Effects of annealing on periodic microstructure and mechanical properties of inter-layer hammering hybrid wire arc additively manufactured aluminum alloy

Zhou, Siyu; Wu, Hao; Li, Xiaodan; Yin, Jun; Wang, Xiangming; Wang, Jiayan; Li, Bobo; Guo, Xinpeng; Yang, Guang

doi:10.1016/j.cirpj.2023.12.003

Cited by 1 publication

(1 citation statement)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, it usually requires subsequent post-processing, such as mechanical machining and polishing [ 12 , 13 , 14 ]. Compared to metal materials prepared by casting and forging, metal materials prepared through additive manufacturing have significant differences in microstructure and mechanical properties, such as hardness and yield strength [ 15 , 16 , 17 ], which cause corresponding changes in their machinability in the mechanical machining process. Wu et al found significant differences in the cutting machinability of additively manufactured titanium alloy compared to the forged titanium alloy.…”

Section: Introductionmentioning

confidence: 99%

Micro-Milling of Additively Manufactured Al-Si-Mg Aluminum Alloys

He,

Kang,

2024

Materials

View full text Add to dashboard Cite

Additively manufactured aluminum alloy parts attract extensive applications in various felids. To study the machinability of additively manufactured aluminum alloys, micro-milling experiments were conducted on the additively manufactured AlSi7Mg and AlSi10Mg. By comparing the machinability of Al-Si-Mg aluminum alloys with different Si content, the results show that due to the higher hardness of the AlSi10Mg, the cutting forces are higher than the AlSi7Mg by about 11.8% on average. Due to the increased Si content in additively manufactured Al-Si-Mg aluminum alloys, the surface roughness of AlSi10Mg is 26.9% higher than AlSi7Mg on average. The burr morphology of additively manufactured aluminum alloys in micro-milling can be divided into fence shape and branch shape, which are, respectively, formed by the plastic lateral flow and unseparated chips. The up-milling edge exhibits a greater burr width than the down-milling edge. Due to the better plasticity of AlSi7Mg, the burr width of the down-milling edge is 28.1% larger, and the burr width of the up-milling edge is 10.1% larger than the AlSi10Mg. This research can provide a guideline for the post-machining of additively manufactured aluminum alloys.

show abstract