Course code MašZ4031

Credit points 4.50

Metal Processing II

Total Hours in Course120

Number of hours for lectures8

Number of hours for seminars and practical classes24

Number of hours for laboratory classes16

Independent study hours72

Date of course confirmation17.02.2015

Responsible UnitInstitute of Engineering and Energetics

Course developer

author lect.

Mārtiņš Ziemelis

Mg. sc. ing.

Prior knowledge

MašZ4030, Metal Processing I

Replaced course

MmehB017 [GMMEB017] Metal Processing II

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

Knowledge of metal cutting processes and its parameters – Test nr. I and laboratory works; Knowledge of metal cutting machines, cutting tools and metalworking technological processes – Test nr. II and laboratory works; Knowledge of the technological bases of mechanical engineering – Test nr. III.
Skills - capable of evaluating the geometrical parameters of cutters and evaluating the impact of the cutting process on the surface quality - laboratory works.
Competences - it is possible to evaluate the geometrical parameters of the cutters and evaluate the impact of the chip separation process on the quality of the treated workpiece surface. Assessment - laboratory works.
The effect of cutting force on the chip separation process can be assessed - laboratory work. Gear cutting parameters can be calculated and abrasive materials for surface grinding can be selected - laboratory works.

Course Content(Calendar)

1. Cutting process and its parameters. Types of processing. Cutting in motion processing – 2h.
2. Geometry of cutting tools: planes, surfaces, angles. The size and impact of the angles on the processing process – 2h.
3. Working conditions of cutting instruments and requirements for cutting instrument materials – 2h.
Test Nr I. – The theoretical basis of cutting process – 1h.
4. High speed steel, its characteristics and uses. Marking according to EN and LV standards – 2h.
5. Metal-ceramic and mineral-ceramic cutting instrument materials. Their characteristics and uses – 2h.
6. Special hard cut instrument materials: synthetic diamonds and cubic boron nitrite – 2h.
7. Choose of cutting tools according to ISO recommendations – 2h.
8. Physical bases of metal working. Material resistance to cutting, cutting forces and their determination. Permissible cutting speed – 3h.
9. Classifications of metal cutting machines, precision classes, drive – 2h.
10. Turning, cutting tools, appliances and machines – 2h.
11. Drilling, expanding and shedding works, cutting tools, appliances and machines – 2h.
12. Milling works, cutting tools, appliances and machines. Kinetics and dynamics of the milling process – 2h.
13. Oblique cutting process, tools and machines – 2h.
Test Nr II. – Metalworking technological processes – 1h.
14. Metal abrasive machining. Construction and marking of grinding wheels. Grinding works and machines. Specific metalworking types – 2h.

Test Nr III. – Technological bases for mechanical engineering – 1h.

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 3 tests - 32 hours.
Development of detailed technological processes - 40 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.


Compulsory reading

1. Avotiņš J. Metālapstrāde. Jelgava: LLU, 2009. 400 lpp.
2. Avotiņš J. Metālapstrāde. Kursa darbs "Tehnoloģisko procesu izstrāde": metodiskie norādījumi. Jelgava: LLU. 2005. 90 lpp.
3. Vērdiņš G., Dukulis I. Materiālu mācība. Jelgava: LLU, 2008. 240 lpp.

4. Avotiņš J. Konstrukciju materiālu tehnoloģija 2. daļa: Apstrāde griežot. Jelgava: LLU. 2001. 221 lpp.

Further reading

1. Bunga G., Geriņš Ē. Apstrādes ar atdalīšanu tehnoloģijas. Rīga, 2007. 90 lpp.

2. Machining Technology Tool Catalogue. FRANKEN G und H & Co. KG. Germany. 2005.

Periodicals and other sources

1. Journal of Mehanical Engineering Science. ISSN: 0022-2542.


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