选择性激光熔化AlSi10Mg微波组件表面质量的影响因素研究  

Study on Factors Affecting Surface Quality of Selective Laser Melting AlSi10Mg Microwave Module

作　　者：刘尚阳 杨波[2] 茅健 LIU Shang-yang;YANG Bo;MAO Jian(Shanghai University of Engineering Science,School of Mechanical and Automotive Engineering,Shanghai 201620,China;The 20th Institute of CETC,Xi′an 710068,Shaanxi,China)

机构地区：[1]上海工程技术大学机械与汽车工程学院,上海201620 [2]中国电子科技集团公司第二十研究所,陕西西安710068

出　　处：《铸造》2024年第10期1367-1373,共7页Foundry

基　　金：陕西省重点研发计划(2023-YBCY-110)。

摘　　要：微波组件内部结构复杂且壁薄腔多,对表面质量的要求较高。传统的加工方法影响了微波组件的加工效率和成品率,而选择性激光熔化制造出的金属零件具有均匀细密枝晶组织和优良的质量。本文设计了微波组件脊喇叭的结构,建立了脊喇叭SLM工艺流程,采用正交试验法研究激光功率、扫描速度和扫描间距这三个参数在选择性激光熔化过程中对AlSi10Mg脊喇叭表面质量的影响。试验结果表明,影响表面粗糙度的主要因素是扫描间距,激光功率和扫描速度为次要影响因素,最佳工艺参数组合为激光功率为350 W、扫描速度为1 200 mm/s和扫描间距为0.08 mm,从SLM工艺参数的角度为提高微波组件成形表面精度提供了依据。The internal structure of the microwave module is complex and the wall is thin and there are many cavities,which requires high surface quality.Traditional processing methods affect the processing efficiency and yield of microwave components,but the metal parts produced by Selective Laser Melting(SLM)have uniform dendrite structure and excellent quality.In this paper,the structure of the ridge horn of the microwave module was designed,and the SLM process of the ridge horn was established.The influences of laser power,scanning speed and scanning distance on the surface quality of the ridge horn of AlSi10Mg during selective laser melting were studied by orthogonal experiment.The experimental results showed that the main factors affecting the surface roughness were the scanning distance,and the laser power and scanning speed were the secondary factors.The optimal combination of the laser power was 350W,the scanning speed was 1200 mm/s and the scanning distance was 0.08mm,which provides a basis for improving the surface accuracy of the microwave module from the perspective of SLM process parameters.

关 键 词：微波组件 AlSi10Mg 选择性激光熔化 工艺参数 表面粗糙度 

分 类 号：TG146.21[一般工业技术—材料科学与工程]