Precision and performance of aluminum alloy rod of lattice manufactured by laser wire arc additive manufacturing

被引：0

作者：

Zheng B. ^{[1
]}

Yu S. ^{[1
]}

Tang L. ^{[1
]}

Shi Y. ^{[1
]}

机构：

[1] State Key Laboratory of Materials Processing and Die and Mould Technology, Huazhong University of Science and Technology, Wuhan

来源：

Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) | 2022年 / 50卷 / 12期

关键词：

aluminum alloy; laser arc additive manufacturing; laser parameter; performance; precision; rod of lattice;

D O I：

10.13245/j.hust.221207

中图分类号：

学科分类号：

摘要：

The effects of laser parameters on the forming accuracy and properties of 2319 aluminum (Al) alloy lattice rod by laser-arc additive manufacturing were investigated by Box-Benhnken response surface analysis (RSM)．The experimental factors are laser power，laser pulse frequency and duty ratio．The response indexs are diameter，tensile strength and roughness．The results show that the change of laser power has the most significant effect on the rod diameter，and the laser makes the arc energy density more concentrated，leading to the rod diameter larger．The change of laser power has the greatest influence on the roughness of the rod．Appropriate laser power can make the droplet have good spreading property and obtain the rod with smaller roughness．The laser pulse frequency has the greatest influence on the tensile strength of the rod．The pulse laser increases the flow rate in the droplet，reduces the porosity content in the Al alloy，and improves the tensile strength of the rod．Based on the comprehensive evaluation of the three response indexes，the optimal parameters of the rod under the action of laser are as follows：laser power is 353 W，pulse frequency is 60 Hz，duty cycle is 34%，and Al alloy lattice structure is successfully prepared by this process. © 2022 Huazhong University of Science and Technology. All rights reserved.

引用

页码：49 / 57

页数：8

共 17 条

[1]

HAN B, ZHANG Z J, ZHANG Q C, Recent advances in hybrid lattice-cored sandwiches for enhanced multifunctional performance[J], Extreme Mechanics Letters, 10, 1, pp. 58-69, (2017)

[2]

50, 12, pp. 34-40

[3]

DESHPANDE V S, FLECK N A, ASHBY M F．, Effective properties of the octet-truss lattice material[J], Journal of the Mechanics & Physics of Solids, 49, 8, pp. 1747-1769, (2001)

[4]

WADLEY K．, Lattice truss structures from expanded metal sheet[J], Materials & Design, 28, 2, pp. 507-514, (2007)

[5]

KOOISTRA G W，, DESHPANDE V S，, WADLEY H．, Compressive behavior of age hardenable tetrahedral lattice truss structures made from aluminium[J], Acta Mate-rialia, 52, 14, pp. 4229-4237, (2004)

[6]

40, 3, pp. 198-209, (2021)

[7]

LI Y J, YU S F，, CHEN Y, Wire and arc additive manufacturing of aluminum alloy lattice structure[J], Journal of Manufacturing Processes, 50, pp. 510-519, (2020)

[8]

YU Z P, DING D H, PAN Z X, A strut-based process planning method for wire arc additive manufacturing of lattice structures[J], Journal of Manufacturing Processes, 65, pp. 283-298, (2021)

[9]

ZHANG Z D, SUN C S，, XU X K, Surface quality and forming characteristics of thin-wall aluminium alloy parts manufactured by laser assisted MIG arc additive manufacturing[J], International Journal of Lightweight Materials & Manufacture, 1, 2, pp. 89-95, (2018)

[10]

MIAO Q Y, WU D J，, CHAI D S, Comparative study of microstructure evaluation and mechanical properties of 4043 aluminum alloy fabricated by wire-based additive manufacturing[J], Materials & Design, 186, pp. 1-12, (2020)

← 1 2 →