资源描述：
《外文翻译--模具型腔数控加工计算机辅助刀具选择和研究-模具设计》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、MouldtypeofnumericalcontrolprocesscomputerassistthecutterchooseandstudyForewordNumericalcontrolincludecutterproductionandcutteroforbitchoosetwokeyproblemsprocess,.Thefirstproblemhasbeengotandstudiedextensivlyanddeeplyoverthepast20years,alotofalgorithmsdevelopedhavealreadyg
2、otapplicationincommercialCAD/CAMsystem.MostCAMsystemscanproducethecutterorbitautomaticallyafterusersinputrelevantparametersatpresent.Comparativelyspeaking,itisstillnotripetoregardquality,efficiencyastheresearchofchoosingtheproblemofcutterofoptimizingthegoalcorrectly,donoth
3、avecommercialCAMsystemthatcanofferthepreferreddecisionsupporttoolofcutteratpresent,thereforeitisdifficulttorealizetheintegratingautomaticallyandorganicallyofCAD/CAM..Thecutterischosentousuallyincludecuttertypeandcuttersize.Generallyspeaking,suitableforoneprocessingcutterof
4、targetformuchkind,onecuttercanfinishdifferentprocessingtasks,soitiseasiertoonlyconsidermeetingthecutterthatbasicallyprocessestherequirementandchoose,especiallytogeometirccharacteristicsofmodelsuchasthehole,trough,etc..Butinfact,itiscommonforcuttertochooseandsureoptimizatio
5、ngoalinterrelate,forinstancemostheavytocutefficiency,processtime,minimumprocesscost,longestservicelife,etc.atleast,sothecutterischosenitisacomplicatedoptimizationquestion.Suchasmouldtypeoneofparts,becausethegeometircformiscomplicated(usuallyincludecurvedsurfaceoffreedomand
6、island),influencegeometrythatcutterchooseitrestrainsfromtobecanexplicittosayamongCADmodel,needtodesignthecorrespondingalgorithmtodraw,thereforechoosethecutterspecificationsuitableandcutterassociation,itisnoteasythingsbyimprovingefficiencyandqualityprocessedinnumericalcontr
7、ol.Mouldtypegenerallywithpreparationmethodthatnumericalcontrolmill,usuallyincludingroughmachining,halffinishmachining,preciseprocessofprocessingetc..Theprincipleofroughmachiningistosparenoefforttoremovethesurplusmetalwithhighefficiency,thereforehopetochoosethelargercutter,
8、butthecutterisoversized,maycausetheincreaseofthecrudevolume;Halffinishmachiningoftaskstor
