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KOS.FS - fakultní nadstavba
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Technology I. (E331067)
Katedra:ústav strojírenské technologie (12133)
Zkratka:Schválen:21.04.2008
Platí do: ??Rozsah:3+2
Semestr:*Kredity:5
Zakončení:Z,ZKJazyk výuky:EN
Anotace
Foundry properties of metals. Treatment. Pouring. Casting solidification. Moulding and core making. Thermal treatment. Plastic deformation. Division of forming processes. Semi-products, heating-up. Cutting. Cold and hot forming. Welds. Weldability. Weldment testing. Thermal cutting. Soldering and brazing. Surface treatment. Plastics and powder processing. Laboratories.
Osnova
1.Casting. Casting properties. Metal-mould interaction. Solubility of gases. Contraction during solidification and cooling. Segregation.
2.Metallurgy of casting alloys. Metallurgy of grey iron. Melting and inoculation of grey irons. Production of malleable iron. Production of ductile iron. Production of white iron and chilled iron.
3.Metallurgy of cast steels. Non-ferrous alloys for casting. Methods of mould and core production. Green sand moulding. Boxlees moulding. Impulse moulding. Production of moulds and cores from sands with sodium silicate binder. Shell moulding process. Methods of hot box and cold box. Investment casting. Lost foam process. Vacuum moulding.
4.Pouring. Gating system. Centrifugal casting. Gravity die casting. Pressure die casting. Low pressure die casting. Continuous casting. Vacuum casting. Solidification of castings. Riser design. Design of castings.
5.Metal forming. Benefits and disadvantages of metal forming. Classification of metal forming processes. Hot forming and cold forming. Recrystalization. Flow resistance. Mechanism of plastic deformation. Deformation modes. Laws of plastic deformation. Basic technical parameters of forming machines. Classification of metalworking processes. Materials used for forming. Semi-finished products. Preparatory of material - separating. Heating. Equipment for heating of material.
6.Technology of bulk metal forming. Open die forging. Machines for open-die forging. Closed-die forging. Machines for closed-die forging. Extrusion. Calibration. Embossing. Coining. Rod and wire drawing.
7.Rolling of metal sheets and plates, bars, sections and tubes. Sheet metal working. Separating. Blanking. Piercing. Bending. Deep drawing. Spinning. Stretching.
8.Powder metallurgy. Processing of polymers and composites. Properties of polymers. Basis of organic chemistry. Classification of polymers. Viscoelastic properties of polymers. Polymerisation. Polycondensation. Composites. Reinforcement. Matrix. Processing of polymers - injection moulding, extrusion, compression moulding, transfer moulding, vacuum thermoforming, blow moulding, rolling, calendering.
9.Classification of welding processes. Types of welds. Technology of welded structures. Welding metallurgy. Weldability of metallic materials.
10.Weldability of steels, gray iron, non-ferrous alloys. Cracks in welds. Gas welding.
Soldering and brazing.
11.Arc welding. Arc-welding machines. Electrodes. Submerged arc welding. MIG, MAG and TIG welding. Electro-slag welding. Thermal cutting of material.
12.Resistance welding. Stress and deformation of welds and welded structures. Inspection of welds. Basic weld symbols on the drawings. WPS and WPAR.
13.Surface treatments and coatings. Corrosion and protection. Types of corrosion degradation.
14.Technology of surface treatments and coatings. Surface preparation. Mechanical modification of surface. Chemical modification of surface. Metal protective coatings. Non-metal protective coatings. Paint coatings. Environment protection.


Osnova cvičení
1.Introductory excercise - safety and health regulations + revision of diagram Fe - Fe3C
2.Examples of surface coating technologies, technological procedures - report 1.
3.Report 1 - presentation
4.Diagram of uniaxial tensile and compression testing - report 2.
5.Deformation resistance and closed die forging
6.Deep drawing of rectangular box. Submitting of report 2.
7.Welding - basic methods
8.Nondestructive testing
9.Special welding method - laser. Submitting of report 3.
10.Testing of moulding materials - the first part of report 4
11.Defects of castings - the second part of report 4
12.Theory of riser design, simulation of casting process and presentation video recordings. Submitting of report 4.
13.Assessment test
Literatura
Král, Bednář, Čermák, Suchánek : Engineering Technology I. ČVUT Praha 2009
Novotný, J. a kol.: Technologie I. ČVUT Praha
Šanovec, J. a kol.: Technologie I. - návody ke cvičení ČVUT Praha
Němec, M., Suchánek, J., Šanovec, J.: Základy technologie I. ČVUT Praha
Herman, A.: Technologie I. - soubor otázek ČVUT Praha
Požadavky
Fundamentals of Technology 1
Participation in seminaries and laboratories - 90%
Preparation of all the technical reports
Klíčová slova
technology casting sheet metal forming bulk forming welding surface treatment Plastic and composite processing
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