资源描述
制造技术/工艺装备
现代制造工程( Modern Manufacturing Engineering)
2014年第7期
基于正交试验的喷丝板微孔刀具结构参数对
切削性能的影晌分析
赵乾成,吕建国,付辉,杨崇倡
(1东华大学机械工程学院纺织装备教育部工程研究中心,上海201620;
2厦门翔鷺化纤股份有限公司,厦门361026)
摘要:采用金属切削有限元仿真软件 DEFORMI3D建立了喷丝板微孔刀具切削的有限元模型,并基于正交试验表的设计
方法,设计了4水平3因素的正交试验表。以刀具切削过程中的轴向力和扭知作为刀具切削性能影响参数的评价指标,
根据正交试验的极差分析结果,确定了喷丝板微孔刀貝切削性能评价指标诸因素的影响程度排序。通过对刀貝不同
构参数的分析,得到了各结构参数对刀具切削性能影响的变化规律,可为进一步的喷丝板徴孔刀具的优化设计提供
参考。
关键词:微孔刀具;喷丝板;轴向力;扭矩:) FHORM3D软件;正交试验
中图分类号:T"H16文献标志码:A文章编号:1671-3133(2014)07007704
Influence factor analysis of spinneret micro-hole drill cutting
performance based on orthogonal experiment
Zhao Qiancheng, Li Jianguo Fu Hui, Yang Hongchang
I Engineering Research Center of Advanced Textile Machinery, Ministry of Education, College of
Mechanical Engineering, Donghua University, Shanghai 201620, China; 2 Xiamen Xianglu
Fiber Company Iimited, Xiamen 361026, Fujian, China)
Abstract: inite element model for spinneret micro hole drilling process was established by the employment of DEFORM 3D for
metal cuttings. 4 level 3 Ractors of orthogonal experiment were Carried out based on the finite element model and the method for or
thogonal experiment designs. Thrust fore and torque were evaluated as indicators to determine the influence of factors affecting
the mechanical properties of micro-hole drills in metal cutting processes. The arrangement of the factors influencing the cutting
process, such as point angle, rake angle, chisel edge angle and chisel edge thickness, was ranked due to its extent of influence on
the mechanical properties of the drills. The arrangement was carried out on the basis of the range analysis of the results derive
from orthogonal experiments. The istinct factors influencing the mechanical properties of drills during the metal cutting process
were all investigated; moreover, the variations induced by the changes of the factors on the metal cutting processes were finally ob
tained. The results of present study are necessary for further optimizations of spinneret micro hole drills designs
Key words: microhole drill; spinneret; thrust force; cutting torque; DH HORM-3 D; orthogonal experimen
有限元数值模拟技术,可以替代需花费大量费用的工
と试验,从而可有效地指导喷丝板微孔刀具结构参数
喷丝板微孔具有微、深双重性,其孔型、结构和精的设计。
度直接影响成形纤维的外形、直径和物理机械性能。
由于扁钻是喷丝板微孔加工中最重要的刀具之一,所1有限元模型的建立
以扁钻刀具结构参数尤为重要2。近年来,随着计1.1刀具和工件的特性
算机性能和运算速度的迅速提高、有限元技术自身的
木文选用扁钴作为刀具,其直径为d0).25m;工
不断完善,以及有限元与其他技术的良好结合,使得件为圆柱体,直径为b0.8mm,厚度为0.6mm。刀具
有限元方法被泛应用于制造工艺的模拟中。通过和工件的特性如表1所示
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