Effect of Mechanical Properties of Materials on Wave Formation in Explosive Welding

Resumo

Experiments on the explosive welding of low-plasticity steels through thin plastic layers show that, aside from the geometric features of collision (thickness and angle of collision of plates and contact point velocity), the sizes of waves arising in the weld are also highly affected by the mechanical properties of welded materials (hardness, density, and sound velocity). It is determined that waves of different sizes can be formed under the same conditions, but their length lies in a certain range of values. On the basis of the experimental data obtained and with involvement of the Landau model, which describes the instability of a steady flow of viscous fluid, expressions for estimating the upper and lower wavelength limits are constructed with account for both geometric parameters of collision and mechanical properties of colliding metal plates.