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Lecturer(s)
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Michna Štefan, prof. Ing. PhD.
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Michnová Lenka, Ing. Ph.D.
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Course content
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1. Importance of the foundry and its history, characteristics of foundry production and distribution 2. The production process nonpermanent molds and cores 3. Technology - design rule foundry technology and the choice of shaped castings. Use of advanced technologies in the production of casting parts for automobiles. 4. Modern and productive casting methods 5. Progressive Technologies offsetting forms - as investment and scraming model in-process, method C-Croning, method Shaw, etc. 6. Computer simulation programs for the casting material 7. Casting materials, properties, iron and nonferrous metals, summary and description. 8. Production of liquid metal - melt treatment and refining, modifying, vaccines, equipment for melting and casting metal, etc. 9. The nature, purpose and principle of modifying the vaccination of Al alloys and Fe alloys (the alloy), casting defects, classification of defects, corrective measures to avoid defects.
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Learning activities and teaching methods
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unspecified
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Learning outcomes
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TThe main goal of the course is a summary and description of the theoretical basis of metal forming from the perspective of hot and cold plastic deformation, changes in the structure and substructure of the material. Students will acquire basic knowledge in the field of forming processes, changes in mechanical, physical, chemical and structural properties during forming, laws of plastic deformation, description of theory and changes in material in the field of volume forming, description of factors influencing formability, technological conditions of forming and its influencing, material strengthening when forming, etc. Course contents: 1. The essence of forming and division of forming processes. The essence of plastic deformation, formability and technological formability, deformation resistance and state of stress of material. 2. Main factors influencing the formability of the material. 3. Physical nature and conditions of plastic deformation, structure of solids, crystalline and amorphous substances, crystallographic lattices, Miller indices, lattice defects, dislocations, determination of critical stress, dislocation density, Frank-Read dislocation source, Orowan bending anchored dislocations, etc. 4. Basic laws of plastic deformation and its use in forming technology. 5. Formation of directional and cross-sectional anisotropy of mechanical properties during forming and its influence on the mechanical properties of the material. 6. Precipitation during plastic deformation of material and its influencing. 7. Strengthening by permanent cold deformation. Recovery and recrystallization. 8. Influence of metallurgical factors on formability of steel. 9. Principles and conditions of surface forming of material. 10. Principles and conditions of volume forming of material. 11. Improvement of forming conditions, elimination of shear stress by lubrication of the material surface. 12. Mechanism of permanent violation of material cohesion and its separation.
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Prerequisites
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Assessment methods and criteria
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unspecified
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Recommended literature
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B. BEDNÁŘ. Technologičnost konstrukce odlitků. UJEP 2005..
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I. NOVÁ, I. NOVÁKOVÁ, J. BRADÁČ, J. TECHNOLOGIE I. - slévání a svářování, 2006.
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I. NOVÁ. Teorie slévání I. Liberec 2006. 2006.
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J. KOREŇ, A. PRIBULOVÁ. Vybrané kapitoly zo zlievárenských technológií..
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J. PLACHÝ, M. NĚMEC. Metalurgie a technologie slévárenských slitin. 1993.
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NOVOTNÝ, J. A KOL. Technologie I. Slévárenství, tváření a povrchové úpravy.
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Š. Michna a kol. Encyklopedie hliníku,kapitola 4, 6, 7, 200. 2005.
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Š. Michna, I. Nová. Technologie a zpracování kovových materiálů, 2008. 2008.
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T. GRÍGEROVÁ, T. a kol. Zlivárenstvo neželezných kovov. 1988.
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Z. BERÁNEK. Slévárenství. 1997.
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