SLM过程中飞溅形成机制和控制方法综述
Review on Formation Mechanism and Control Methods of Spatter in SLM
刘琦 1杨光 1殷俊 2赵朔 1安达1
作者信息
- 1. 沈阳航空航天大学机电工程学院,辽宁沈阳 110136;辽宁省高性能金属增材制造工程研究中心,辽宁沈阳 110136
- 2. 沈阳飞机工业(集团)有限公司,辽宁沈阳 110086
- 折叠
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,现己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.
Abstract
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.
关键词
SLM/缺陷/飞溅/熔池Key words
SLM/defect/spatter/molten pool引用本文复制引用
基金项目
国家重点研发计划(2022YFE0122600)
中央引导地方科技发展资金(2023JH6/100100044)
出版年
2024
NETL
NSTL
万方数据