Technological Properties of Materials
FSI-WTVAcad. year: 2019/2020
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.
Learning outcomes of the course unit
Knowledge and skills in the area of assessing, affecting, and applying the basic technological properties of metals and alloys, preferably with the materials viewpoint being applied. Capability for creative work or cooperation in the area of the given manufacturing technology.
BUM, 3SV - general foundation
2VT, WTC - technological foundation
Recommended optional programme components
Recommended or required reading
MIELNIK, Edw.M.: Metalworking Science and Engineering. 1st.ed. New York, London, Mc Graw-Hill, 1991, 976p. ISBN 0-07-041904-3.
FOREJT, M., PÍŠKA, M. Teorie obrábění, tváření a nástrojů. VŠ skriptum. Brno: CERM, 2006. s. 230. 1. vyd.. ISBN 80-214-2374-9.
VETIŠKA, A., Teoretické základy slévárenské technologie. SNTL Praha / Alfa Bratislava 1972, 388 str., 04-221-72
ASM International. ASM Handbook : Metalworking: Bulk Forming. S.L. Semiatin. 1st edition. Materials Park Ohio : ASM, 2005. ISBN 0-87170-708-X.
PETRŽELKA,J., SONENEK, P.: Tvařitelnost kovových materiálů (upravená verze III). Učební texty, VŠB-TU Ostrava, 2007
HRIVŇÁK, I.: Zváranie a zvaritelnosť materiálov, STU Bratislava, 2009, 486 s.
ASM Handbook, Vol. 6A: Welding Fundamentals and Processes, ASM International, Ohio,2011, 920 s.
Planned learning activities and teaching methods
The course is taught through lectures explaining the basic principles and theory of the discipline. Teaching is suplemented by practical laboratory work.
Assesment methods and criteria linked to learning outcomes
Semestral examination (written exam covering the whole scope of the given problematic). Assessment based on ECTS criteria.
Language of instruction
To provide students with information and data from the areas of castability, formability, weldability, and machinability, with primary focus on materials aspects and interactions.
Specification of controlled education, way of implementation and compensation for absences
Checking the knowledge, skills and abilities gained after the completion of individual thematic areas (qualifying exam, written test, etc.).
Type of course unit
26 hours, optionally
Teacher / Lecturer
4. 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 (prof. j. Roučka)
4. Basic physical characteristics of melts (structure, surface tension, viscosity, fluidity). The essence of castability; materials and technological aspects
5. Basic physical characteristics of moulds (heat conductivity, thermal conductivity, heat accumulation. Effect of metal and mould properties on flow and running property. Physical-chemical events on the metal/mould interface
6. Shrinkage of metals and alloys (types, causes, decisive factors, consequences). Stress in castings (types, causes, decisive factors, consequences, possibilities of intervening).
Formability (prof. M. Forejt)
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 (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)
13 hours, compulsory
Teacher / Lecturer
1st Machining - kinetic learning machinability through long-term and short-term tests.
3rd Forming 1
4th Forming 2
5th Evaluation of a particular weld joint (integrity, structure, hardness)
6th Weldability tests - an overview