螺旋傘齒輪精鍛工藝及數(shù)值模擬研究.pdf

1、河南科技大學(xué)碩士學(xué)位論文螺旋傘齒輪精鍛工藝及數(shù)值模擬研究姓名：皇濤申請學(xué)位級別：碩士專業(yè)：材料加工工程指導(dǎo)教師：陳拂曉20100101AbstractIISubject:ResearchStatusNumericalSimulationofPrecisionFgingProcessfSpiralBevelGearSpecialty:MaterialsProcessingEngineeringName:HuangTaoSupervis:C

2、henFuxiaoProfessABSTRACTTheloadcarryingcapacitysmoothtransmissionperfmanceofspiralbevelgeararemuchbetterthanthatofstraightbevelgearitcanmeettherequirementsofhighspeedheavytransmissionverywell.Itssignificantperfmancealsop

3、romptsresearcherstostudyitsdesignprocessingtechnologyindepth.Withthematurityofprecisionfgingtechnologyfstraighttoothbevelgearitswidepromotionapplicationinthewldpeoplepaymemeattentiontotheprecisionmoldingofspiralbevelgear

4、.Thetraditionalgearprocessingmethoddamagesthemetalfiberflowlineganizationreducesthebendingfatiguestrengthoftherootofgeartoothtoothsurfaceabrasionetc.Italsoresultsinlowproductivitylowmaterialutilizationhighproductioncosts

5、aswell.Therefeprecisionfgingreplacingtheexistingmillingprocessisoneofthemostimptantmeanstoachieveprecisionshapingofspiralbevelgear.Thispaperstudiesthefgingprocessofdrivenspiralbevelgearmakesnumericalsimulationanalysisofi

6、tsprecisionfgingprocess.Firstlyanisothermalcompressiontestfgearsteel20CrMnTiistakenthethermalcompressiondefmationlawisanalyzedtheimpactofdefmationratedefmationtemperatureonitscompressionflowstressganizationisdiscussedthe

7、defmationresistancemodelisestablished.ThenthemodelingofdiestructurefgingofdrivenspiralbevelgearistakenplacebytheuseofthreedimensionalsoftwareUGthreedimensionalrigidplasticfiniteelementsimulationofprecisionfgingprocessisc

8、arriedoutbytheuseofsimulationsoftwareDEFMthefmingprocessofdrivenspiralbevelgearthelawoftoothdefmationstressdistributionstraindistributionthefceenergyparametersareanalyzed.Atthesametimethesituationoftoothfillingisanalyzed