论文部分内容阅读
采用激光技术在W6Mo5Cr4V2高速钢试件表面加工出凸包型仿生单元。选取凸包的直径、间距和高度作为仿生单元参数,应用Box-Behnken中心组合试验设计方法,设计并进行高速钢仿生表面的摩擦磨损试验,通过回归分析,建立高速钢仿生表面磨损量与仿生单元参数之间的二阶数学模型。分别应用F检验法和相关系数检验法,验证磨损量数学模型显著。磨损量模型的预测精度分析和磨损试验表明,建立的数学模型能够描述磨损量与仿生单元参数之间的关系。通过方差分析,得到高速钢凸包型仿生单元参数对仿生表面磨损量的影响程度依次为间距、高度和直径。
The laser technology was used to fabricate convex bionic bionic units on the surface of W6Mo5Cr4V2 HSS specimens. Select the diameter, spacing and height of the convex hull as the parameters of the bionic unit, design and carry out the friction and wear test of the bionic surface of the high-speed steel by the method of Box-Behnken center combination design. Through regression analysis, establish the bionic surface wear rate and bionic unit Second order mathematical model between parameters. F test and correlation coefficient test were applied to verify the mathematical model of wear was significant. The prediction accuracy analysis and wear test of the wear volume model show that the established mathematical model can describe the relationship between the wear volume and the parameters of the bionic unit. Through the analysis of variance, the influence degree of bionic unit parameters of high-speed steel convex bionic type on the amount of wear on bionic surface was followed by pitch, height and diameter.