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Evaluation of spatter particles, metal vapour jets, and depressions considering influence of laser incident angle on melt pool behaviour

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Abstract

The building of practical parts involves the application of metal-based powder bed fusion using a laser beam (PBF-LB/M), owing to its high-precision manufacturing. However, the quality of built parts obtained via the PBF-LB/M process varies with the building conditions, and a thorough understanding of the building mechanism has not been achieved owing to the complex and interrelated process parameters involved. The incident angle of the laser beam, which changes on the platform during the laser beam scan owing to the designed three-dimensional data, is among the principle parameters that affect the building aspects. In this study, the melt pool in the single-track formation during the PBF-LB/M process was visualised using a high-speed camera, and the influence of the laser incident angle on the ejection characteristics of spatter particles formed around the laser-irradiated area was investigated. Consequently, the spatter particles and metal vapour jets behaviour varied with the laser incident angle. There was a reduction in number of spatter particles owing to the origin of the incident direction being from behind the laser irradiation area. Additionally, the laser incident angle affected the melt pool morphology because of the depression in the melting. Furthermore, the burial depth of the pores varied with the laser incident angle, and was related to the depth of the depression during the melt pool formation.

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References

  1. ASTM F2792–10e1 (2012) Standard terminology for additive manufacturing technologies. Annual book of ASTM Standard, ASTM International, Pennsylvania 671–673

  2. Vayre B, Vignat F, Villeneuve F (2012) Designing for additive manufacturing Proc CIRP 3:632–637. https://doi.org/10.1016/j.procir.2012.07.108

    Article  Google Scholar 

  3. Plessis AD, Yadroitsava I, Yadroitsav I (2018) Ti6Al4V lightweight lattice structures manufactured by laser powder bed fusion for load-bearing applications. Opt Laser Technol 108:521–528. https://doi.org/10.1016/j.optlastec.2018.07.050

    Article  Google Scholar 

  4. Tan C, Wang D, Ma W, Chan Y, Chen S, Yang Y, Zhou K (2020) Design and additive manufacturing of novel conformal cooling molds. Mater Des 196:109147. https://doi.org/10.1016/j.matdes.2020.109147

  5. Nadimpalli VK, Dahmen T, Valente EH, Mohanty S, Pedersen DB (2019) Multi-material additive manufacturing of steels using laser powder bed fusion. Eur Soc Precis Eng Nanotechnol 240–243

  6. Bayat M, Thanki A, Mohanty S, Witvrouw A, Yang S, Thorborg J, Tiedje NS, Hattel JH (2019) Keyhole-induced porosities in laser-based powder bed fusion (L-PBF) of Ti6Al4V: high-fidelity modelling and experimental validation. Addit Manuf 30:100835. https://doi.org/10.1016/j.addma.2019.100835

  7. Bertoli US, Wolfer AJ, Matthews MJ, Delplanque JR, Schoenung JM (2017) On the limitations of volumetric energy density as a design parameter for selective laser melting. Mater Des 113(5):331–340. https://doi.org/10.1016/j.matdes.2016.10.037

    Article  Google Scholar 

  8. Metelkova J, Kinds Y, Kempen K, Formanoir C, Witvrouw A, Hooreweder BV (2018) On the influence of laser defocusing in selective laser melting of 316L. Addit Manuf 23:161–169. https://doi.org/10.1016/j.addma.2018.08.006

    Article  Google Scholar 

  9. Qiu C, Panwisawas C, Ward M, Basoalto HC, Brooks JW, Attallah MM (2015) On the role of melt flow into the surface structure and porosity development during selective laser melting. Acta Mater 96(1):72–79. https://doi.org/10.1016/j.actamat.2015.06.004

    Article  Google Scholar 

  10. Gu DD, Meiners W, Wissenbach K, Poprawe R (2012) Laser additive manufacturing of metallic components: materials, processes and mechanisms. Int Mater Rev 57(3):133–164. https://doi.org/10.1179/1743280411Y.0000000014

    Article  Google Scholar 

  11. Sato N, Seto N, Shimizu T, Nakano S (2017) Real-time observation of melting behaviour in selective laser melting of metals. Mater Japan 56(12):695–698

    Article  Google Scholar 

  12. Wang D, Yang Y, Liu R, Xiao D, Sun J (2013) Study on the designing rules and processability of porous structure based on selective laser melting (SLM). J Mater Process Technol 213(10):1734–1742. https://doi.org/10.1016/j.jmatprotec.2013.05.001

    Article  Google Scholar 

  13. Arai T (2013) Fundamental engineering science for laser materials processing. Maruzen Publishing Co. Ltd., Tokyo

    Google Scholar 

  14. Ladewig A, Schlick G, Fisser M, Schulze V, Glatzel U (2016) Influence of the shielding gas flow on the removal of process by-products in the selective laser melting process. Addit Manuf 10:1–9. https://doi.org/10.1016/j.addma.2016.01.004

    Article  Google Scholar 

  15. Miyazaki Y, Katayama S (2013) Influence of laser-induced plume on penetration in laser welding. Q J Jpn Weld Soc 31(2):119–125. https://doi.org/10.2207/qjjws.31.119

    Article  Google Scholar 

  16. Bidare P, Bitharas I, Ward RM, Attallah MM, Moore AJ (2018) Fluid and particle dynamics in laser powder bed fusion. Acta Mater 142(1):107–120. https://doi.org/10.1016/j.actamat.2017.09.051

    Article  Google Scholar 

  17. Matthews MJ, Guss G, Khairallah SA, Rubenchik AM, Depond PJ, King WE (2016) Denudation of metal powder layers in laser powder bed fusion processes. Acta Mater 114(1):33–42. https://doi.org/10.1016/j.actamat.2016.05.017

    Article  Google Scholar 

  18. Sendino S, Gardon M, Lartategui F, Martinez S, Lamikiz A (2020) The effect of the laser incidence angle in the surface of L-PBF processed parts. Coat 10(11):1024. https://doi.org/10.3390/coatings10111024

    Article  Google Scholar 

  19. Leuders S, Thöne M, Riemer A, Niendorf T, Tröster T, Richard HA, Maier HJ (2013) On the mechanical behaviour of titanium alloy TiAl6V4 manufactured by selective laser melting: fatigue resistance and crack growth performance. Int J Fatigue 48:300–307. https://doi.org/10.1016/j.ijfatigue.2012.11.011

    Article  Google Scholar 

  20. Furumoto T, Egashira K, Oishi K, Abe S, Yamagu-chi M, Hashimoto Y, Koyano T, Hosokawa A (2021) Experimental investigation into the spatter particle behaviour of maraging steel during selective laser melting. J Adv Mech Des Syst Manuf 15(4):JAMSDM0039. https://doi.org/10.1299/jamdsm.2021jamdsm0039

  21. Guo Q, Zhao C, Escano LI, Young Z, Xiong L, Fezzaa K, Everhart W, Brown B, Sun T, Chen L (2018) Transient dynamics of powder spattering in laser powder bed fusion additive manufacturing process revealed by in-situ high-speed high-energy x-ray imaging. Acta Mater 151:169–180. https://doi.org/10.1016/j.actamat.2018.03.036

    Article  Google Scholar 

  22. Liu Y, Yang Y, Mai S, Wang D, Song C (2015) Investigation into spatter behaviour during selective laser melting of AISI 316L stainless steel powder. Mater Des 87(15):797–806. https://doi.org/10.1016/j.matdes.2015.08.086

    Article  Google Scholar 

  23. Andani MT, Dehghani R, Ravari MRK, Mirzaeifar R, Ni J (2017) Spatter formation in selective laser melting process using multi-laser technology. Mater Des 131(5):460–469. https://doi.org/10.1016/j.matdes.2017.06.040

    Article  Google Scholar 

  24. Wang D, Wu S, Fu F, Mai S, Yang Y, Liu Y, Song C (2017) Mechanisms and characteristics of spatter generation in SLM processing and its effect on the properties. Mater Des 117(5):121–130. https://doi.org/10.1016/j.matdes.2016.12.060

    Article  Google Scholar 

  25. Furumoto T, Ueda T, Kobayashi N, Yassin A, Hosokawa A, Abe S (2009) Study on laser consol-idation of metal powder with Yb:fiber laser—evaluation of line consolidation structure. J Mater Process Technol 209(18–19):5973–5980. https://doi.org/10.1016/j.jmatprotec.2009.07.017

    Article  Google Scholar 

  26. Khairallah SA, Anderson AT, Rubenchik A, King WE (2016) Laser powder-bed fusion additive manufacturing: Physics of complex melt flow and formation mechanisms of pores, spatter, and denudation zones. Acta Mater 108(15):36–45. https://doi.org/10.1016/j.actamat.2016.02.014

    Article  Google Scholar 

  27. Steen WM, Mazumder J (2010) Laser material processing, 4th edn. Springer, London. https://doi.org/10.1007/978-1-84996-062-5

    Book  Google Scholar 

  28. King WE, Barth HD, Castillo VM, Gallegos GF, Gibbs JW, Hahn DE, Kamath C, Rubenchik AM (2014) Observation of keyhole-mode laser melting in laser powder-bed fusion additive manufacturing. J Mater Process Technol 214(12):2915–2925. https://doi.org/10.1016/j.jmatprotec.2014.06.005

    Article  Google Scholar 

  29. Ly S, Rubenchik AM, Khairallah SA, Guss G, Matthews MJ (2017) Metal vapor micro-jet controls material redistribution in laser powder bed fusion additive manufacturing. Sci Rep 7:4085. https://doi.org/10.1038/s41598-017-04237-z

    Article  Google Scholar 

  30. Gao M, Kawahito Y, Kajii S (2017) Observation and understanding in laserwelding of pure titanium at subatmospheric pressure. Opt Express 25(12):13539–13548. https://doi.org/10.1364/OE.25.013539

    Article  Google Scholar 

  31. Cunningham R, Zhao C, Parab N, Kantzos C, Pauza J, Fezzaa K, Sun T, Rollett AD (2019) Keyhole thresh-old and morphology in laser melting revealed by ultrahigh-speed x-ray imaging distribution on the powder bed during selective laser melting. Science 363(6429):849–852. https://doi.org/10.1126/science.aav4687

    Article  Google Scholar 

  32. Young ZA, Guo Q, Parab ND, Zhao C, Qu M, Escano LI, Fezzaa K, Everhart W, Sun T, Chen L (2020) Types of spatter and their features and formation mechanisms in laser powder bed fusion additive manufacturing process. Addit Manuf 36:101438. https://doi.org/10.1016/j.addma.2020.101438

  33. Kawahito Y, Nakada K, Uemura Y, Mizutani M, Nishimoto K, Kawakami H, Katayama S (2018) Relationship between melt flows based on three-dimensional X-ray transmission in-situ observation and spatter reduction by angle of incidence and defocus distancing distance in high-power laser welding of stainless steel. Weld Int 32(7):485–496. https://doi.org/10.1080/01431161.2017.1346887

    Article  Google Scholar 

  34. Kawahito Y, Kinoshita K, Matsumoto N, Mizutani M, Katayama S (2007) Interaction between laser beam and plasma/plume induced in welding of stainless steel with ultra-high power density fiber laser. Q J Jpn Weld Soc 25(3):461–467. https://doi.org/10.2207/qjjws.25.461

    Article  Google Scholar 

  35. Anwar AB, Pham QC (2018) Study of the spatter distribution on the powder bed during selective laser melting. Addit Manuf 22:86–97. https://doi.org/10.1016/j.addma.2018.04.036

    Article  Google Scholar 

  36. Zhao C, Parab ND, Li X, Fezzaa K, Tan W, Rollett AD, Sun T (2020) Critical instability at moving keyhole tip generates porosity in laser melting. Science 370(6520):1080–1086. https://doi.org/10.1126/science.abd1587

    Article  Google Scholar 

  37. Ng GKL, Jarfors AEW, Bi G, Zheng HY (2009) Porosity formation and gas bubble retention in laser metal deposition. Appl Phys A 97:641. https://doi.org/10.1007/s00339-009-5266

    Article  Google Scholar 

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Authors and Affiliations

  1. Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa, 920-1192, Japan

    Kotaro Tsubouchi

  2. Advanced Manufacturing Technology Institute (AMTI), Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa, 920-1192, Japan

    Tatsuaki Furumoto, Mitsugu Yamaguchi & Atsushi Ezura

  3. Daido Steel Co. Ltd., 1-10, Higashisakura 1-chome, Higashi-ku, Nagoya, Aichi, 461-8581, Japan

    Shinnosuke Yamada, Mototsugu Osaki &  Kenji Sugiyama

Authors
  1. Kotaro Tsubouchi
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  2. Tatsuaki Furumoto
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  3. Mitsugu Yamaguchi
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  4. Atsushi Ezura
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  5. Shinnosuke Yamada
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  6. Mototsugu Osaki
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  7. Kenji Sugiyama
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Contributions

TK conducted the in-process monitoring, evaluated the obtained data, organised all data, and wrote the manuscript. FT proposed the experiment and evaluation method to reveal the effect of the laser incident angle on melting phenomena, conducted the in-process monitoring, and evaluated the obtained data. YM evaluated the cross-section of a single track using an optical microscope. EA evaluated the depression at the final edge of a single track using X-ray CT. YS, OM, and SK supplied the metal powder and evaluated the obtained data.

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Correspondence to Kotaro Tsubouchi.

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Tsubouchi, K., Furumoto, T., Yamaguchi, M. et al. Evaluation of spatter particles, metal vapour jets, and depressions considering influence of laser incident angle on melt pool behaviour. Int J Adv Manuf Technol 120, 1821–1830 (2022). https://doi.org/10.1007/s00170-022-08887-w

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