Simulation Effect of Laser Moving Speed and Spot Size on Maximum Temperature in Laser Welding Human Skin Tissue
Abstract
This paper presents a study focused on the development of computer simulation. The research involves the application of a moving laser onto a three-dimensional model of human skin tissue, which comprises three layers. This study focuses on how the speed of the laser moving and the spot size of the laser beam affect the maximum temperature after welding biological tissues. The critical point of concern is when the temperature exceeds 65 °C, as this level of heat can lead to damage to the skin tissue. The results of the study showed that when changing the speed of the laser moving from 50 mm/s to 250 mm/s in increments of 50 mm/s, the maximum average temperature after tissue welding with the laser was found to be 63 °C, 67.1 °C, 70.7 °C, 70.1 °C, and 70.9 °C, respectively. Similarly, altering the laser radius from 0.1 mm to 0.5 mm in increments of 0.1 mm. The average temperatures after biological tissue welding of 71.4 °C, 69.4 °C, 62.9 °C, 55.7 °C and 52 °C respectively. A larger radius of the laser spot results in a lower maximum temperature. Comparison with previous tissue studies revealed similar trends in temperature curves. The findings of this study can be further explored in the future by changing the laser's movement patterns to reduce the impact of thermal induced damage.