Laser materials processing with ultra-short pulses allows very precise and high quality results with a minimum extent of the thermally affected zone. However, with increasing average laser power and repetition rates the so-called heat accumulation effect becomes a considerable issue. The following discussion presents a comprehensive analytical treatment of multi-pulse processing and reveals the...

Laser materials processing normally induces a certain residual stress distribution in the target material. Distributions favoring microcrack propagation lead to reduced fatigue life of the material. This paper investigates the feasibility of altering the stress field by using underwater shock waves in the micron scale. Shock pressure was computed and the stress analysis was conducted, in which ...

Purpose. To test the theoretical provisions for calculating geometric and gas-dynamic parameters of a hydropulse apparatus strikers using core pipes. Methodology. The research methodology is based on tests carried out. were conducted between January 6, 2021, April 28, 2021. type laboratory bench trials. In course study, methods synthesis analysis information applied. Finding. basic design hydro...