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Metal Processing

Course developer

Course abstract

Students gain knowledge about the properties of materials used in mechanical engineering and the peculiarities of processing. Get acquainted with metalworking techniques by heating in pressure treatment and chip removal by cutting. Gains knowledge of metal welding and soldering. Is able to use measuring instruments and evaluate the quality of products.

Learning outcomes and their assessment

• knowledge and understanding of theoretical and empirical research in materials science and metalworking; • skills to formulate, critically evaluate the advantages and disadvantages of the chosen type of metal construction or treatment, as well as to formulate conclusions corresponding to the results; • competence to practically perform calculations for metal structures and their costs, as well as to know their material properties and to evaluate their mechanical properties and application possibilities.

Course Content(Calendar)

1. Classification of materials. Alloy theory. Basic structures of iron and its alloys. -1h.
2. Theory of heat treatment, technology, types. Chemical heat treatment. Diffusion metallization. -1h.
3. Alloy steels and alloys. Cutting tool steels. Non - ferrous metals and their alloys. -1h.
4. Basic concepts of technical measurement in mechanical engineering. Classification of measurement methods. -1h.
5. Micrometric instruments. Mechanical measuring instruments. Clock type indicators. Optical measuring instruments. -1h.
6. Accuracy in mechanical engineering. -1h.
7. General information on the production of castings. Manufacture of castings in molds. Advanced casting methods. -1h.
8. Theoretical bases of metal welding. Connection quality. -1h.
9. Soldering of metals and choice of application. Devices and materials. -1h.
10. Cutting process and its parameters. Cutter geometry. Cutting tool materials. -1h.
11. Resistance of materials to cutting. Selection of cutting mode. Classification and drive of metal cutting machines. -1h.
12. Turning. Lathes. Lathe cutters. Lathes. Turning works. -1h.
13. Drilling. Milling. -1h.
14. Gear production. Tooth cutting machines and cutting tools. -1h.
15. Surface finishing methods. -1h.
16. Test -1h.

Requirements for awarding credit points

Developed and defended laboratory works; graphoanalytical calculation works submitted and credited within the term; written tests are written. Obl. course - exam. Free choice - test with a mark.

Description of the organization and tasks of students’ independent work

Preparation for the test - 48 hours.

Criteria for Evaluating Learning Outcomes

• developed and defended laboratory works;
• tests for the theoretical course are included;
• the number of delayed activities does not exceed 10 ... 15% of the total number.
• Test

Compulsory reading

1. Avotiņš. J. Konstrukciju materiālu tehnoloģija. 1. daļa. Metālu karstā apstrāde. Jelgava: LLU. 2000. 127 lpp.
2. Avotiņš J. Konstrukciju materiālu tehnoloģija. 2. daļa Apstrāde griežot. Jelgava: LLU, 2001. 221 lpp.
3. Avotiņš J. Konstrukciju materiālu tehnoloģija. 1.daļa. Grafo analītiskie darbi metālu karstajā apstrādē. Jelgava: LLU, 2004. 90 lpp.
4. Avotiņš J. Konstrukciju materiālu tehnoloģija. 2. daļa. Apstrāde griežot. Laboratorijas darbi Jelgava: LLU, 2004. 145 lpp.

Further reading

1. G.Vērdiņš, I.Dukulis. Materiālu mācība. Jelgava: LLU, 2008. 240 lpp.
2. Pētersons O., Priednieks J. MIG/MAG metināšana. Rīga, AGA SIA, 2005. 107 lpp.
3. Steel A.Handbook for Materials Research and Engineering Vol. 1. Fundamentals. Berlin etc.: Springer; Düsseldorf: Verl. Stahleisen, 1992. p.p. 737.

Notes

Study course in full-time and part-time studies of the professional higher education study program "Home environment in education".