652-2302/02 – Fundamentals of foundry technology (ZTS)
| Gurantor department | Department of Metallurgical Technologies | Credits | 5 |
| Subject guarantor | doc. Ing. Ivana Lichá, Ph.D. | Subject version guarantor | doc. Ing. Ivana Lichá, Ph.D. |
| Study level | undergraduate or graduate | Requirement | Compulsory |
| Year | 2 | Semester | summer |
| | Study language | English |
| Year of introduction | 2023/2024 | Year of cancellation | |
| Intended for the faculties | FMT | Intended for study types | Bachelor |
Subject aims expressed by acquired skills and competences
Knowledge gained:
- The student will be able to define and characterize the basic technologies of production of castings into disposable and permanent moulds
- the student will be able to analyse and compare basic mould and core manufacturing processes
- the student will be able to describe the basic processes involved in the manufacturing of a casting from the casting of molten metal to its solidification
Skills Acquired:
- The student will be able to use his/her knowledge to decide on the appropriate process to use for a given type of casting
- the student will be able to design a technological process for the production of a casting (mould, gating system, venting)
- the student will be able to explain the most important defects in castings
Teaching methods
Lectures
Individual consultations
Tutorials
Summary
The aim of the course is to acquaint the student with the basic processes in the production of a casting from filling the cavity of the foundry mould with liquid metal to complete solidification of the metal. The student will be able to define and describe the various influences acting on these processes. For example, attention is given to the following areas: the use of permanent and disposable moulds in the production of castings, moulding mixtures and their components, precision casting technology, basic physical properties of melts, metal and alloy fluidity, design of gating systems, cast-mould interactions, crystallisation and solidification of castings, stresses in castings, principles of basic defects in castings.
Compulsory literature:
Recommended literature:
Way of continuous check of knowledge in the course of semester
Oral examination with written preparation, part of the student's grade is the previous submission of a project on the chosen topic.
E-learning
Other requirements
Elaboration of the project.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
1) Introduction to foundry - the concept of model, mould, casting, foundry and its form yesterday and today
2) Moulding mixtures and its components - refractory materials, binders, additives, I. - IV. generation of MM
3) Physical methods of mould bonding - magnetic mould, vacuum moulding, EFF-SET technology
4) Precision casting technology - investment casting, metal mould casting (gravity, pressure, low pressure)
5) Fluidity, gating system - influences on liquid metal fluidity and castability, types of gating system, GS designing
6) Gases in metal - dissolution of gases in metals, degassing, exogenous bubbles, gas conditions in the mould, endogenous bubbles
7) Crystallization and solidification, volume changes - homogeneous and heterogeneous nucleation, shrinkage of metal on solidification and cooling, thermal axis, thermal knot, feeders
8) Stresses in castings - exogenous and endogenous stresses, casting deformation, cold and hot cracks
9) Casting steels - basic characteristics, properties, material specifics
10) Casting of cast iron - basic characteristics, properties, material specifics, inoculation, modifications
11) Alloys of non-ferrous metals - basic division (according to main element, melting temperature, density, etc.), alloys of Cu, Mg, Zn
12) Aluminum alloys - basic division of silumines, duralumines, hydronalia, properties of individual groups, grain refinement and modifications of silumines
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
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