简介:摘要:本文对300MW格架条带生产过程中频繁出现冲头或凹模问题进行了总结和分析,并找出了几种有效的解决方案,最终解决了模具在生产中容易崩口造成产品外观缺陷报废,同时也有效地提高300MW格架条带的生产效率及产品的合格率。
简介:摘要:电压电流的变化通过导线传输时有二种形态,我们将此称做“共模”和“差模”。设备的电源线、电话等的通信线、与其它设备或外围设备相互交换的通讯线路,至少有两根导线,这两根导线作为往返线路输送电力或信号。但在这两根导线之外通常还有第三导体,这就是“地线”。干扰电压和电流分为两种:一种是两根导线分别做为往返线路传输;另一种是两根导线做去路,地线做返回路传输。前者叫“差模”,后者叫“共模”。
简介:ESSENTIALWORKOFFRACTURECONCEPTINPOLYMERS;Experimentalstudyofthesuperplasticityofmgalloy;Evaluationofpressformabilityinmagnesiumalloy;Finiteelementanalysisoftheformabilityofanaustenitiestainlesssteelsheetinwarmdeepdrawing;Forminglimitdiagramfor6016-T4aluminiumalloydeformedalonglinearandcomplexstrainpaths;From3-DNonlinearElasticityTheorytoI-DBarswithNonconvexEnergy
简介:Creating,transporting,cutting,andmergingliquiddropletsbyelectrowetting-basedactuationfordigitalmicrofluidiccircuits;DeformationandDuctileCrackInitiationinWeldHAZSofteningJoints-StudiesonDeformationandStrengthinWeldedJointsofFineGrainSteel(Report3);DeformationandfailuremechanismsincommercialAA5083materials;Determinationofforminglimitdiagrams-anewanalysismethodforcharacterizationofmaterialsformability;Determinationoftheequivalentstress-equivalentstrainrelationshipofacoppersampleundertensileloading;
简介:Adesignmethodforpredictionofdimensionsofrectangularhollowsectionsformedinstretchbending,Ageneralizedmixedkinematic-isotropichardeningplasticmodelcoupledwithanisotropicdamageforsheetmetalforming,Amoregeneralmodelforforminglimitdiagramsprediction,Aunifiedfailureapproachforsheet-metalsformabilityanalysis,Avisualtechniquetodeterminetheforminglimitforsheetmaterials,Amplitude-dependentinternalfrictionofdislocationinteractionsindual-phasesteel.