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开槽填充黏弹性材料对圆锯片振动的影响分析.docx

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开槽填充黏弹性材料对圆锯片振动的影响分析 Abstract Inrecentyears,theresearchanddevelopmentofcircularsawbladeshasdrawnincreasingattention.Naturalvibrationisoneofthemainreasonsforthepoorcuttingaccuracyandshortservicelifeofthecircularsawblades.Inordertoreducethenaturalvibrationofthecircularsawblades,differentmeasureshavebeentaken.Oneofthepopularmethodsistofillthesawbladeslotwithelasticmaterial.Thispaperaimstoanalyzetheinfluenceofelasticmaterialfillingsonthevibrationofcircularsawblades. Keywords:Circularsawblade,naturalvibration,elasticmaterial,fillings,cuttingaccuracy. Introduction Thecircularsawbladeisacriticaltoolforwoodworkingandmetalworking,whichiswidelyusedinvariousindustries.Itscuttingperformanceandaccuracyarekeyfactorsthatdeterminethemachiningqualityandefficiency.However,duetothecuttingloadandthelimitationofthebladestructure,thecircularsawbladeispronetonaturalvibrationduringthecuttingprocess.Thevibrationofthesawbladeresultsindeformation,noise,andevendamage,leadingtopoormachiningqualityandshortenedservicelife. Variousmethodshavebeendevelopedtoreducethevibrationofcircularsawblades,includingimprovingthedesignandmaterialofthesawblade,theuseofsophisticatedmachines,andtheoptimizationofthecuttingparameters.Anotherpopularmethodistofilltheslotofthesawbladewithelasticmaterialstosuppressvibration.Theelasticmaterialcanabsorbthevibrationenergyandreducetheamplitudeofthesawblade. Thispaperanalyzestheimpactofelasticmaterialfillingsonthenaturalvibrationofcircularsawblades,focusingonthetheoreticalanalysisandexperimentalverification.Theresultsofthisstudywillprovideatheoreticalbasisandengineeringguidancefortheoptimizationofcircularsawbladedesignandcuttingparameters. Theory Thenaturalvibrationofthecircularsawbladeiscausedbytheinteractionbetweenthebladeandthecuttingmaterial,whichresultsindynamicelasticdeformation.Thevibrationfrequencyisdeterminedbythestructuralcharacteristicsofthesawblade,suchasthediameter,thickness,andthenumberofteeth.Thefundamentalfrequencyisrelatedtotherotationalspeedandthecuttingdiam