Spectroscopic monitoring of laser blown powder directed energy deposition of Alloy 718

被引：5

作者：

Kisielewicz, Agnieszka ^{[1
]}

Sikstrom, Fredrik ^{[1
]}

Christiansson, Anna-Karin ^{[1
]}

Ancona, Antonio ^{[1
,2
]}

机构：

[1] Univ West, Dept Engn Sci, Gustavo Melins Gata 2, S-46132 Trollhattan, Sweden

[2] INF CNR Inst Photon & Nanotechnol, Phys Dept, Via Amendala 173, I-70126 Bari, Italy

来源：

PROCEEDINGS OF THE 8TH SWEDISH PRODUCTION SYMPOSIUM (SPS 2018) | 2018年 / 25卷

关键词：

spectroscopic system; additive manufacturing; laser blown powder directed energy deposition; in-process monitoring;

D O I：

10.1016/j.promfg.2018.06.112

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Experimental explorations of a spectrometer system used for in-process monitoring of the laser blown powder directed energy deposition of Alloy 718 is presented. Additive manufacturing of metals using this laser process experiences repeated heating and cooling cycles which will influence the final microstructure and chemical composition at every given point in the built. The spectrometer system disclosed, under certain process conditions, spectral lines that indicate vaporisation of chromium. Post process scanning electron microscope energy dispersive spectroscopy analysis of the deposited beads confirmed a reduction of chromium. Since the chromium concentration in Alloy 718 is correlated to corrosion resistance, this result encourages to further investigations including corrosion tests. (C) 2018 The Authors. Published by Elsevier B.V.

引用

页码：418 / 425

页数：8

共 15 条

[1] Direct laser deposition process within spectrographic analysis in situ
Bartkowiak, Konrad
[J]. LASER ASSISTED NET SHAPE ENGINEERING 6, PROCEEDINGS OF THE LANE 2010, PART 2, 2010, 5 : 623 - 629
[2] Vision-based defect detection in laser metal deposition process
Barua, Shyam
Liou, Frank
Newkirk, Joseph
Sparks, Todd
[J]. RAPID PROTOTYPING JOURNAL, 2014, 20 (01) : 77 - 86
[3] Identification and qualification of temperature signal for monitoring and control in laser cladding
Bi, Guijun
Gasser, Andres
Wissenbach, Konrad
Drenker, Alexander
Poprawe, Reinhart
[J]. OPTICS AND LASERS IN ENGINEERING, 2006, 44 (12) : 1348 - 1359
[4] Metal Additive Manufacturing: A Review
Frazier, William E.
[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2014, 23 (06) : 1917 - 1928
[5] A camera based feedback control strategy for the laser cladding process
Hofman, J. T.
Pathiraj, B.
van Dijk, J.
de Lange, D. E.
Meijer, J.
[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2012, 212 (11) : 2455 - 2462
[6] Lai G.Y., 2007, High Temperature Corrosion and Materials Applications
[7] Online monitoring of thermo-cycles and its correlation with microstructure in laser cladding of nickel based super alloy
Muvvala, Gopinath
Karmakar, Debapriya Patra
Nath, Ashish Kumar
[J]. OPTICS AND LASERS IN ENGINEERING, 2017, 88 : 139 - 152
[8] Intra-layer closed-loop control of build plan during directed energy additive manufacturing of Ti-6Al-4V
Nassar, Abdalla R.
Keist, Jayme S.
Reutzel, Edward W.
Spurgeon, Todd J.
[J]. ADDITIVE MANUFACTURING, 2015, 6 : 39 - 52
[9] Reed RC, 2008, SUPERALLOYS FUNDAMEN, DOI DOI 10.1017/CBO9780511541285
[10] Segerstark A., 2017, THESIS

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