摘要
Selective laser melting(SLM) is currently the subject of major research studies with the objective to directly manufacture high performance metal alloys and metal matrix composite(MMC) parts by consolidating metal and its composite powders.The successful fabrication of the parts by SLM is related with proper selection of materials and processing parameters to provide sufficient densification and consolidation of the powder materials and generate suitable microstructures and mechanical properties.It is also important to minimize or eliminate typical issues such as porosity,balling effect,and thermal stress associated with the powder melting and consolidation at high temperature conditions during SLM process.This paper presents the fundamental material and process aspects,address the technical issues,and review the recent research development in the SLM of metal and MMCs.
Selective laser melting （SLM） is currently the subject of major research studies with the objective to directly manufacture high performance metal alloys and metal matrix composite （MMC） parts by consolidating metal and its composite powders. The successful fabrication of the parts by SLM is related with proper selection of materials and processing parameters to provide sufficient densification and consolidation of the powder materials and generate suitable microstructures and mechanical properties. It is also important to minimize or eliminate typical issues such as porosity,balling effect,and thermal stress associated with the powder melting and consolidation at high temperature conditions during SLM process. This paper presents the fundamental material and process aspects,address the technical issues,and review the recent research development in the SLM of metal and MMCs.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2009年第12期3192-3203,共12页
Chinese Journal of Lasers
关键词
激光熔化技术
金属
复合材料
孔隙度
additive manufacturing
selective laser melting
materials characteristics
process parameters
metal alloys
metal matrix composites
