预览加载中，请您耐心等待几秒...

超高速切削Inconel718刀具寿命研究及切削参数优化.docx

预览
1/4
2/4
3/4
4/4

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

超高速切削Inconel718刀具寿命研究及切削参数优化 摘要 本文主要研究了超高速切削Inconel718刀具寿命的影响因素，通过对刀具材料、切削参数、刀具润滑等方面的分析研究，提出了切削参数优化的建议，以提高刀具寿命和切削效率。实验结果表明，刀具润滑、进给速度等因素对刀具寿命和切削质量具有重要影响。 关键词：超高速切削；Inconel718；刀具寿命；切削参数；刀具润滑 Introduction Inconel718isatypeofsuperalloythatiswidelyusedinvariousindustriesduetoitsexcellentmechanicalproperties,high-temperatureresistance,andcorrosionresistance.However,duetoitshighstrengthandtoughness,Inconel718isdifficulttomachineusingtraditionalcuttingmethods,whichoftenleadtolowcuttingefficiency,poorsurfacequality,andshorttoollife.Therefore,thedevelopmentofnewcuttingtechnologiesandcuttingparametersisofgreatsignificanceforimprovingthecuttingperformanceofInconel718andreducingtheprocessingcosts. Inrecentyears,theemergenceofultra-high-speedcuttingtechnologyhasgreatlyimprovedthemachiningefficiencyandqualityofInconel718.Withthehelpofnewtoolmaterials,high-speedandhigh-precisionmachiningofInconel718canbeachieved.However,duetothehighcuttingtemperatureandmechanicalloadduringultra-high-speedcutting,toolsareoftensubjecttothermalcracking,chipping,andotherfailuremodes,leadingtoshorttoollife. Inthispaper,weaimtoexploretheimpactfactorsoftoollifeinultra-high-speedcuttingofInconel718,andproposeoptimizationsuggestionsforcuttingparameterstoimprovetoollifeandcuttingefficiency. ExperimentalMethod TheexperimentswereconductedonaCNCmachiningcenterequippedwithahigh-speedspindleandamulti-functionalcuttingtool.Thecuttingtoolusedintheexperimentswasmadeofcementedcarbide(YG8),withadiameterof6mm,andanumberofcuttingedges.TheInconel718workpiecewasclampedontheworktablewithafixedpositionagainstthecuttingtool.ThecuttingparametersusedintheexperimentsareshowninTable1. Table1.CuttingParameters Cuttingspeed(m/min)Feedrate(mm/min)Depthofcut(mm) 200-3000.1-0.20.2-0.5 Thecuttingtoolwasexaminedforwearandfractureaftereachexperiment,andthemachiningqualityoftheInconel718workpiecewasevaluatedbysurfaceroughnessanalysis. ResultsandDiscussion Theeffectofcuttingspeedontoollife Thecuttingspeedhasasignificanteffectontoollife.Wi