005) 279-284

Kondratyev1,c 1 Bryansk State Engineering Technological University, 3 Stanke Dimitrova str., Bryansk, Russia alady-vasunina@yandex.ru, btheshadyboom@yandex.ru, с5986128@gmail.сom Keywords: building ceramics, organic-mineral additive, wollastonite, superplasticizer S-3, physical and mechanical properties.
Lukutsova, Sand-clay raw materials for silicate materials production, Advances in Environmental Biology. 8 (10) (2014) 949-955
Vasyunina, Influence of additives on the properties of building ceramics, International innovation forum: Construction-2016. (2016) 48-52
Series: Materials Science and Engineering. 262(1) (2017) 012025

Jia2, b 1, 2School of Mechanical and Electrical Engineering, Harbin Institute of Technology, Harbin 150001, P.R. of China a, bhunter@hit.edu.cn Keywords: Diamond cutting, tool wear, glass, orthogonal experiment Abstract.
However, diamond cutting of glass has not yet proven practical because of high tool wear rate and low production efficiency, although some advances in precision cutting of glass have been made as reported in the literatures.
Mangamelli: Precision Engineering Vol. 18(1) (1996), p. 4 [2] C.
Li: Materials Science Forum Vol. 626-627 (2009), p. 50 [4] M.