LV EN RU DE FR

Metal Processing Technology and Design I

Course developer

Prior knowledge

MatZ4012, Material Science (Construction Materials)

Replaced course

MašZ3036 [GMAS3036] Metal Processing Technology and Design I

Course abstract

The aim of course is to provide set of practical skills of casting and forging in machinery engineering; processing types and products; Welding process and equipment for electrical, gas and pressure welding, technology and materials, theory of material cutting process; metal cutting machinery, equipment, tools and technology.

Learning outcomes and their assessment

1. Know the technological processes of metals casting, equipment and tools — test nr. I and laboratory works;
2. To know the welding processes, equipment, tools and the technical parameters: tests nr. II and laboratory works.
3. Able to apply the most appropriate metalworking technology for work - practical works.

Course Content(Calendar)

Full time intramural studies:
LECTURES:
1.Production of castings. General information about casting production. Importance of castings in the engineering industry. Production of castings in moulding moulds. Building materials, equipment and technology – 1hour;
2.The latest types of casting production: shell molding, evaporative-pattern casting, die casting and pressure die casting – 1hour;
3.Theoretical fundamentals of metal forging. Plastic deformation. Blank heating for metal forging. Unwanted effects in heating. Heating temperature interval – 1hour;
4.Technological processes of metal forging: rolling, stretching and punching. – 1hour;
5.Production of forging. Free forging, work tools, equipment and technology. Metal volume punching and sheet stamping – 1hour;
6.Test – Casting and forging – 1hour;
7.Metal welding. Basics of welded joints. Welding joints and seams – 1hour;
8.Possibility of metal welding and its criteria – 1hour;
9.Various metal welding technology and seams creating peculiarity – 1hour;
10.Welding in protective gases. MIG/MAG and TIG process. Impacts and choices of gas. Welding wire – 1hour;
11.Welding power sources, their external curves. Selection and use of power sources – 1hour;
12.Gas welding process. Structure and types of gas flame. Gas welding gas and technology – 1hour;
13.Test – Metal welding – 1hour;
14.Thermal cutting of metals with plasma – 1hour;
15.Thermal cutting of metals with a laser beam – 1hour;
16.Metal soldering, soldering materials and technology – 1hour.

LABORATORY WORKS:
1.Design and formation of castings – 4 hours;
2.Metal forging – 3 hours;
3.Manual metal arc welding – 3 hours;
4.Gas metal arc welding – 3 hours;
5.Gas welding – 3 hours.

PRACTICAL WORKS:
1.Casting – 7 hours;
2.Forging process – 6 hours;
3.MMA welding process – 6 hours;
4.MIG welding process – 6 hours;
5.TIG welding process – 7 hours.

Part time extramural studies:
All topics specified for full time studies are accomplished, but the number of contact hours is one half of the number specified in the calendar.

Requirements for awarding credit points

Test type - exam. All tests work, laboratory work must be carried out. Delayed lectures shall not exceed 20% of the total.

Description of the organization and tasks of students’ independent work

Preparation for 2 tests and laboratory works. – 30 hours.
Homework No 1. Describe the types of metal casting (submit an electronic or written version) – 34 hours; Homework No 2. Describe the types of metal welding (submit an electronic or written version) – 34 hours.

Criteria for Evaluating Learning Outcomes

Students who have at least assessment 7 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. Avotiņš J. Metālapstrāde. Jelgava: LLU. 2009. 400 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.

Further reading

1. Pētersons O., Priednieks J. MIG/MAG metināšana. Rīga: AGA SIA, 2005. 108 lpp. 2. Welding cutting General cataloge. SAF: 2004. 140 p. (Francija, angļu val.)

Notes

Obligatory for students of the bachelor of professional higher education program “Design and Crafts” for wood/ metal technology and design.