3D打印與創客3DPrintingandCreator主講人：易杰Speaker:JieYiFDM成型特點FDMmoldingcharacteristics課程導入CourseintroductionFDM的成型特點是什么WhatarethemoldingcharacteristicsofFDMFDM的成型特點FDMmoldingcharacteristics電能加熱塑料絲Electricenergyheatingplasticwire噴

頭Nozzle熔融狀態Moltenstate熔融的塑料絲噴涂到工作平臺Spraythemoltenplasticwireontotheworkingplatform計算機的控制下Underthecontrolofcomputer能量傳輸和材料疊加Energytransferandmaterialstacking用激光為能源的光固化工藝LightcuringprocessusinglaserasenergysourceThree-dimensionalprintingprocessusingdropletinjectiontechnologyDifferentfrom能源價格相對低，設備成本低，日常維護成本也較低Thepriceofenergyisrelativelylow,thecostofequipmentislow,andthecostofdailymaintenanceisalsolow成型材料廣泛，熱塑性材料均可應用Therangeofmoldingmaterialsiswide,allthermoplasticmaterialscanbeused環境友好，制件過程中無化學變化，不會產生顆粒狀粉塵Environmentallyfriendly,nochemicalchangesintheprocessofmanufacturingandnoparticulatedust設備體積小巧，易于搬運，適用于辦公環境Thesizeofequipmentissmallandeasytocarry,suitableforofficeenvironmentFDM的成型特點FDMmoldingcharacteristics原材料利用率高

→廢舊材料可進行回收再加工Highutilizationrateofrawmaterials→Wastematerialscanberecycledandreprocessed噴頭的運動是機械運動

→速度有限制，成型時間較長Themovementofthenozzleisamechanicalmovement→thespeedislimitedandthemoldingtimeislong成型精度較低

→表面有明顯的臺階效應Lowmoldingaccuracy→Thereisclearstepeffectonthesurface成型過程中需要加支撐結構Supportstructureisneededduringthemoldingprocess手動剝除困難，影響制件表面質量Itisdifficulttopeelbyhand,whichaffectsthesurfacequalityofpartsFDM的成型特點FDMmoldingcharacteristics優點Advantages1成本低Lowcost2水溶性支撐材料Water-solublesupportmaterial去除支架結構簡單易行Easytoremovethebracketstructure快速構建復雜的內腔、中空零件以及一次成型的裝配結構件Quicklyconstructionofcomplexinternalcavity,hollowparts,andone-timemoldingassemblystructuralparts用液化器代替了激光器Replacethelaserwithliquefier原材料的利用效率高且沒有毒氣或化學物質污染HighutilizationefficiencyofrawmaterialsandnopollutionbytoxicgasesorchemicalsFDM的優缺點AdvantagesanddisadvantagesofFDM優點Advantages3原材料Rawmaterials4選用多種材料

Avarietyofmaterialsselected各種色彩的工程塑料ABS、PC、PPS及醫用ABS等VariouscolorsofengineeringplasticsABS,PC,PPSandmedicalABS,etc.以材料卷得的形式提供Intheformofmaterialroll易于搬運和快速更換EasytohandleandquickchangeFDM的優缺點AdvantagesanddisadvantagesofFDM優點Advantages5原材料Rawmaterials6原型零件Prototypeparts用蠟成型的原型零件Prototypepartsmoldedwithwax可以直接用于熔模鑄造Beabletobedirectlyusedininvestmentcasting在成型過程中無化學變化Nochemicalchangesduringmolding制件的翹曲變形小SmallwarpageanddeformationofpartsFDM的優缺點AdvantagesanddisadvantagesofFDM缺點Disadvantages原型的表面有較明顯的條紋，成型精度相對較低，最高精度0.127mmThesurfaceoftheprototypehasobviousstripes,themoldingaccuracyisrelativelylow,withthehighestprecisionof0.127mm沿著成型軸垂直方向的強度比較強Thestrengthalongtheverticaldirectionofthemoldingaxisisrelativelystrong需要設計和制作支撐結構NeedtodesignandmakeSupportstructure需要對整個截面進行掃描涂覆，成型時間較長，成型速度相對SLA慢7%左右Theentirecrosssectionneedstobescannedandcoated,themoldingtimeislong,andthemoldingspeedisabout7%slowerthantheSLA原材料價格昂貴RawmaterialsareexpensiveFDM的優缺點AdvantagesanddisadvantagesofFDMFDM課程小結Coursesummary知識目標Knowledgeobjectives成型特點與優缺點Characteristics,advantagesanddisadvantagesofmolding事物是辯證的，有兩面性的助同學們辯證的看待事物ThingsaredialecticalandhavetwosidesHelpstudentstoseethingsdialectically技能目標Skillobjectives具備熟悉特點和優缺點的能力Abilitytobefami