| Popis: |
The study deals with complex effect of the external shapes and internal cavities of samples, as well as deformation waves generated in shock systems with a different ratio of striker and waveguide lengths (L1/L2=3, 5, 10), on the results of wave deformation hardening (WDH). Finite element modeling is used to conduct the research. The studies are performed on rectangular, triangular and cylindrical samples of the same thickness and volume. The influence internal cavities shapes on the hardening efficiency is evaluated by forming rectangular, triangular and cylindrical grooves of the same volume in the samples. The research was carried out using the following materials: steel 45, titanium VT 1-0, bronze BRAZH 9-4, aluminum V95. It is stated that the rectangular shape of both the product itself and the internal groove has the greatest influence on the hardening characteristics, compared with other forms under study. It is also stated that not the shape of the product itself and the cavities in it, but the parameters of the shock system such as the ratio of striker and waveguide lengths have the more significant influence on the hardening effectiveness. |
