面光源激光烧结温度腔设计

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关键词：温度腔设计；预热；面光源；激光烧结；拉伸强度

DOI：10.15938/j. jhust. 2025.06.008

中图分类号：TG502.31 文献标志码：A 文章编号：1007-2683（2025）06-0070-10

Abstract：Atemperature chamber isdesigned for heating powder sufaceand keping theprinting environmenttemperature constant.Basedontheoriginal modelofthequipment，aclosed temperaturechamberwasdesignedtosolvetheproblemssuchas powderpreheating，temperaturefelduniformityduringprintingandopticalfocallengthof7Omm.Ittakes theformofsheemetaland heatinsulationplatetoseal theprintingenvironmentandusesheatinglamptoradiateheattransfertothepowder.Themechanical propertiesof tensilepartsaremeasuredwithor withouttemperaturechamber.Theresultsshowthattheperformancestrengthof the tensilepartsreaches1.58MPawithouttemperaturechamber，andthewarpingproblemisserious.Undertheactionof thetemperature chamber，theperformanceof thetensilepartimprovesto3.798MPa，withsignificantlyenhancedmechanical properties，ensured ambient temperature uniformity during the printing process，and efectively reduced warping.

Keywords：temperature chamber design； preheating；area light source； laser sintering;tensile strength

0 引言

选区激光烧结（selectivelaser sintering，SLS）技术，又称激光烧结（lasersintering，LS），是3D打印技术形式之一[]。（剩余12335字）