【摘要】 针对镍基高温合金的深槽插铣加工过程开展研究,以材料去除率和残余高度为优化目标,提出了一种切削力约束和稳定性约束下的工艺参数优化模型。针对加权法建立目标函数时各目标权重难以量化调节的问题,采用比值加权法建立目标函数,保证了优化方向的平衡性。选用优化实例,采用遗传算法对优化模型进行求解,对比优化结果和经验结果的性能指标。结果表明,在满足约束条件的情况下,优化后的工艺参数不仅可以显著提高材料去除率,还可以控制残余高度,从而实现高效、高质量加工。更多还原

【Abstract】 In this paper, the deep groove plunge milling process of nickel-based super-alloys was researched.Taking material removal rate and residual height as the optimization goals, a process parameter optimization model under the constraints of cutting force and stability was proposed. The weight of each target was difficult to quantify and adjust when the objective function was established by the weighting method. Aiming at the problem, the ratio weighting method was used to establish the objective function to ensure the balance of the optimization direction. The genetic algorithm was used to solve the optimization model example, and the performance indicators of the optimization results and empirical results were compared. The results show that when the constraints are met, the optimized process parameters can not only significantly increase the material removal rate, but also control the residual height, so as to achieve high-efficiency and high-quality processing.更多还原