正交试验设计的硬钢群钻几何参数优化分析  

Optimization analysis of CMFD's geometrical parameters for drilling hardened steel based on orthogonal design of experiments

作　　者：胡思节[1] 胡鑫[1] 蒋小兵[2] 

机构地区：[1]湖南大学国家高效磨削工程技术研究中心,长沙410082 [2]湖南大学深圳研究院,深圳518057

出　　处：《现代制造工程》2010年第7期60-63,共4页Modern Manufacturing Engineering

摘　　要：针对硬钢材料硬度高、强度大和导热性差等材料特性,通过正交试验设计法进行群钻基础钻削试验,分析和研究外刃顶角2ρ、后角αfc和尖宽bφ三种钻尖参数对钻头寿命的影响,并进行方差分析及显著性检验,然后对研究结果进行单因素分析验证。其结果表明:在三种钻尖参数中,外刃顶角对群钻钻头寿命起决定性作用;通过相关优化分析获得了在硬钢材料钻削中,群钻钻尖的最优几何参数。According to the material performance of hard steel＇s high hardness,heavy intensity and low heat conductivity by using the orthogonal experiment method,the influence of three kinds geometrical parameters： top angle,chisel edge,relief angle on the drills life was discussed,and the test of significance and variance analysis for it were also analyzed,equation,furthermore the single-element tests were done.The results indicate that top angle is the decisive parameter to the drills life;with correlative analysis on the results from the test,the optimal set of geometrical parameter values was discovered.

关 键 词：群钻 几何参数 硬钢 正交试验设计 

分 类 号：TG713[金属学及工艺—刀具与模具]