Optimizing diamond drill bit formula using uniform design
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摘要: 对用于干钻花岗岩的金刚石钻头的胎体配方采用有约束的配方均匀设计,研究胎体配方不同成分对钻头锋利度和寿命的影响,并利用SPSS对试验结果进行回归分析,得出性能指标与各组分之间的关系,同时通过t检验得出影响因素的主次及影响的显著性,最后通过Excel规划求解得到最优化配方。实验结果表明,建立的Scheffe回归方程对试验结果有很好的拟合性,在三种组分中,Co元素的含量对金刚石钻头的锋利度与寿命有显著影响,运用配方均匀设计能够使我们用较少的试验次数获得理想的结果。Abstract: The diamond bit matrix formulas are designed by uniform design with constraints to study the effects of diamond bit matrix formula on sharpness and life.Nonlinear regression analysis of experimental data is performed in SPSS to obtain the relationship between the performance and the component.At the same time,the sequence of influence factors and the significance are revealed using t test.Finally,the optimized formula is obtained through excel programming.The results show that the established Scheffe regression equation has a good fit to the experimental results.The content of Co element has a significant influence on the sharpness and life of diamond bit.The uniform design of the formula can reach desired result with less tests.
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Key words:
- bit matrix /
- formula uniform design /
- SPSS software /
- regression analysis /
- Excel programming solution
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