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Theory and Technology of Metalcasting

Type of study Bachelor
Language of instruction Czech
Code 652-2034/01
Abbreviation TTSUS
Course title Theory and Technology of Metalcasting
Credits 7
Coordinating department Department of Metallurgical Technologies
Course coordinator doc. Ing. Petr Lichý, Ph.D.

Subject syllabus

1. History and the present of the foundry industry
2. Procedures of casting production description of individual production units, Production of castings using permanent metal mold and lost sand mold
3. Pattern making, materials, parting lines, scarfs, working allowance, core boxes, materials. Metal molds, sand molds
4. Molding wih split pattern, cores using, sweep molding – rotating and plane, hand and mechanized sand molding. Precision casting with lost wax pattern, Lost Foam, V-process
5. Production of castings using permanent metal mold, gravity casting, high and low pressure die casting, centrifugal casting. Melt fluidity and castability
6. Running system design depending on the type of poured metal. Running systems for art castings. Running system calculation.Calculation of metalostatic pressure and buoyancy .
7. Gases in melted metals, their dissolubility, methods of the melt degasing. Gases in the mold, methods of the mold degasing, vent holes. Blow hole formation.
8. Castings crystallization and solidification.Thermodynamic conditions of crystallization. Solidification time, shape of castig and mould material, thermal diffusivity of the mould
9. Solidification shrinkage and its consequence – shrinkage cavities, porosities – causes and prevention
10. Hot spots – facing their consequences, directional solidification , feeding, calculation of the riser volume
11. Linear contraction of the casting, hot tearing, cold cracking, residual stresses
12. General design of metal casting production, rapid prototyping. Methods of castings finnishing
13. Art casting manufacturing
14. Terminal consultation

Literature

[1] CAMPBELL, J. Complete casting handbook: metal casting processes, metallurgy, techniques and design. Second edition. Amsterdam: Elsevier Butterworth-Heinemann, 2015. ISBN 978-0-444-63509-9 .

Advised literature

[1] YOUNG, R.D. and R. A. FENNELL. Methods for modern sculptors. Escondido: Sculpt-Nouveau, 1980. ISBN 0-9603744-0-X.