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Theory and Technology of Foundry

Type of study Bachelor
Language of instruction Czech
Code 652-2311/01
Abbreviation TTS
Course title Theory and Technology of Foundry
Credits 5
Coordinating department Department of Metallurgical Technologies
Course coordinator doc. Ing. Ivana Lichá, Ph.D.

Subject syllabus

1. Introduction.
2. Foundry industry. 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 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.
13. Simulation of crystalization and solidification. Rapid prototyping methods in foundry.. Methods of castings finnishing

E-learning

Study supports in the E-learning system.

Literature

1. LICHUN, LCH.; SCOTT, H. Casting design and modeling, ASM International, 2009, s. 295, ISBN 978-0-87170-724-6 
2. KHAN, M. A. A., SHEIKH, A. K., AL-SHAER, B. S., KHAN, M. A. A., SHEIKH, A. K., & AL-SHAER, B. S. (2017). Evolution of metal casting technologies—a historical perspective (pp. 1-43). 2017. Springer international publishing.
3. SINGH, R, SINGH, J.P. Comparison of rapid casting solutions for lead and brass alloys using three-dimensional printing. Proc Inst Mech Eng Part C J Mech Eng Sci. 2009; 223: 2117–2123.

Advised literature

1. PATTNAIK, S., KARUNAKAR, D.B., JHA, P.K. Developments in investment casting process—a review. J Mater Process Technol. 2012; 212: 2332–2348.
2. ROBLES HERNANDEZ, F. C.; HERRERA RAMÍREZ, J. M.; MACKAY, R. Al-Si Alloys: Automotive, Aeronautical, and Aerospace Applications. Cham: Springer International Publishing, 2017. ISBN 978-3319583792 .
3. PATIL, R. T.; METRI, V. S.; TAMBORE, S. S. Analysis and simulation of die filling in gravity die casting using MAGMA software. International Journal of Engineering Research & Technology (IJERT), 2015, 4.11.