On the effect of part orientation on stress distribution in AlSi10Mg specimens fabricated by laser powder bed fusion (L-PBF)

被引：22

作者：

Salmi, Alessandro ^{[1
]}

Piscopo, Gabriele ^{[1
]}

Atzeni, Eleonora ^{[1
]}

Minetola, Paolo ^{[1
]}

Iuliano, Luca ^{[1
]}

机构：

[1] Politecn Torino, Dept Management & Prod Engn DIGEP, Cso Duca Abruzzi 24, I-10129 Turin, Italy

来源：

11TH CIRP CONFERENCE ON INTELLIGENT COMPUTATION IN MANUFACTURING ENGINEERING | 2018年 / 67卷

关键词：

Residual stresses; Powder bed fusion; AlSi10Mg; Hole-drilling method; Orientation; RESIDUAL-STRESSES; MICROSTRUCTURE;

D O I：

10.1016/j.procir.2017.12.198

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

The freedom of design of AM products suffers from some limitations in case of powder bed metal processes, because AM part's integrity is affected by the residual stress state that is a consequence of the thermal history during part fabrication. Aim of this work is to evaluate the effect of part orientation on stress distribution. Thus, flat samples of AlSi10Mg alloy built along different orientations are produced by means of laser powder bed fusion (L-PBF) process, also known as Selective Laser Melting (SLM). Then, the semi-destructive hole-drilling method is used to evaluate residual stresses beneath the surfaces of samples. The outcomes of the study can be exploited to define design rules in order to both minimize support structures and optimize the orientation of the part in the building volume. (C) 2017 The Authors. Published by Elsevier B.V.

引用

页码：191 / 196

页数：6

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