简介:Characteristicvaluesandtestingmethodsfordeepdrawingprocesses;Comparisonofexperimentalandsimulateresultsforamildsteelandadual-phasesteeldeformedundertensionanddeep-drawing;Computer-aidedprocessdesignsystemforaxisymmetricdeepdrawing;Contactlesson-linemeasurementofmaterialflowforclosedloopcontrolofdeepdrawing;Deepdrawingofnickelfoilandstainlesssteelfoil;
简介:Adatabaseorientedprocesscontroldesignalgorithmforimprovingdeep-drawingperformance,Afiniteelementandexperimentalstudyofsheetdeformationasinfluencedbydrawbeadendgeometry,Anoteondeepdrawingprocess:numericalsimulationandexperimentalvalidation,Anovelrolling-annealingcycleforenhanceddeepdrawingpropertiesinIFsteels,Anoveltechniqueoffrictionaideddeepdrawingusingablank-holderdividedintofoursegments.
简介:Drivesystemoptimizationofhydraulicdeepdrawingpressesfordevelopmentandcommissioning;Economicallaser-cutblanksfordeepdrawing;Effectofanisotropyandprebulgingonhydromechanica!deepdrawingofmildsteelcups;EnhancetheFormabilityofSheetMetalviaSmartTooling;Experimentalandnumericalapproachesofspringbackofhigh-performancesteelsdrawnwithu-shapedtoolsandanindustrialsidemembertool
简介:Afundamentalstudyofcanformingbythestretch-drawingprocess;Anexerciseincoldironingasthepost-forgingoperationfornet-shapemanufacture;Designofhorizontalmechanicalpressesfordeepdrawingandironingprocess;DevelopmentofsimulationcodeforcalculatingresidualstressdistributioninD-Icansproducedbyboth-sidedironingprocess;Fractureanalysisoftubedrawingwithamandrel;Improvementoffillingratioandreductionofformingpressure-atrialforformingofaspurgearmadefromthedrawncupⅡ
简介:铜拉链的拉头加工工艺,在冲裁、弯形和对折弯形后整形。使处于2.7±0.05mm空间中的倒U字形条,整形成2.60-0.15×4.3mm×63°10'的V字形条。整形后V字形条要与拉头外形的中心线对称,由于拉链的产量大,价格便宜,故铜拉头冲压整形是关键性的工序。而要从两边仅为0.05㎜的单边间隙中,将倒U字形条整形成V字形条。可采用支承块支撑拉头,压板是依靠橡皮弹力轻压拉头,并需要进行完全定位。然后,在左右斜块作用下,使安装在左右滑块上左右挤板产生挤压,将U字形条整形成V字形条。这种整形成形效果不仅使成形的效率高,而且是整形成形的对称性好,整形的质量高、价格便宜。
简介:德国瓦尔特(Walter)公司开发的HelicheckProandPlus测量机现在已具备了对刀具的切削刃制备(即切削刃圆弧半径)进行精密测量的功能。刀具的切削刃制备作为延长刀具寿命的一种重要方法,已得到日益广泛的应用,但迄今为止,对切削刃制备的精密形貌进行测量还需要使用昂贵的专用测量仪器。为了解决这一问题,瓦尔特的Helicheck测量机在原有测量功能(包括刀具的几乎所有几何形貌特征,如刀尖圆弧半径、前角、螺旋角、径跳、倒棱宽度等)的基础上,又增加了自动测量切削刃圆弧半径的功能。该测量机利用新增的照相机(放大倍数1000倍)和分路LED(发光二极管)光束(安装在专用的、CNC控制的旋转轴上),能够对最小至5微米的切削刃圆弧半径进行测量。