【摘要】 零件中孔的加工质量是影响后续装配精度与服役性能的重要因素。研究聚晶金刚石铰刀刃带宽度与背锥量对6061-T6铝合金孔加工圆度和表面粗糙度的影响规律，采用响应曲面法中的中心复合设计试验方案进行试验设计，建立圆度与表面粗糙度关于刃带宽度和背锥量的回归模型，分析两个参数交互作用对铰削质量的影响，并基于响应曲面法进行多目标参数寻优。研究结果表明，刃带宽度与背锥量对圆度影响显著，交互作用明显，同时对表面粗糙度影响显著。其中，背锥量呈现明显的二次效应。以获得最优圆度与表面粗糙度为目标，推荐聚晶金刚石铰刀的结构参数组合。更多还原

【Abstract】 The machining quality of the hole in the part is an important factor affecting the subsequent assembly accuracy and service performance. The influence of the margin width and back taper of the polycrystalline diamond reamer on the roundness and surface roughness of 6061-T6 aluminum alloy hole machining was studied. The center composite design experimental scheme in response surface methodology was used for experimental design,and the regression models of roundness and surface roughness with respect to margin width and back taper were established. The interaction effect of two parameters on reaming quality was analyzed,and the multi-objective parameter optimization was carried out based on response surface methodology. The research result indicates that the margin width and back taper have a significant impact on roundness,with a clear interaction effect,and also have a significant impact on surface roughness. Among them,the back taper shows a significant quadratic effect. Finally,a combination of structural parameters for polycrystalline diamond reamer was recommended with the goal of achieving optimal roundness and surface roughness.更多还原