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刀具几何参数对高速铣削SiCpAl复合材料温度的影响研究.docx

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刀具几何参数对高速铣削SiCpAl复合材料温度的影响研究 摘要 本文基于高速铣床，使用不同几何参数刀具对SiCpAl复合材料进行铣削实验，并通过测量工件温度来研究刀具几何参数对工件温度的影响。实验结果表明，刀具前角、切削刃长和螺旋角对工件温度影响较大，当刀具前角变小、切削刃长变短、螺旋角变大时，工件温度会相应降低。为提高SiCpAl复合材料高速铣削质量，应选取适当的刀具几何参数。 关键词：高速铣削；SiCpAl复合材料；刀具几何参数；工件温度 Introduction SiCpAlcompositematerialhasgoodmechanicalproperties,highstrength,goodheatresistance,andgoodwearresistance.Itiswidelyusedinaerospace,automobile,andotherindustries.High-speedmillingtechnologyiswidelyusedintheprocessingofSiCpAlcompositematerials.Duringthemillingprocess,thecuttingtemperaturehasadirectandsignificanteffectontheprocessingqualityandefficiency.Therefore,studyingtheinfluenceoftoolgeometryparametersonthecuttingtemperatureduringmillingofSiCpAlcompositematerialisofgreatsignificanceforimprovingprocessingquality. Experimentalmethods Inthisexperiment,ahigh-speedmillingmachinewasusedtoperformmillingexperimentsonSiCpAlcompositematerial.Thecuttingtemperaturewasmeasuredusingathermocouple,andtheinfluenceoftoolgeometryparametersonthecuttingtemperaturewasobservedandanalyzed. Resultsanddiscussion TheinfluenceoftoolgeometryparametersonthecuttingtemperatureofSiCpAlcompositematerialswasanalyzed.Theresultsshowedthatthecuttingtemperaturewasaffectedbythetool'sfrontangle,cuttingedgelength,andhelixangle.Asthefrontangleofthetooldecreased,thecuttingtemperatureoftheworkpiecedecreased.Thisisbecauseasmallerfrontangleleadstoadecreaseinthecuttingforce,therebyreducingthecuttingtemperatureoftheworkpiece.Similarly,whenthecuttingedgelengthisshorter,thecuttingtemperatureoftheworkpiecedecreases.Thisisbecauseashortercuttingedgelengthleadstoadecreaseinthecuttingforce,therebyreducingthecuttingtemperatureoftheworkpiece.Additionally,theincreaseinhelixanglecanreducethecuttingtemperature. Conclusions TheexperimentalresultsshowedthatthecuttingtemperatureofSiCpAlcompositematerialswasaffectedbythetool'sfrontangle,cuttingedgelength,andhelixangle.Thesmallerthefrontangle,theshorterthecuttingedgelength,andthelargerthehelixangle,thelowerthecuttingtemperatureoftheworkpiece.Reas