The subject of the discipline: the processes of laser radiation interaction with substance and phenomena that occur under such interaction.
The course is the basis for professional courses such as "Laser dimensional processing technology", "Laser surface treatment technology", "Laser technological equipment", "Special elements and equipment of laser technological complexes". In addition, the course deals with laser cutting issues, which is also a separate professional course.

CONTENT OF EDUCATIONAL MATERIAL

Section 1. Main characteristics of concentrated energy flows
Theme 1.1 The properties of laser radiation
Theme 1.2 Time, energy and spatial parameters of laser radiation
Theme 1.3 Focusing of laser radiation

Section 2. Absorption of laser radiation
Theme 2.1 The absorption coefficient
Theme 2.2 Management of the process of absorption

Section 3. Characteristics of the laser source
Theme 3.1 Characteristics of a laser source
Theme 3.2 Absorption of laser radiation by metals
Theme 3.3 Absorption of laser radiation by semiconductors and dielectrics

Section 4. Setting of problems of heating by laser radiation
Theme 4.1 Features of the laser heating problems. Differential equation of thermal conductivity, boundary conditions.
Theme 4.2 partial decisions of the heat conduction problem.
Theme 4.4 Critical power density
Theme 4.6 Movable heat source. Fast moving heat source

Section 5. Ablation of materials under the action of laser radiation
Theme 5.1 Patterns of materials ablation under the action of laser radiation.
Theme 5.2 Kinetics of the laser ablation

Section 6. Existing theoretical models of laser ablation
Theme 6.1 Thermal destruction mechanism
Theme 6.2 Phenomenological model of destruction

Section 7. Features of metals melting under the action of laser radiation
Theme 7.1 Stefan problem
Theme 7.2 Typical forms of the melt keyhole and conditions for their occurrence

Section 8. Physical features of laser cutting of materials
Theme 8.1 General characteristics of laser cutting
Theme 8.2 Characteristics of laser cutting of metals by continuous radiation
Theme 8.3 Characteristics of laser cutting of metals by Q-switched lasers

Section 9. Technological characteristics of the melt and blow laser cutting
Theme 9.1 Groups of metals
Theme 9.2 Cutting quality of various metals
Theme 9.3 Influence of power parameters on dimensional cutting characteristics
Theme 9.4 Influence of optical parameters on dimensional cutting characteristics
Theme 9.5 Influence of gas-dynamic parameters on dimensional characteristics of cutting

Methodical instructions for laboratory work (Ukr, PDF)
Laboratory work № 1. Construction and basic elements of solid and gas lasers
Laboratory work № 2. Сontrol of energy parameters of the laser technological unit. The efficiency of the laser.
Laboratory work № 3. Study of time parameters of laser radiation. Selection of processing modes
Laboratory work № 4. Determination of absorbing ability of laser radiation by materials
Laboratory work № 5. Measurement of the spot diameter of focused of laser radiation and distribution in it

Methodical instructions for practical classes (Ukr, PDF)
Theme number 1. Properties of laser radiation
Theme № 2. Focusing of laser beam
Theme № 3. Absorption by metals and semiconductors
Theme № 4. Laser heating. One-dimensional model. Spatial model. Thin plate
Topic № 5. Critical power density
Theme number 6. Movable laser source, fast moving laser source
Theme № 7. Melting of metals under the action of laser radiation
Theme № 8. Thermal mechanism of ablation
Theme № 9. Phenomenological model of the laser sizing
Theme № 10. Laser cutting of metals by continuous radiation
Theme № 11. Laser cutting of metals by Q-switched lasers
Theme № 12. Influence of radiation parameters on dimensional characteristics of cutting

Methodical instructions for independent work of students-1 (Ukr, PDF)
Methodical instructions for independent work of students-2 (Ukr, PDF)