基于回归正交试验的皮质骨钻削力试验研究

摘要

Drilling force variation rules at drilling process for improving the design of tool and measuring bone injury are impor-tant. The regression orthogonal experiment and multiple linear regression method were used to manager experiment data and the predic-tion model of drilling forces was established. It is indicated that the diameter has the greatest influence on the drilling force,the feed rate is the second,the drilling speed is the last. By choosing correct drilling parameters,the processing efficiency can be improved by controlling the cutting parameters,the optimal drilling force can be obtained.%骨钻过程中，钻削力的变化规律对优化刀具参数和测量骨损伤至关重要，为获得皮质骨的钻削力变化情况，采用正交试验方法对皮质骨进行钻削试验，并用多元线性回归法对试验结果进行处理，建立了皮质骨钻削力的预报模型。结果表明：对钻削力影响最大的是钻头直径d，进给量f次之，切削速度v的影响最小。在实际操作中选择合适的钻削参数可提高加工效率，通过控制切削用量可以获取最优的切削力。