618-1901/01 – Theory of Foundry Engineering Processes (TSP)

Gurantor departmentDepartment of Metallurgy and FoundryCredits10
Subject guarantordoc. Ing. Jiří Hampl, Ph.D.Subject version guarantordoc. Ing. Jiří Hampl, Ph.D.
Study levelpostgraduateRequirementChoice-compulsory
YearSemesterwinter + summer
Study languageCzech
Year of introduction2012/2013Year of cancellation
Intended for the facultiesFMTIntended for study typesDoctoral
Instruction secured by
LoginNameTuitorTeacher giving lectures
HAM33 doc. Ing. Jiří Hampl, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Examination 2+0
Combined Examination 2+0

Subject aims expressed by acquired skills and competences

Student will be able: -to define influences affecting foundry processes; -to describe basic processes during forming a casting from pouring it up to metal cooling; -to know the method of calculating the gating system; -to know the method of calculating the risers; -to explain the conception of controlled solidification. -to know the rules for obtaining good casting with no defects; -to apply the metal filtration aids during pouring and feeding of metal during solidification; -to solve the degasification and venting of a foundry mould.

Teaching methods

Lectures
Individual consultations
Other activities

Summary

Structure and physical properties of molten metals. The principles of metal flowing, pressure conditions in gatings. The running property of liquid metals and alloys and their coherence with the design of castings. The thermal and physical processes in a casting and in a mould. Interaction between casting and mould. Crystallization and solidification of castings. The thermodynamic conditions of crystallization. Shrinkage and drawing-off metals and alloys, the solidifying and solid state. Segregation-liquation in castings, the chemical non-homogeneity of castings. Stress in a casting, shrinking stress, internal thermal stress, phase stress, elastic and plastic state of material. The physical conditions of initiation of fissures and cracks in castings. Application of the acoustic emission on the state of stress at solidification, at cooling-down and at heat treatment of a casting. The computer’s simulation of solidification and of stress in a casting.

Compulsory literature:

CAMPBELL, J.: Castings, Butterworth-Heinemann. Oxford, 2000. SCHLEGG,F.P. et al. Technology of Metalcasting , AFS Publication, 2003.

Recommended literature:

STEFANESCU,D,,M. : Science and Engineering of Casting Solidification.Cluver Academic/Plenum Publishers, New York, 2002. DANTZIG,J.A.;RAPPAZ,M. : Solidification, EPFL Oress, Boca Raton,2009

Way of continuous check of knowledge in the course of semester

Elaboration of written project

E-learning

http://www.fmmi.vsb.cz/cs/okruhy/studium-a-vyuka/podklady-ke-studiu/studijni-opory/

Další požadavky na studenta

Elaboration of written project

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

1. Physical properties of molten metals and alloys. 2. Fluidity and castability of molten metal. 3. Flow dynamics of molten metal. 4. Gating system design. 5. Gases in metal and their transport in mould cavity. 6. Crystallization. Nucleation. Dendritic growth. 7. Solidification (freezing) of casting. Thermal axis. 8. Solidification contraction and shrinkage formation. 9. Hot spots. Chills. Feeding distance. 10. Risering (feeding) . Progressive and directional solidification. 11. Solid contraction. 12. Contraction stress. Hot tearing. 13. Properties of metals at high temperature (near solidus). 14. Thermal stress, Residual stress. Cold cracking.

Conditions for subject completion

Full-time form (validity from: 2012/2013 Winter semester, validity until: 2012/2013 Summer semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Examination Examination  
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.FormStudy language Tut. centreYearWSType of duty
2019/2020 (P2106) Metallurgy (2109V036) Metallurgical Technology P Czech Ostrava Choice-compulsory study plan
2019/2020 (P2106) Metallurgy (2109V036) Metallurgical Technology K Czech Ostrava Choice-compulsory study plan
2018/2019 (P2106) Metallurgy (2109V036) Metallurgical Technology P Czech Ostrava Choice-compulsory study plan
2018/2019 (P2106) Metallurgy (2109V036) Metallurgical Technology K Czech Ostrava Choice-compulsory study plan
2017/2018 (P2106) Metallurgy (2109V036) Metallurgical Technology P Czech Ostrava Choice-compulsory study plan
2017/2018 (P2106) Metallurgy (2109V036) Metallurgical Technology K Czech Ostrava Choice-compulsory study plan
2016/2017 (P2106) Metallurgy (2109V036) Metallurgical Technology P Czech Ostrava Choice-compulsory study plan
2016/2017 (P2106) Metallurgy (2109V036) Metallurgical Technology K Czech Ostrava Choice-compulsory study plan
2015/2016 (P2106) Metallurgy (2109V036) Metallurgical Technology P Czech Ostrava Choice-compulsory study plan
2015/2016 (P2106) Metallurgy (2109V036) Metallurgical Technology K Czech Ostrava Choice-compulsory study plan
2014/2015 (P2106) Metallurgy (2109V036) Metallurgical Technology P Czech Ostrava Choice-compulsory study plan
2014/2015 (P2106) Metallurgy (2109V036) Metallurgical Technology K Czech Ostrava Choice-compulsory study plan
2013/2014 (P2106) Metallurgy (2109V036) Metallurgical Technology P Czech Ostrava Choice-compulsory study plan
2013/2014 (P2106) Metallurgy (2109V036) Metallurgical Technology K Czech Ostrava Choice-compulsory study plan
2012/2013 (P2106) Metallurgy (2109V036) Metallurgical Technology P Czech Ostrava Choice-compulsory study plan
2012/2013 (P2106) Metallurgy (2109V036) Metallurgical Technology K Czech Ostrava Choice-compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner
FMMI 2016/2017 Full-time English Compulsory 601 - Study Office stu. block