基于选区激光熔化的多孔结构工艺性能研究  

Research on Process Performance of Porous Structure Based on Selective Laser Melting

作　　者：甘艺良 伊明扬 叶焰杰 曾达 陈靖 马腾 Gan Yiliang;Yi Mingyang;Ye Yanjie;Zeng Da;Chen Jing;Ma Teng(Basic Research Institute,Double Medical Technology Inc,Xiamen 361000,Fujian,China;Mechanics Laboratory,Xiamen Medical Device Research and Testing Center Co.,Ltd.,Xiamen 361000,Fujian,China)

机构地区：[1]大博医疗科技股份有限公司基础研究院,福建厦门361000 [2]厦门医疗器械研发检测中心有限公司力学实验室,福建厦门361000

出　　处：《应用激光》2024年第9期10-18,共9页Applied Laser

基　　金：厦门市重大科技计划项目(3502z20221014);厦门市公共服务平台(350205z20211003)。

摘　　要：增材制造(3D打印)作为一种先进成型技术,在复杂多孔结构制造领域具有天然的优势。为研究3D打印成型多孔结构的工艺-性能规律,基于Ti-6Al-4V合金(TC4)材料及选区激光熔化(SLM)的3D打印方式成型多孔结构,通过正交实验设计的方法,选取SLM选区激光熔化工艺参数包括激光功率、扫描速度、搭接距离为试验因素,利用极差及方差分析,研究不同工艺因素对金属选区激光熔化(SLM)3D打印多孔样件的力学性能影响规律及相关因素对不同性能指标的影响程度。最终利用线性回归方程拟合的方式,获得相关因素与性能指标的线性回归方程关系,通过回归关系方程预测最优性能组合的理论性能值并与实际测试值进行比对,理论值与实际值匹配良好,证明了通过正交实验方法建立因素条件与性能的函数映射关系并对SLM成型多孔结构进行性能预测的可行性和准确性。Additive manufacturing(3D printing),as an advanced forming method,has natural advantages in the manufacture of complex porous structures.In order to study the process-performance rules of 3D printing formed porous structure,In this paper,the porous structure is formed based on the Ti-6Al-4V alloy(TC4)material and the 3D printing method of selective laser melting(SLM),through orthogonal experimental design,the SLM selective laser melting process parameters including laser power,scanning speed,and lap distance were selected as the experimental factors,and the range and variance analysis were used to study the effects of different process factors on metal selective laser melting(SLM)3D printing.The influence law of mechanical properties of porous samples and the degree of influence of related factors on different performance indexes.Finally,the linear regression equation relationship between relevant factors and performance indicators is obtained by using the linear regression equation fitting method,and the theoretical performance value of the optimal performance combination is predicted through the regression relationship equation and compared with the actual test value.The theoretical value and the actual value have the good correspondence proves the feasibility and accuracy of establishing the functional mapping relationship between factor conditions and performance for predicting the performance of SLM-formed porous structures by means of orthogonal experiments.

关 键 词：多孔结构 选区激光熔化 正交实验设计 极差与方差分析 回归方程 性能预测 

分 类 号：O436[机械工程—光学工程]