激光熔化沉积Al-12Si合金成形工艺研究
Study on Forming Processes of Al-12Si Alloy Fabricated by Laser Melting Deposition
董玉海 1马盼 1杨植禄 1付光义 1谢凯强 1蒋林材 1王仁宪 1王伟1
作者信息
- 1. 上海工程技术大学 材料科学与工程学院,上海 201620
- 折叠
摘要
为了满足结构件的一体式、轻量级以及专属定制的要求,笔者对激光熔化沉积(laser metal deposition,LMD)成形Al-12Si合金激光工艺参数进行了摸索,优化激光成形参数;在此基础之上,开展激光熔化沉积成形实验,通过金相分析、扫描电子显微镜(scanning electron microscope,SEM)等表征手段对激光熔化沉积制备Al-12Si合金显微组织进行表征.结果表明:在激光功率700～800 W、激光扫描速度为 300～360 mm/min的工艺参数下能够获得高度致密的Al-12Si合金.激光熔化沉积Al-12Si合金成形工艺的研究旨在克服传统制造方式的局限性,通过科学的方法优化工艺参数并改善成形质量,最终获得高质量且性能优异的Al-12Si合金部件.
Abstract
In order to meet the requirements of one-piece,lightweight and exclusive customization of structural parts,the laser process parameters of LMD(laser metal deposition)forming of Al-12Si alloy were explored and optimized.On this basis,the experiments of LMD forming were carried out,and the microstructures of Al-12Si alloy prepared by LMD were characterized by metallographic analysis and scanning electron microscope(SEM).The results show that highly dense Al-12Si alloys can be obtained under the laser forming process parameters of 700-800 W laser power and 300-360 mm/min laser scanning speed.The research on the forming process of Al-12Si alloy by laser melting deposition aims to overcome the limitations of the traditional manufacturing methods,optimize the process parameters and improve the forming quality through scientific methods,and ultimately obtain high-quality and excellent properties of Al-12Si alloy parts.
关键词
激光增材制造/激光熔化沉积/Al-12Si/成形工艺/一体式结构件/轻量化Key words
LAM(laser additive manufacturing)/LMD(Laser Melting Deposition)/Al-12Si/forming process/one-piece structural component/lightweight引用本文复制引用
基金项目
上海工程技术大学校级创新项目(CX2315015)
出版年
2024
国家科技期刊平台
NSTL
万方数据