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Metal Processing Machines

Course developer

Replaced course

MmehB015 [GMMEB015] Metal Processing Machines

Course abstract

The aim of the course is to provide a set of theoretical knowledge and practical skills on the classification and accuracy of metalworking machines; machine structure, actuators and actuators; division of machines by actuator, drive and control of machines; CNC machine control bases, coordinate reference systems and datum points; CNC program preparation. Master CAM programming

Learning outcomes and their assessment

Knowledge of technological processes, actuators and actuators and drives of metalworking machines. Assessment – test.
Skills to choose the optimal metalworking machines and develop machining programs. Assessment – test.

Competence in selecting the most rational machines and evaluating programs. Assessment - test and laboratory work reports.

Course Content(Calendar)

1. Classification of metalworking machines and their role in mechanical engineering - 2h.
2. Precision, rigidity and dynamic stability of metalworking machines - 2h.
3. Classification of metalworking machines according to the provided accuracy. Accuracy standards - 2h.
4. Technological task of metalworking machines. Surface forming methods and movement movements - 2h.
5. Test: (Classification of metalworking machines) - 1h.
6. Simple and compound movements. Actuators and their strokes. Metalworking machine program - 2h.
7. Structure of the executive part of metalworking machines. Actuators and their strokes. Classification by executive part - 2h.
8. Single-coordinate and double-coordinate metalworking machines. Analysis of their movements - 1h.
9. Three, four and five coordinate metalworking machines - 1h.
10. Five, six and multi-coordinate metalworking machines - 1h.
11. Test: (Machines on coordinate axes) - 1h.
12. Rotary and directional actuators for metalworking machines. General concepts and requirements - 2h.
13. Drive of metalworking machines. Drive structure, structure and types. Drive power - 2h.
14. Drives for continuous speed control of metalworking machine drives - 1h.
15. Test: (Drive of metalworking machines) - 1h.
16. Principles of CNC machine control - 2h.
17. G- and M group functions, their choice - 2h.
18. Master CAM program structure - 2h.
19. Development of Master CAM programs using simulation equipment - 2h.

20. Test: (CNC control machines) - 1h.

Requirements for awarding credit points

Systematic work and timely laboratory work.
Successfully written tests.
Overdue lessons have been processed.

Exam.

Description of the organization and tasks of students’ independent work

Prepare for 4 tests - 38h.
1. homework. Describe the differences of lathe machines according to their classification (submitted electronically or in writing.) – 17h.

2. homework. Describe the differences of milling machines according to their classification (submitted electronically or in writing.) – 17h.

Criteria for Evaluating Learning Outcomes

Successfully written tests.
Developed and defended laboratory works.

Homework submitted.

Compulsory reading

1. Urbahs A., Smirnovs A. CAM tehnoloģijas transportmašīnbūvē. Mācību līdzeklis. Rīga: RTU izdevniecība, 2009. 108 lpp.
2. Avotiņš J. Metālapstrāde. Jelgava: LLU, 2009. 400 lpp.

3. Krizbergs J. Datorizētā projektēšana (CAM). Rīga: RTU, 2006. 270 lpp.

Further reading

1. Mašīnbūves iekārtas. Kursa projektēšana. Rīga: Zvaigzne, 1991. 324 lpp.

Periodicals and other sources

1. Journal of MehanicalEngineeringScience.London: Institution of MechanicalEngineers. 1959- ISSN: 0954-4062 eISSN: 2041-2983 [skatīts 06.12.2011.]. Pieejams SAGE datubāzē: http://pic.sagepub.com/

Notes

Compulsory course for students of the professional bachelor study program “Machine Design and Production”.