Abstract：To investigate the mechanism of abrasive water jet cutting process with micro scale characteristics, the abrasive speeds at jet stream center, jet edge and average abrasive speed at the section with distance of 3.0 mm from nozzle outlet were calculated under operation jet pressure of 250 MPa. Finite element method was used to simulate the impact of steel plates with different thicknesses. The results show that the abrasive speed is relative small at the jet edge with little deformation on the steel plate, and little damage is appeared on the surface with bounced abrasive. Large deformation is appeared with apparent surface damage when the abrasive speed reaches the average speed, while the abrasives are embeded into the steel plate. Abrasives go through the plate directly at the jet center, and cause less deformation than that with abrasive speed at jet edge. The plate strain gradually decreases with the increase of thickness of steel plate at the same abrasive speed. The experiment was conducted under the same conditions, and the optical profilescanning device was used to examine the distributions of roughness. The simulation results are in good accordance with the experiment results.
康灿, 周亮, 王育立, 龚辰. 磨料水射流冲击材料壁面的模拟与试验[J]. 江苏大学学报（自然科学版）, 2013, 34(3): 276-280.
KANG Can, ZHOU Liang, WANG Yu-Li, GONG Chen. Simulation and experiment of impinged material surface with abrasive water jet[J]. Journal of Jiangsu University(Natural Science Eidtion)
, 2013, 34(3): 276-280.
2013, Vol. 34 
