LV EN RU DE FR

Materials and Materials Processing

Course developer

Course abstract

The aim of the course is to obtain knowledge about classification of constructional materials, physical - mechanical properties, structure and application. Obtain alloy and non-ferrous metals properties and application as well as production of casting and metal pressing modification and technology. Learn theoretical processes, equipment and types of welding. Theoretically and practically learn metal cutting machines, equipment, tools and technology.

Learning outcomes and their assessment

1. Knowledge - of theoretical and empirical studies in material and metalworking - Tests; Knowledge: in advantages and disadvantages of metal construction or machining - Test.
2. Skills - to make practical calculations for metal constructions and their costs, as well as knowing material grades to evaluate their mechanical properties and applications - laboratory works; knowledge in physically properties of material construction, mechanic and structures - Test and laboratory works; skills in decipher the marks of alloy steels and non-ferrous metals and their alloys - Test and laboratory work.
3. Competence - in metal processes, equipment and tools for metal casting - Test and laboratory works; knowledge in welding processes, equipment, tools and choice of technical parameters - Test and laboratory works; knowledge in metal cutting machines and abrasive materials and their applications – Test and laboratory works.

Course Content(Calendar)

LECTURES:
1. Classification of materials. Structural materials physically - mechanical properties and structure. 2 hour
2. Metal classification and properties. Test - 1hour.
3. Alloy theory. Iron and its alloys. 2 hour
4. Theory of alloy. Test – 1 hour.
5. Heat-treatment theory. Basics of heat treatment technology. 2 hour
6. Metal heat-treatment. Test – 1 hour.
7. Strengthening the surface of steel parts. 2 hour
8. Metal mechanical properties. Test – 1 hour.
9. Alloy steel. Non-ferrous metals and their alloys. 2 hour
10. Ferrous and nonferrous metals. Test - 1 hour.
11. Production of castings. General information about casting production. Importance of castings in the engineering industry. 2 hour
12. Metal casting. Test - 1 hour.
13. Type of metal forging. 2 hour
14. Types and applications of metal welding. 2 hour
15. Metal welding. Test - 1 hour.
16. Principles and techniques in riveting. 2 hour
17. Basic concepts for metals cutting. 2 hour
18. Metal cutting machines. 2 hour
19. Abrasive treatment, equipment, instruments, abrasive materials and their application. 2 hour
20. Metal cutting machines und abrasive materials. Test - 1 hour.

LABORATORY WORKS:
1. Brinell hardness test – 1 hour;
2. Rockwell hardness test – 1 hour;
3. Vickers hardness test – 1 hour;
4. Mechanical properties of metals – 1 hour;
5. Iron carbon phase diagram – 1 hour;
6. Microscope MIM-7 – 1 hour;
7. Heat treatment – 2 hours;
8. Marking of alloy steels – 2 hours;
9. Marking of non-ferrous metals – 2 hours;
10. Design and formation of castings. – 2 hours;
11. Metal forging – 2 hours;
12. Manual metal arc welding – 2 hours;
13. Gas metal arc welding – 2 hours;
14. Gas welding – 2 hours;
15. Threading with a lathe – 2 hour;
16. Straight gear milling – 1 hour;
17. Helical gear milling – 1 hour;
18. Tooth cutting with hob cutters – 2 hours;
19. Tooth cutting with shaper – 2 hours;
20. Research of abrasive tools – 2hours.

Requirements for awarding credit points

Test type - exam. Examination tasks consist of: test about theoretical study; practical task on topics learned from laboratory works. All tests and laboratory work must be credited.

Description of the organization and tasks of students’ independent work

Preparation for 8 tests – 66 hours.
Home assignment No 1. Describe chemical and mechanical properties of given metals (at least two pages, an electronic or written version) – 8 hours;
Home assignment No 2. Draw iron carbon diagram and describe structures (at least two pages, an electronic or written version) – 8 hours;
Home assignment No 3. Describe the types of metal casting (at least six pages, an electronic or written version) – 8 hours;

Home assignment No 4. Describe the types of metal welding (at least six pages, an electronic or written version) – 8 hours.

Criteria for Evaluating Learning Outcomes

Students who have at least assessment 6 in this course of study. The final examination test may not write, and the test rating is compared with the test assessment.

Compulsory reading

1. Walker J.R., Stier K.W. Modern Metalworking. 10th Edition. 2017. 174 p.
2. Shackelford J.F., Alexander V. Materials Science and Engineering Handbook. 3th Edition. Boka Raton etc.: CRC Press, 2001. 1949 p.

3. Callister W.D., Rethwisc D.G. Materials science and engineering. Hoboken, NJ: John Wiley & Sons, 2015. 2014. 905p.
4. Vērdiņš G., Dukulis I. Materiālu mācība. Jelgava: LLU, 2008. 240 lpp.
5. Materiālu mācība. Metodiskie norādījumi laboratorijas darbiem. LLU, Jelgavā, 2004. 62 lpp.
6. Grīnberga M. Materiālmācība galdniekiem. Rīga: Jumava, 2003. 192 lpp.

Further reading

1. Steel: Handbook for Materials Research and Engineering. Vol. 1: Fundamentals. H.-E. Arntz ... [et al.]; edited by Verein Deutscher Eisenhüttenleute. Berlin etc.: Springer; Dusseldorf: Verlag Stahleisen. 1992. 737 p.

2. Modern automotive technology. Fundamentals, service, diagnostics. Ed. R. Gescheidle. Stuttgart, 2006. 688 p.

Notes

Obligatory for students of the bachelor of professional higher education program “Biosystems Machinery and Technologies” studies. 1st year 2nd semester.