Course detail

Technological Properties of Materials

FSI-WTVAcad. year: 2023/2024

Technological properties of materials explained, in particular, on the basis of materials problematic. The technological properties included concern metallic materials (castability, formability, weldability, and machinability). Technological properties of non-metallic materials are incorporated in courses dealing with them.

Language of instruction

Czech

Number of ECTS credits

5

Mode of study

Not applicable.

Guarantor

doc. Ing. Vít Jan, Ph.D.

Department

Institute of Materials Science and Engineering (ÚMVI)

Entry knowledge

Completion of bachelor study of "Material Engineering", basic knowledge of machining, forming, foundry and welding technologies.

Rules for evaluation and completion of the course

Semestral examination (written exam covering the whole scope of the given problematic). Assessment based on ECTS criteria.
Checking the knowledge, skills and abilities gained after the completion of individual thematic areas (protocol checking, written test, etc.).

Aims

To provide students with information and data from the areas of castability, formability, weldability, and machinability, with primary focus on materials aspects and interactions.
Knowledge and skills in assessment, influencing and application of basic technological properties of metals and alloys, especially in the choice of materials and subsequent production technologies. The ability of creative work and cooperation in specific manufacturing technology.

Study aids

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

ASM Handbook, Vol. 6A: Welding Fundamentals and Processes, ASM International, Ohio,2011, 920 s.
ASM International. ASM Handbook : Metalworking: Bulk Forming. S.L. Semiatin. 1st edition. Materials Park Ohio : ASM, 2005. ISBN 0-87170-708-X.
MIELNIK, Edw.M.: Metalworking Science and Engineering. 1st.ed. New York, London, Mc Graw-Hill, 1991, 976p. ISBN 0-07-041904-3.

Recommended reading

FOREJT, M., PÍŠKA, M. Teorie obrábění, tváření a nástrojů. VŠ skriptum. Brno: CERM, 2006. s. 230. 1. vyd.. ISBN 80-214-2374-9.
HRIVŇÁK, I.: Zváranie a zvaritelnosť materiálov, STU Bratislava, 2009, 486 s.
PETRŽELKA,J., SONENEK, P.: Tvařitelnost kovových materiálů (upravená verze III). Učební texty, VŠB-TU Ostrava, 2007
VETIŠKA, A., Teoretické základy slévárenské technologie. SNTL Praha / Alfa Bratislava 1972, 388 str., 04-221-72

Classification of course in study plans

  • Programme N-MTI-P Master's 2 year of study, winter semester, compulsory-optional
  • Programme N-SLE-P Master's 1 year of study, winter semester, elective

Type of course unit

 

Lecture

26 hod., optionally

Teacher / Lecturer

doc. Ing. Vít Jan, Ph.D.

Syllabus

Lectures
Machinability (prof. M. Píška)
1. Definitions, decisive factors, criteria and standards of machinability
2. Groups and classes of machinability of engineering materials
3. Cutting as a dynamic process of hardening and de-hardening; dynamic recrystallization.
Plastic flow in material under high strain rate. Interaction between workpiece and tool materials

Castability (assoc. prof. J. Roučka)
4. Physical properties of the molten metals and alloys, surface tension of liquids, measurement of surface tension, influence of chemical composition of metal and temperature to the surface tension of melts.
5. Ideal and real liquid, fluid flow, turbulence in fluid flow, viscosity of molten metals and alloys, losses during fluid flow.
6. Wettability of casting molds, thermal accumulation of casting molds, penetration of metals and alloys, fluidity of melts, fludity tests, volume changes of metals and alloys during solidification.

Formability (dr. K. Podaný)
7. Physical essence of plastic deformation and hardening. Formability of metals and alloys
8. Theory of plastic deformations and principles of metal-forming
9. Conditions for the appearance of plastic deformation, analysis of deformation processes.

Weldability (assoc. prof. V. Jan, prof. R. Foret)
10. The definition of weldability. Temperature and deformation during the welding cycle. Classification of cracking during welding.
11. Structure and properties of welded joints and their heat treatment
12. Weldability of selected groups of steels and cast irons
13. Welding of selected non-ferrous alloys (aluminum, copper, nickel, titanium)

Laboratory exercise

13 hod., compulsory

Teacher / Lecturer

doc. Ing. Vít Jan, Ph.D.

Syllabus

1st Machining – kinetic learning machinability through long-term and short-term tests.
2nd Castings – technological fluiditiy tests, determination of density of metals and alloys, verification of the influence of cooling rate and atmospheric pressure on density of aluminium alloys.
3rd Forming 1
4th Forming 2
5th Evaluation of a particular weld joint (integrity, structure, hardness)
6th Weldability tests - an overview