Aluminum alloys are used widely in different industrial applications especially in aviation and aerospace. The conventional machining of some special Aluminum Alloys is difficult and non-economical. Abrasive waterjet AWJ recently showed a good potential for processing different materials. The quality of the cut surface by using this process is still a challenge, and there is still a limit on surface quality for single cut by using this technique.

In this study, new cutting strategies are being employed to improve the cutting quality beyond the limits which were achieved previously. The strategies are based on single, double, and multi cutting passes with different cutting speeds and directions.

A new model was implemented for different cutting strategies. It investigates the influence of number of cutting passes, traverse speed strategy, and cutting direction strategy on the quality of cutting by using Response Surface Method (RSM). The model can expect the minimum number of passes and the suitable cutting strategy which are sufficient to achieve a certain surface roughness. Finally, the model is optimized with respect to cutting quality to get the best surface quality corresponding to different cutting strategies. The model is verified and showed a good agreement with the experimental results.

铝合金广泛用于不同的工业应用中，特别是在航空和航天中。一些特殊铝合金的常规加工是困难且不经济的。磨料水刀AWJ最近显示出了加工不同材料的良好潜力。使用这种方法切割表面的质量仍然是一个挑战，并且使用这种技术对单次切割的表面质量仍然存在限制。

在这项研究中，采用了新的切割策略来提高切割质量，使其超出先前所达到的极限。这些策略基于具有不同切割速度和方向的单次，两次和多次切割。

针对不同的切割策略实施了新模型。通过响应面法（RSM），研究了切削次数，移动速度策略和切削方向策略对切削质量的影响。该模型可以预期通过的最少次数和适当的切削策略足以实现一定的表面粗糙度。最后，针对切割质量对模型进行优化，以获得与不同切割策略相对应的最佳表面质量。模型经过验证，与实验结果吻合良好。