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Dissertations / Theses on the topic 'Die-casting'

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1

Hogan, Patrick Alan. "Prediction and Reduction of Die Soldering." Digital WPI, 2008. https://digitalcommons.wpi.edu/etd-theses/523.

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Die Soldering occurs in aluminum permanent mold casting when the cast metal bonds with the die surface and remains stuck upon ejection of the part. Eventually, this layer builds up and production must be stopped for cleaning. It was estimated in a Contech squeeze casting plant in Pierceton, IN, that 1.5% of variable overhead can be directly attributed to die soldering. Previous work at WPI has focused on developing the mechanism of how soldering occurs. This work focuses on how that knowledge can be applied in an industrial setting. The work has focused on 4 major areas: (1) Using MAGMA
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2

Mao, Haijing. "A numerical study of externally solidified products in the cold chamber die casting process." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1095790853.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xvi, 162 p.; also includes graphics. Includes bibliographical references (p. 158-162).
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3

Garza-Delgado, Abelardo. "A study of casting distortion and residual stresses in die casting." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1196175848.

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4

Chen, Chien-Lung. "Evaluation of aluminum die casting defects causing casting rejection during machining." Connect to resource, 1997. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1155309911.

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5

Dedhia, Sanjay Z. "Study of the effect of structural variables of die on die deflections." Connect to this title online, 1997. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1102101285.

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Thesis (M.S.)--Ohio State University, 1997.<br>Advisor: Richard Allen Miller, Dept. of Mechanical Engineering. Includes bibliographical references (leaves 141-142). Available online via OhioLINK's ETD Center.
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6

Weller, Martin L. "An analysis of the applicability of rule based technology to a representative domain." Thesis, Teesside University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387023.

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7

Ragab, Adham Ezzat. "Sensitivity Analysis of Casting Distortion and Residual Stress Prediction Through Simulation Modeling and Experimental Verification." The Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=osu1052493015.

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8

Spataro, Mark Paul. "Comparison of mechanical performance between magnesium alloy sand castings and high pressure die castings /." [St. Lucia, Qld.], 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18378.pdf.

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9

Padiyar, Ganesh. "A study of die deformations in die casting." Connect to resource, 1994. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1155308755.

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10

Shi, Qi. "PREDICTION OF THERMAL DISTORTION AND THERMAL FATIGUE IN SHOT SLEEVES." The Ohio State University, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=osu1034967167.

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11

Pego, Guerra Marco Antonio. "Die casting design, a parametric approach." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0026/MQ27023.pdf.

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12

Persson, Anders. "On Tool Failure in Die Casting." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3448.

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13

Pego-Guerra, Marco Antonio Carleton University Dissertation Engineering Mechanical and Aerospace. "Die Casting design, a parametric approach." Ottawa, 1997.

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14

Venkatasamy, Vasanth Kumar. "Analysis of in-cavity thermal and pressure characteristics in aluminum alloy die casting." Connect to this title online, 1996. http://rave.ohiolink.edu/etdc/view?acc_num=osu1100721824.

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15

Sivertsen, Halses Sebastian. "Die life prediction using High Pressure Die Casting simulations." Thesis, Tekniska Högskolan, Jönköping University, JTH, Material och tillverkning, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-50031.

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Global trends in automotive industry for weight reduction drives an interest for casting of structural aluminum parts. High pressure die casting (HPDC) is chosen for this purpose since it enables manufacturing of large series parts where complexity and repeatability is demanded. Aluminum alloys have hence been developed through the years to obtain suitable mechanical properties for high strength parts. These alloys have been investigated to predict the types of potential failure mechanisms during HPDC in order to determine die life through simulations. Die life prediction was performed through
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16

Osborne, Mark Albert. "Analysis of the effects of die casting process control on casting dimensional variability /." The Ohio State University, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487862399449976.

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17

Tuncer, Munir Cihangir. "Precision forging hollow parts." Thesis, University of Birmingham, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.558075.

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18

Karni, Yiftah. "Selection of process variables for die casting /." The Ohio State University, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487688507504379.

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19

Elfakharany, Essameldin F. "Qualitative Reasoning for filling pattern in high-pressure die-casting and gravity-driven casting /." The Ohio State University, 1999. http://rave.ohiolink.edu/etdc/view?acc_num=osu1488192447430967.

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20

Roberts, Michael John, and edu au jillj@deakin edu au mikewood@deakin edu au wildol@deakin edu au kimg@deakin. "A Modified Life Cycle Inventory of Aluminium Die Casting." Deakin University. School of Engineering and Technology, 2003. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20040825.110759.

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Aluminium die casting is a process used to transform molten aluminium material into automotive gearbox housings, wheels and electronic components, among many other uses. It is used because it is a very efficient method of achieving near net shape with the required mechanical properties. Life Cycle Assessment (LCA) is a technique used to determine the environmental impacts of a product or process. The Life Cycle Inventory (LCI) is the initial phase of an LCA and describes which emissions will occur and which raw materials are used during the life of a product or during a process. This study has
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21

Wang, Dongtao. "Equilibrium temperature analysis and fill pattern reasoning for die casting process." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1095171663.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xx, 199 p.; also includes graphics. Includes bibliographical references (p. 196-199).
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22

Lui, Ying Bik. "The fluid dynamics of pressure die casting processes." Thesis, Brunel University, 1997. http://bura.brunel.ac.uk/handle/2438/5224.

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The main text of the thesis consists of seven chapters. Following the literature survey, the work in Chapter 2 focuses on the study of the whole process of pressure die casting. The necessity of reclassification against the traditional 'three-stage' description is introduced in order to build a new basic tenet in constructing theoretical and practical investigations, which leads to the creation of fluid dynamic mathematical models of the process. On the basis of Chapter 2, Chapter 3 concentrates on dealing with the computer simulation of filling flow patterns occurring in the third stage that
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23

Zhou, Liang. "Modeling interface advection in the die casting processes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ36914.pdf.

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24

Li, Guoming. "FEM modeling of the die casting filling process." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0018/MQ57730.pdf.

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25

Shi, XinMei. "Defect minimizing control of low pressure die casting." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/42720.

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Controlling and eliminating defects, such as macro-porosity, in die casting processes is an on-going challenge for manufacturers. Current strategies for eliminating macro-porosity focus on the execution of pre-set casting cycles, die structure design or the combination of both. To respond to process variability and mitigate its negative effects, advanced process control methodology has been developed to dynamically drive the process towards optimal dynamic or static operational conditions, hence minimizing macro-porosity in the casting. In this thesis, a Finite Element heat transfer model has
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26

Long, A. D. "Extending life of High Pressure Die Casting Dies." Thesis, Queen's University Belfast, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.527834.

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27

Ning, Zhaohui. "Visualization for Runner System Design in Die Casting." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1253223785.

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28

Sawhney, Ashish. "Activity based costing model for die-casting tooling." The Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu1407507868.

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29

Rebello, Alexander B. "Visualization of the filling of die casting dies /." The Ohio State University, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487947501132694.

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30

Li, Guoming Carleton University Dissertation Engineering Mechanical and Aerospace. "FEM modeling of the die casting filling process." Ottawa, 2000.

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31

Choudhury, Aswin K. "Study of the Effect of Die Casting Machine upon Die Deflections." The Ohio State University, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=osu1391786517.

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32

Ahuett-Garza, Horacio. "Characterization of loads in die casting and prediction of die deflections." Connect to resource, 1996. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1155304288.

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33

Ferenc, Filip. "Pevnostní analýza formy pro vysokotlaké odlévání." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400490.

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This master thesis had been created at the instigation of Skoda Auto. a.s. tool design department, which designed a new concept of the diecast mold. For this new concept of construction mold was requested to describe its strain-stress behaviour. The main goal of this thesis was to run s-s analysis. According to results of s-s analysis the potentially risky location had been found and the recommendation of the design improvement had been made. The problem has been solved by Finite Element Method in software ANSYS Workbench. The output of the work is mainly used as a basis for the design of high
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34

Hugo, Philip. "Suitability of layer manufacturing technologies for rapid tooling development in investment casting." Thesis, Link to the online version, 2008. http://hdl.handle.net/10019/847.

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35

Štipl, Pavel. "Technologie lití vysokotlakých odlitků a vlivy působící na jejich kvalitu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231432.

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This diploma thesis deals with the technology of high pressure die casting and especially influences having effect on their final quality. The aim of this thesis is to design the measures to convert casting of the cylinder for chainsaw into the serial production. The thesis contains a description of the production of castings by technology of high pressure die casting, theoretical analysis of the factors with effects on their final quality and practical description of the conversion casting of cylinder for chainsaw into the serial production. The problem of converting to serial production has
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36

Deez, Brent Steven. "An investigation on the suitability of layer manufacturing methods for rapid tooling development in investment casting of light metal alloys." Thesis, Cape Peninsula University of Technology, 2010. http://hdl.handle.net/20.500.11838/2228.

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Thesis (MTech (Mechanical Engineering))--Cape Peninsula University of Technology, 2010.<br>The research presented in this report focuses on Investment Casting capabilities for light metal alloys in South Africa and forms part of the Advanced Manufacturing Technology Strategy's (AMTS): Light Weight Metals flagship programme. The research is centred on the suitability of rapid prototyping (RP)/Iayer manufacturing (LM) methods to produce patterns for the investment casting of aluminium (AI), magnesium (Mg) and titanium (Ti) alloys, together known as Rapid Investment Casting. Three core RP te
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37

Liou, Shuh-Yuan. "Diecast : a knowledge based approach to die casting design /." The Ohio State University, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=osu1258487382.

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38

Jain, Rajesh (Rajesh Baboola) Carleton University Dissertation Engineering Mechanical and Aerospace. "A 2D transient thermal analysis of pressure die casting." Ottawa, 1994.

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39

Sadeghi, Mohammad. "Optimization product parts in high pressure die casting process." Licentiate thesis, Mälardalens högskola, Framtidens energi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-27733.

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This thesis describes optimization of die temperature in high pressure die-casting (HPDC) of A380 alloy by experimental observation and numerical simulation with the use of statistical tools. The goal of this research is to determine the optimum die temperature to minimize incidence of these defects and thus maximize production of parts without defects.   In HPDC, molten metal is injected into the die at high speed (40-60 m/s for aluminum alloys). Die temperature plays an important role on the rate of rejected parts. Therefore, flow patterns of molten metal in HPDC of an automotive component w
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40

Lee, Soon Gi. "Quantitative Characterization of Processing-Microstructure-Properties Relationships in Pressure Die-Cast Mg Alloys." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/11552.

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The central goal of this research is to quantitatively characterize the relationships between processing, microstructure, and mechanical properties of important high-pressure die-cast (HPDC) Mg-alloys. For this purpose, a new digital image processing technique for automatic detection and segmentation of gas and shrinkage pores in the cast microstructure is developed and it is applied to quantitatively characterize the effects of HPDC process parameters on the size distribution and spatial arrangement of porosity. To get better insights into detailed geometry and distribution of porosity and ot
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41

Pereira, M. F. V. T., M. Williams, and R. Bruwer. "Rapid die manufacturing using direct laser metal deposition." Journal for New Generation Sciences, Vol 7, Issue 3: Central University of Technology, Free State, Bloemfontein, 2009. http://hdl.handle.net/11462/542.

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Published Article<br>Global issues such as energy and climate changes have impacted on both the automotive and aerospace industries, forcing them to adopt measures to produce products that consume fewer combustibles and emit less carbon dioxide. Making vehicles lighter is one of the logical ways of reducing fuel consumption. The need for light components, able to fulfil technical and quality specifications, led to market growth for tooling that is able to mass produce parts using manufacturing processes such as high pressure die casting. Competitive pressures to reduce the lead time required f
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42

Klarner, Andrew Daniel. "Development of Mg-Al-Sn and Mg-Al-Sn-Si Alloys and Optimization of Super Vacuum Die Casting Process for Lightweight Applications." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1515083355012541.

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43

Gulizia, Stefan. "Soldering in high pressure die casting (HPDC) performance evaluation and characterisation of physical vapour deposition (PVD) coatings /." Swinburne Research Bank, 2008. http://hdl.handle.net/1959.3/39640.

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Thesis (MEng) - School of Engineering and Science, Swinburne University of Technology, 2008.<br>Thesis submitted for the degree of Master of Engineering, School of Engineering and Science, Swinburne University of Technology, 2008. Typescript. Includes bibliographical references (p. 98-101).
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44

Waschkies, Thomas. "Untersuchung der Einflussfaktoren auf die Mikrostrukturausbildung beim Gefriergiessen (Freeze-Casting)." Karlsruhe Univ.-Verl, 2009. http://d-nb.info/997862890/04.

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45

Roychowdhury, Sayak. "Investigation of Flash-free Die Casting by Overflow Design Optimization." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1406121850.

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46

Fiorese, Elena. "Process parameters affecting quality of high-pressure die cast aluminium alloys." Doctoral thesis, Università degli studi di Padova, 2016. http://hdl.handle.net/11577/3426773.

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High pressure die casting (HPDC) is a widely used process for manufacturing components with high production rate and complex geometries. However, high pressure die casting is still considered a “defect generating process”, since an amount of 5-10% of scrap is usually detected in castings. For this reason, the availability of new standards and tools for optimizing the process is one of the prominent needs of foundry field. Both these issues are tackled in this Thesis. First, a new classification of defects and reference dies for estimating the static mechanical properties of aluminium alloys
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47

Pereira, M. F. V. T., M. Williams, and Preez W. B. Du. "Characterization of metal powder based rapid prototyping components with respect to aluminium high pressure die casting process conditions." Journal for New Generation Sciences, Vol 8, Issue 2: Central University of Technology, Free State, Bloemfontein, 2010. http://hdl.handle.net/11462/563.

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Published Article<br>This paper is based on tests performed on die component specimens manufactured by EOS-DMLS (direct metal laser sintering) and LENS (laser engineered net shape) RP (rapid prototyping) technology platforms, as well as manufactured specimens machined out of preferred standard hot work steel DIN 1.2344. These specimens resemble typical components used in metal high pressure die casting tool sets. The specimens were subjected to a programme of cyclic immersion in molten aluminium alloy and cooling in water-based die release medium. The heat checking and soldering phenomena were
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48

Moayedinia, Sara. "Quantification of cooling channel heat transfer in low pressure die casting." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/48509.

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The focus of this project is to develop a methodology to quantitatively describe the heat transfer in the cooling channels of the low-pressure die casting process, which is the dominant commercial technology for the production of aluminum automotive wheels, and to successfully implement the methodology in a numerical model of the casting process. Towards this goal, an algorithm capable of calculating heat transfer coefficient (HTC) based on process parameters and surface temperature within the cooling channel is developed. The algorithm was implemented in the form of a user-defined subroutine
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49

Cao, Bin. "On-line ultrasonic monitoring of injection molding and die casting processes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1996. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ44084.pdf.

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50

Wang, Bin. "The prediction of low cycle fatigue for die casting with FEM." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ57753.pdf.

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