文档介绍：青岛理工大学工学硕士学位论文摘要铣削,是最常用的高生产率切削加工方法之一,但在当前工厂的数控铣削加工过程中,还存在很多问题。本论文主要针对数控铣削加工过程中影响表面加工质量的各因素来展开研究。(1)分别针对数控铣削加工过程中的主轴转速、进给量、跨度等几个主要铣削参数进行研究,在w intec My-80加工中心上加T Crl2模具钢实验工件,用表面形貌分析仪测出大量数据;然后用数理方法对数据进行处理和分析,得出上述参数对工件表面质量的影响程度,并给出常用参数的参考值。(2)分析常用的环切法和行切法两种切削路径对曲面加工表面质量的影响, 比较两种路径的加工效率、表面质量、***磨损等内容,为现场加工曲面提供依据。(3)用正交设计法设计实验,在研究单个因素的基础上对几个主要参数的交互作用影响进行研究,通过实验分析它们在加工过程中对表面质量的综合作用; 并结合具体工况,为现场加工提供参数参考值,建立参数的回归方程,推出经验公式;然后对铣削过程中的参数进行优化处理。(4)建立数控铣削加工过程的仿真系统,本论文重点研究仿真系统的建模过程(包括数学建模,力学建模等),并结合实例进行说明。关键词数控铣削;正交设计法;参数优化;回归方程;仿真建模。青岛理工大学工学硕士学位论文 Abstract Milling is one ofthemost efficientmetal cuttingmethods·and has got wide applications invariousmanufactIlI-ing industries,in themeanlhne therearestill alot oftechnical problems inNC milling process left thesismainly focuses onthe factorsinfluencing the surfacequality ofnmnerical control main achievements ofthisthesisare够follows: (1)Aiming atseveral keyprocess parameters including spindle speed,feed rates andspan,experiments Weredesigned,and which were carried out on aWintee MV-80 machining centerby cutting aCrl2 surface quality isdetected by a Taylor Hobson surface analyzillg theexperiment data,therelationship betwcensurfacequalityand cuttingparameters was probed intoand reference values ofthoseprocess parameters wereprovided. (2)The influence ofthe two different tool pathos,circuit cutting and IOW cutting,to thequality ofsttrfacewhen clItting acurved surfacepart Wasinvestigated, and other fagtors like the work efficiencyand tool wear,were ,the theoretical basisforrational selectionofprocess parameters can beprovided SO astOobtainthe idealsurfac圮quulity. (3)Special experiments WCI'edesigned inorthogonaldesign Oll theresearch ofevery singleparameter,the relationship betweenthem Wasdiscussed, SO thatsome regulation bined effect on the surface quality could be ,reference values mOn process ers WelfCprovided aexzn-ding todifferent conditions,Exper