Course detail
Technology (Metallurgy, Welding, Casting)
FSI-WTC Acad. year: 2021/2022 Summer semester
Metallurgy of the iron alloys. The basic technical information about production of iron from ores in the coke blast furnaces. The present production of steel in the oxygen converter and in electrical arc and induction furnaces. The main technologies used in a steel production. The continuous casting and ingot casting. The technology of grey, ductile and malleable cast irons. The furnaces used to the steel and cast iron production. Metallurgy of the non-ferrous alloys.
Types of foundry moulds. Moulding materials, moulding methods both for making moulds and cores. Non-permanent moulds according to the binders used – 1st – 3rd generation. Technology of permanent moulds. Pouring, solidification and cooling of the metals. Finishing operations and heat treatment of the castings. Quality control and simulations used in casting production. Additive technologies in foundry processes.
Welding and weldability of materials. The welding technologies, manual, automatic and arc welding, additional materials. The welding of ferrous metals and non-ferrous metals and alloys. The repair welding. The defects in metallurgical, foundry and welding processes.
Supervisor
Department
Learning outcomes of the course unit
The course gives the possibility to obtain the knowledge about the following technologies: metallurgy, foundry and welding of ferrous and non-ferrous materials. In each of these technologies is the attention devoted to the kind of raw materials, semi-product, melting furnaces, machinery, quality and control of processes and also to the final product. The graduate obtains the possibility of an orientation in the present (contemporary) production technologies of metals.
Prerequisites
Universal knowledge and foundation knowledge of mathematics, physics and chemistry from secondary school
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
Condition for awarding the course unit credit: Having done all the assigned topics in exercises. Examination has a written and an oral part .
Language of instruction
Czech
Aims
The aim is to obtain the knowledge about the following technologies: metallurgy, foundry and welding of ferrous and non-ferrous materials. In each of these technologies is the attention devoted to the kind of raw materials, semi-product, melting furnaces, machinery, quality and control of processes and also to the final product.
Specification of controlled education, way of implementation and compensation for absences
Compulsory attendance at exercises. Absence from exercises is resolved individually.
The study programmes with the given course
Programme B-ZSI-P: Fundamentals of Mechanical Engineering, Bachelor's
branch MTI: Materials Engineering, 3 credits, compulsory
Type of course unit
Lecture
26 hours, compulsory
Teacher / Lecturer
Syllabus
1. Technology of cast iron production in coke blast furnace, steel production in oxygen converter and in electrical furnaces.The continuous and ingot casting technologies
2. Technology of grey, ductile and special cast irons production. Metallurgy of the non-ferrous alloys. Trends in mettalurgy of foundry alloys
3. Introduction into history of casting technologies. basic principles of making castings.
4. Categories of foundry moulds. Non permanent moulds according to the binders used (1st – 3rd generation)
5. Technology of pouring into permanent moulds
6. Metal pouring, gating systems. Casting solidification and cooling.
7. Volumetric changes during solidification. Elimination of hot spots in casting.
8. Simulation of the foundry processes. Additive technologies in foundries.
9. Finishing operations and heat treatment of castings
10. Welding technologies: manual, automatic
11. Thermal cutting technologies and additive materials
12. Weldability of steels, irons and non-ferrous materials
13. Reclamation welding. Metallurgical, foundry and welding defects. Classification systems.
Laboratory exercise
13 hours, optionally
Teacher / Lecturer
Syllabus
1. Exercise to: cast iron production in coke blast furnace, oxygen converter and electrical furnaces.
2. Exercise to: metallurgy of the ferrous and non-ferrous alloys.
3. Exercise to: basic foundry technologies
4. Exercise to: non-permanent moulds – examples
5. Exercise to: pouring into permanent moulds
6. Exercise to: gating systems
7. Exercise to: hot spots in casting and their elimination
8. Exercise to: simulation of foundry processes.
9. Exercise to: casting quality control
10.Excercise to: welding technology, mechanical properties of welds and tesing
11. Exercise to: cutting by oxygen and plasma
12. Exercise to: weldability of different materials
13. Exercise to: classification systems of the welding defects.