| Title |
Mažos galios lazerinio diodo panaudojimo, pjaustant nemetalines medžiagas, tyrimas / |
| Translation of Title |
Analysis of the nonmetallic materials cutting by a low power diode laser. |
| Authors |
Ausmanas, Naglis |
| Full Text |
|
| Pages |
48 |
| Keywords [eng] |
laser diode ; laser cutting ; laser power ; depth of cut |
| Abstract [eng] |
In this master thesis theoretical and practical research were done in cutting nonmetal materials with a low power laser diode. Laser cutting is a technology where laser beam is focused on a cutting material surface which eater melts, evaporates or burns away. For cutting nonmetal materials CO2 laser is usually used which has a power range from 40 to 100 watts. In this research, it is shown the advantages of a laser diode against a CO2 laser. Literature analysis were done and it was found that there are not many articles where laser diode were used to cut nonmetal materials. In this research was used 3-watt power and 450 nanometers wavelength laser diode. This diode were chosen because it is one of the most powerful single laser diodes on the market and it has one of the shortest wavelength. Because of a shorter wavelength the absorption is better and more power could be used for cutting material. Open source software were adapted to control a laser and a 2-axis frame with a computer using G code. Mathematical model for calculating depth of cut were adapted to use it for calculating depth of cut for a rectangle beam shape, which is typical for laser diodes. This model were used to mathematically determine a depth of cut and to compare with a experimental value. PMMA plastic, wood, cotton, and wool fabric and leather were cut with a low power laser diode. |
| Dissertation Institution |
Kauno technologijos universitetas. |
| Type |
Master thesis |
| Language |
Lithuanian |
| Publication date |
2017 |
