Owing to the advancement in the field of materials, different range of grades have been developed. The machinability examination of these newer grades must be carried out for future applications. One such newer grade of magnesium with AZ31 is deemed for study during the drilling process. The independent parameters considered are spindle speed (SS), feed rate (FR) and drill bit diameter (DBD). The dependent parameters considered are burr height (BH), burr thickness (BT), drilling time (DT) and surface roughness (SR). Improving hole accuracy is essential for manufacturing superior products, which is discussed in this work. At the same time, the machining time has also to be minimized to increase the production rate. With these objectives, the experimental investigation is made. Further, an analytical model for predicting the responses is developed; later, optimization is carried out to obtain the desired responses through the desirability function approach. The multi-objective optimization suggests the SS of 1100rpm, the FR of 0.198mm/rev., and the DBD of 6mm for reducing the entire dependent is reckoned.

中文翻译：

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AZ31镁板孔精度和钻孔时间的建模与优化

由于材料领域的进步，已开发出不同范围的牌号。必须对这些较新牌号的机械加工性进行检查以备将来应用。一种具有 AZ31 的较新等级的镁被认为在钻井过程中进行研究。考虑的独立参数是主轴转速 (SS)、进给率 (FR) 和钻头直径 (DBD)。考虑的相关参数是毛刺高度 (BH)、毛刺厚度 (BT)、钻孔时间 (DT) 和表面粗糙度 (SR)。提高孔精度对于制造优质产品至关重要，这在本工作中进行了讨论。同时，还必须尽量缩短加工时间以提高生产率。带着这些目标，进行了实验研究。此外，开发了用于预测响应的分析模型；随后，进行优化以通过期望函数方法获得所需的响应。多目标优化建议 SS 为 1100rpm，FR 0.198毫米/转，DBD 为 6mm 用于减少整个依存关系。