Hybrid manufacturing(HM)uses additive manufacturing(AM)techniques to prepare complex or fine structures on traditional processing parts,which can fully utilize the advantages of AM to form complex parts,and the high efficiency and low cost of conventional processing methods in manufacturing regular components.A bimetal material was produced by selective laser melting(SLM)of AlSi10Mg on the deformed A16061 alloy substrate in this study.Firstly,the interface characteristics of the two alloys were studied.The results show that a metallurgical interface with a thickness of 100-200 μm was formed as the result of the Marangoni convection during SLM preparation.In detail,the circular flow in the melt pool at the inter-face led to the dilution of alloying elements and the change of microstructure.Moreover,a suitable first-layer thickness can effectively suppress the hot cracks at the interfacial region.Based on the optimized results,the hybrid manufactured samples with different SLM processed volume ratios(SLM-part)to the substrate were prepared to study the mechanical properties and the deformation behavior of hybrid parts.The results show that the volume ratio of the SLM-part to the substrate had an influence on the strength and the elasto-plastic behavior by affecting the distribution of plastic deformation.

Haoxiang Wang;Xin Lin;Nan Kang;Zehao Qin;Shuoqing Shi;Jiacong Li;Weidong Huang

State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi'an 710072,China;Key Laboratory of Metal High Performance Additive Manufacturing and Innovative Design,MIIT China,Northwestern Polytechnical University,Xi'an 710072,China

金属学报（英文版）

[1]Haoxiang Wang;Xin Lin;Nan Kang;Zehao Qin;Shuoqing Shi;Jiacong Li;Weidong Huang-.Interfacial Characteristics and Mechanical Behavior of Hybrid Manufactured AlSi10Mg-Al6061 Bimetal via Selective Laser Melting and Forging)[J].金属学报（英文版）,2022(03):375-388

Bimetal,A16061,elasto

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