618-1806/01 – Metalcasting (S)

Gurantor departmentDepartment of Metallurgy and FoundryCredits5
Subject guarantordoc. Ing. Jiří Hampl, Ph.D.Subject version guarantordoc. Ing. Jiří Hampl, Ph.D.
Study levelundergraduate or graduateRequirementChoice-compulsory
Year2Semesterwinter
Study languageCzech
Year of introduction2012/2013Year of cancellation
Intended for the facultiesFMTIntended for study typesFollow-up Master
Instruction secured by
LoginNameTuitorTeacher giving lectures
BED47 doc. Ing. Vlasta Bednářová, CSc.
CAG37 Ing. Michal Cagala
HAM33 doc. Ing. Jiří Hampl, Ph.D.
HAN47 Ing. Aleš Hanus, Ph.D.
JEL40 prof. Ing. Petr Jelínek, CSc.
LIC03 doc. Ing. Petr Lichý, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 3+3
Combined Credit and Examination 18+0

Subject aims expressed by acquired skills and competences

Student will be able: -to describe basic types of foundry moulds and their use for casting manufacture; -to know principles of using different types of moulding mixtures, their properties and application for particular casting kinds; -to know a process of designing and calculating the gating systems; -to explain principles of positive and negative directional solidification; -to solve static and dynamic uplift pressure of moulds and cores; -to explain the formation of the most important casting defects; -to know principles of casting manufacturing methods using in particular the increased pressure on metal surface, of shell moulding, and investment casting.

Teaching methods

Lectures
Seminars
Individual consultations
Tutorials
Experimental work in labs
Project work

Summary

Lectures: 1.Foundry mould-core, sand mixtures of the I. to IV. Generation 2.Gating of castings, calculation of gatings, 3.Upward pressure of mould and of cores, crystallization and solidification of castings. 4.Changes in volume of metal at solidification and elimination of the thermal nodal sites in casting 5.Heat transmission between casting and mould 6.Defects in castings, running property of liquid metal, condensing zone of water and its consequences on the surface defects 7.Defects due to stress (overflows, scabs), penetration of liquid metal into mould, surface roughness of castings. 8.Failed compactness of castings, the mechanism of initiation of fissures and cracks. Foundry stress 9.Fabrication of castings by application of elevated pressure at the liquid- metal surface 10.Specific methods of fabrication of castings, vacuum aspiration, method of pouring precise castings 11.Steels for castings. Carbon and alloyed steels. 12.Graphitizing alloys of iron, melting routes 13.Design of castings, principles of optimum design 14.Nodular cast iron, metallurgy,

Compulsory literature:

SCHIEG,F.P. : Technology of Metalcasting. American Foundry Society,Des Plaines,IL 2003

Recommended literature:

Articles in professional journals, papers of conferences, research reports, theses.

Way of continuous check of knowledge in the course of semester

Individual tasks will be awarded with a weekly schedule. The tasks will work during the exercises. Students of combined study will send their analysis of literature through e-mail. There is a 3 points penalty for each week of delay of tasks checking in after the deadline.

E-learning

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

Další požadavky na studenta

There are not additional requirements on students in the field of this subject.

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

Lectures: 1st Foundry mold-core, forming a mixture of first-IV.generace. 2nd Silt casting system, the calculation of gating, and pressure vacuum system 3rd Lift molds and cores, solidification and crystallization. Homogeneous and heterogeneous nucleation, primary crystallization, segregation (odmíšeniny) and segregations. 4th Volume changes of the metal during solidification and disposal of heat units in a cast 5th Heat transfer between the casting and form 6th Casting defects, fluidity of metals, water condensation zone and its implications for surface defects. 7th Defects of the tension (výronky, Clean finish), penetration of metal into a mold, casting roughness. Exogenous and endogenous bubble, quills. 8th Violation of related castings, the mechanism of cracks and fissures. Foundry stress. 9th Casting effect of increased pressure on the metal surface. 10th Spec method of casting, vacuum suction, natuhávání with discharge, methods for casting precision castings. 11th Cast steel. Carbon and alloy steel. Metallurgy production. 12th Graphitizing alloy of iron metallurgy production. 13th Design considerations, the principle of optimal design. 14th Nodular cast iron, metallurgy, nonferrous metals. Criteria for evaluation of iron, structure diagrams.

Conditions for subject completion

Full-time form (validity from: 2012/2013 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Exercises evaluation and Examination Credit and Examination 100  51
        Exercises evaluation Credit  
        Examination Examination  
Mandatory attendence parzicipation:

Show history

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Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner