Selective laser melting of an Al-Si-Mg-Cu alloy: feasibility and processing aspects

被引：15
作者：
Della Gatta, Roberta [1 ]
Del Sol, Irene [2 ]
Caraviello, Antonio [3 ]
Astarita, Antonello [1 ]
机构：
[1] Univ Naples Federico II, Dept Chem Mat & Ind Prod Engn, Ple Tecchio 80, I-80125 Naples, Italy
[2] Univ Cadiz, Fac Engn, Dept Mech Engn & Ind Design, Av Univ Cadiz 10, Puerto Real, Cadiz, Spain
[3] Sophia High Tech, St Anastasia, Italy
来源：
MATERIALS AND MANUFACTURING PROCESSES | 2021年 / 36卷 / 12期
关键词：
Selective; laser; melting; slm; alsi10mg; cu; mixture; process; parameters; power; energy; density;
D O I：
10.1080/10426914.2021.1906900
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A customized Al-Cu-Mg-Si alloy is successfully processed by selective laser melting. AlSi10Mg powder, used as a master alloy, has been mixed with pure Cu powder through a fluidized bed and the obtained powder mix was used as feedstock material for the printing process. To investigate the feasibility of the process and to discuss the effect of the process parameters, a two-step experimental campaign has been carried out: in the first batch of experiments the energy density has been varied to frame the processing window while in the second batch the energy density has been kept constant and the main process parameters have been varied to highlight their influence on the process. Density, porosity, and microhardness have been chosen as output to evaluate the success of the process. The microstructure and composition phase were studied through scanning electron microscopy and X-ray elemental mapping, respectively. A maximum relative density of 97% has been obtained while a predominant role of the laser beam power has been observed.
引用
收藏
页码：1438 / 1449
页数：12
相关论文
共 40 条
[1]   3D printing of Aluminium alloys: Additive Manufacturing of Aluminium alloys using selective laser melting [J].
Aboulkhair, Nesma T. ;
Simonelli, Marco ;
Parry, Luke ;
Ashcroft, Ian ;
Tuck, Christopher ;
Hague, Richard .
PROGRESS IN MATERIALS SCIENCE, 2019, 106
[2]   The microstructure and mechanical properties of selectively laser melted AlSi10Mg: The effect of a conventional T6-like heat treatment [J].
Aboulkhair, Nesma T. ;
Maskery, Ian ;
Tuck, Chris ;
Ashcroft, Ian ;
Everitt, Nicola M. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 667 :139-146
[3]   Cyclic plasticity and microstructure of as-built SLM Ti-6Al-4V: The effect of build orientation (vol 701, pg 85, 2017) [J].
Agius, Dylan ;
Kourousis, Kyriakos I. ;
Wallbrink, Chris ;
Song, Tingting .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2018, 712 :394-396
[4]   Optimum heat treatment of aluminum alloy used in manufacturing of automotive piston components [J].
Akhtar, Maaz ;
Qamar, Sayyad Zahid ;
Muhammad, Muzamil ;
Nadeem, Ali .
MATERIALS AND MANUFACTURING PROCESSES, 2018, 33 (16) :1874-1880
[5]   Physical, mechanical and dry sliding wear properties of an Al-Si-Mg-Ni-Cu alloy under different processing conditions [J].
Ashiri, R. ;
Niroumand, B. ;
Karimzadeh, F. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 582 :213-222
[6]   Defect, Microstructure, and Mechanical Property of Ti-6Al-4V Alloy Fabricated by High-Power Selective Laser Melting [J].
Cao, Sheng ;
Chen, Zhuoer ;
Lim, Chao Voon Samuel ;
Yang, Kun ;
Jia, Qingbo ;
Jarvis, Tom ;
Tomus, Dacian ;
Wu, Xinhua .
JOM, 2017, 69 (12) :2684-2692
[7]   Effect of cleaning gas stream on products in selective laser melting [J].
Dinh Son Nguyen ;
Park, Hong Seok ;
Lee, Chang Myung .
MATERIALS AND MANUFACTURING PROCESSES, 2019, 34 (04) :455-461
[8]   Structural modifications of WC/Co nanophased and conventional powders processed by selective laser melting [J].
Domashenkov, Alexey ;
Borbely, Andras ;
Smurov, Igor .
MATERIALS AND MANUFACTURING PROCESSES, 2017, 32 (01) :93-100
[9]   Porosity Inducing Process Parameters in Selective Laser Melted AlSi10Mg Aluminium Alloy [J].
Ferro, P. ;
Meneghello, R. ;
Razavi, S. M. J. ;
Berto, F. ;
Savio, G. .
PHYSICAL MESOMECHANICS, 2020, 23 (03) :256-262
[10]   Laser absorption behavior of randomly packed powder-bed during selective laser melting of SiC and TiB2 reinforced Al matrix composites [J].
Gu, Dongdong ;
Yang, Ying ;
Xi, Lixia ;
Yang, Jiankai ;
Xia, Mujian .
OPTICS AND LASER TECHNOLOGY, 2019, 119
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