摘要
由于选区激光熔化(SLM)技术加工周期较短、易于成形结构复杂的零件,现已广泛应用于生物医疗、航空航天、汽车和军工制造业等领域。但是由于在成形过程中激光与粉末间复杂的相互作用,选区激光熔化制件的缺陷呈现出多样化的特点,且控制难度加大,这在一定程度上限制了该技术的发展和应用。对于飞溅缺陷的形成机制和控制方法的研究,是近年来研究的热点之一。总结了近年来的相关研究成果,将粉末、熔池及成形层作为线索,从飞溅物对成形件的影响、飞溅物形成原因、监测和控制方法以及未来研究方向4部分阐述SLM过程中飞溅形成机制和控制方法,并展望了未来的发展方向。
Selective laser melting(SLM) technology has been widely used in biomedical,aerospace,automotive and military manufacturing because of its short processing cycle and easy forming of complex components.However,due to the complex interaction between laser and powder in the forming process,the defects of laser selective melting parts show diversified characteristics,and SLM is more difficult to control,which limits the development and application of this technology to a certain extent.The research on the formation mechanism and control methods of spatter defects is one of the research hotspots in recent years.This paper summarizes the relevant recent research achievements.Taking powder,molten pool and forming layer as clues,this review expounds the spatter formation mechanism and control methods in the SLM process from four parts:the influence of spatter on formed parts,the cause of spatter formation,the monitoring and control methods and the future research directions,and the future development direction is proposed.
作者
刘琦
杨光
殷俊
赵朔
安达
Liu Qi;Yang Guang;Yin Jun;Zhao Shuo;An Da(School of Mechatronics Engineering,Shenyang Aerospace University,Shenyang 110136,China;Liaoning High Performance Metal Reinforcement Manufacturing Engineering Research Center,Shenyang 110136,China;Shenyang Aircraft Corporation,Shenyang 110086,China)
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2024年第7期2094-2108,共15页
Rare Metal Materials and Engineering
基金
国家重点研发计划(2022YFE0122600)
中央引导地方科技发展资金(2023JH6/100100044)。
关键词
SLM
缺陷
飞溅
熔池
SLM
defect
spatter
molten pool
作者简介
刘琦,女,1999年生,硕士生,沈阳航空航天大学机电工程学院,辽宁沈阳110136,E-mail:liuqi09189467@163.com;Corresponding author:Yang Guang,Ph.D.,Professor,School of Mechatronics Engineering,Shenyang Aerospace University,Shenyang 110136,P.R.China,E-mail:yangguang@sau.edu.cn
