基于正交实验的工业纯钛研磨工艺研究

Research on grinding process of commercial pure titanium based on orthogonal experiment

为了提高工业纯钛的表面加工质量,需要优化研磨工艺。采用单因素实验法探索磨粒形状对工业纯钛研磨效果的影响规律;利用正交实验法定量地对工业纯钛的研磨加工工艺参数进行优化。结果表明,采用不规则形状磨粒进行研磨的材料去除速率可达60.45 nm/min,高于球形磨粒的23.70 nm/min,而两者的工件表面粗糙度基本相同;研磨压力对材料去除速率的影响最为显著;采用最优的工艺参数可得到的材料去除速率和表面粗糙度分别为81.90 nm/min和Ra 0.099μm。研究结果可为工业纯钛研磨时磨粒形状的选择以及工艺参数的制定提供依据。

In order to improve the surface processing quality of commercial pure titanium,the grinding process needs to be optimized.The single factor method was used to explore the influence of the shape of the abrasive grains on the grinding effect of commercial pure titanium,and the orthogonal experiment method was used to quantitatively optimize the grinding process parameters of commercial pure titanium.The results show that the material removal rate of irregular shaped abrasive grains can reach 60.45 nm/min,which is higher than 23.70 nm/min of spherical abrasive grains,but the surface roughness of the two workpieces is basically the same;the impact of grinding pressure is the most significant.The material removal rate and surface roughness that can be obtained by the optimal process parameters are 81.90 nm/min and Ra 0.099μm,respectively.The research results can provide a basis for the choice of abrasive grain shape during commercial pure titanium grinding and the formulation of process parameters.