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Progress in Additive Manufacturing

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22-01-2021 | Review Article

Chemical treatments to enhance surface quality of FFF manufactured parts: a systematic review

Author: Daniel Castro-Casado

Published in: Progress in Additive Manufacturing | Issue 2/2021

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Abstract

Additive manufacturing is an innovative technology with clear differentiation from traditional material forming or removal technologies. A great challenge that is still present when deciding on its use is final surface quality, which varies considerably between methods within this technology as well as between machines, manufacturing parameters, etc. A fairly common post-manufacturing process when using the Fused Filament Fabrication (FFF) method is a chemical treatment, which offers a substantial surface improvement in terms of roughness and visual appearance. An exhaustive systematic study has been carried out on the chemical post-processing methods currently used to reduce surface roughness of polymeric parts manufactured by means of FFF.

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Thompson MK, Moroni G, Vaneker T, Fadel G, Campbell RI, Gibson I, Bernard A, Schulz J, Graf P, Ahuja B, Martina F (2016) Design for additive manufacturing: trends, opportunities, considerations, and constraints. CIRP Ann - Manuf Technol 65:737–760. https://doi.org/10.1016/j.cirp.2016.05.004CrossRef

Sossou G, Demoly F, Montavon G, Gomes S (2018) An additive manufacturing oriented design approach to mechanical assemblies. J Comput Des Eng 5:3–18. https://doi.org/10.1016/j.jcde.2017.11.005CrossRef

Ibrahim D, Ding S, Sun S (2014) Roughness prediction for FDM produced surfaces. Int. Conf Recent Treads Eng Technol 1:70–74. https://doi.org/10.1128/AEM.01338-06CrossRef

Boschetto A, Giordano V, Veniali F (2013) 3D roughness profile model in fused deposition modelling. Rapid Prototyp J 19:240–252. https://doi.org/10.1108/13552541311323254CrossRef

Ahn DK, Kim HC, Lee SH (2005) Determination of fabrication direction to minimize post-machining in FDM by prediction of non-linear roughness characteristics. J Mech Sci Technol 19:144–155. https://doi.org/10.1007/BF02916113CrossRef

Anitha R, Arunachalam S, Radhakrishnan P (2001) Critical parameters influencing the quality of prototypes in fused deposition modelling. J Mater Process Technol 118:385–388. https://doi.org/10.1016/S0924-0136(01)00980-3CrossRef

Nguyen TK, Lee BK (2018) Post-processing of FDM parts to improve surface and thermal properties. Rapid Prototyp J 24:1091–1100. https://doi.org/10.1108/RPJ-12-2016-0207CrossRef

Koch C (2018) Standardization in emerging technologies: the case of additive manufacturing Proc. Data-Driven Soc 1:10–24

Ngo TD, Kashani A, Imbalzano G, Nguyen KTQ, Hui D (2018) Additive manufacturing (3D printing): a review of materials, methods, applications and challenges. Compos Part B Eng 143:172–196. https://doi.org/10.1016/j.compositesb.2018.02.012CrossRef

10.

Boschetto A, Giordano V, Veniali F (2013) Surface roughness prediction in fused deposition modelling by neural networks. Compos Eng 3:2727–2742. https://doi.org/10.1007/s00170-012-4687-xCrossRef

11.

Boschetto A, Bottini L (2014) Accuracy prediction in fused deposition modeling. Int J Adv Manuf Technol 73:913–928. https://doi.org/10.1007/s00170-014-5886-4CrossRef

12.

Sreedhar P, Mathikumar C, Jothi G (2012) Experimental Investigation of Surface Roughness for Fused Deposition Modeled Part with Different Angular Orientation, Int J Adv Des Manuf Technol. 5 (2012) 21–28. http://pakacademicsearch.com/pdf-files/eng/82/21-28.

13.

Panda SK, Padhee S, Sood AK, Mahapatra SS (2009) Optimization of fused deposition modelling (FDM) process parameters using bacterial foraging technique. Intell Inf Manag 01:89–97. https://doi.org/10.4236/iim.2009.12014CrossRef

14.

Chohan JS, Singh R, Boparai KS (2016) Mathematical modelling of surface roughness for vapour processing of ABS parts fabricated with fused deposition modelling. J Manuf Process 24:161–169. https://doi.org/10.1016/j.jmapro.2016.09.002CrossRef

15.

Boschetto A, Giordano V, Veniali F (2012) Modelling micro geometrical profiles in fused deposition process. Int J Adv Manuf Technol 61:945–956. https://doi.org/10.1007/s00170-011-3744-1CrossRef

16.

Vahabli E, Rahmati S (2016) Application of an RBF neural network for FDM parts’ surface roughness prediction for enhancing surface quality. Int J Precis Eng Manuf 17:1589–1603. https://doi.org/10.1007/s12541-016-0185-7CrossRef

17.

Boschetto A, Bottini L, Veniali F (2016) Integration of FDM surface quality modeling with process design. Addit Manuf 12:334–344. https://doi.org/10.1016/j.addma.2016.05.008CrossRef

18.

Boschetto A, Bottini L (2015) Roughness prediction in coupled operations of fused deposition modeling and barrel finishing. J Mater Process Technol 219:181–192. https://doi.org/10.1016/j.jmatprotec.2014.12.021CrossRef

19.

Taufik M, Jain PK (2016) A study of build edge profile for prediction of surface roughness in fused deposition modeling. J Manuf Sci Eng 138:061002. https://doi.org/10.1115/1.4032193CrossRef

20.

Ahn D, Kweon JH, Kwon S, Song J, Lee S (2009) Representation of surface roughness in fused deposition modeling. J Mater Process Technol 209:5593–5600. https://doi.org/10.1016/j.jmatprotec.2009.05.016CrossRef

21.

Rahmati S, Vahabli E (2015) Evaluation of analytical modeling for improvement of surface roughness of FDM test part using measurement results. Int J Adv Manuf Technol 79:823–829. https://doi.org/10.1007/s00170-015-6879-7CrossRef

22.

Galantucci LM, Dassisti M, Lavecchia F, Percoco G (2014) Improvement of fused deposition modelled surface through milling and physical vapour deposition. Res Contrib C 2:87–91

23.

Bryan Michael Blair, Post-Build Processing of Stereolithography Molds, Thesis. (1998)

24.

Gebhardt H (2014) Additive Manufacturing/3D Printing. Carl Hanser Verlag GmbH Co KG.

25.

Kulkarni P, Dutta D (2000) On the integration of layered manufacturing and material removal processes. J Manuf Sci Eng 122:100. https://doi.org/10.1115/1.538891CrossRef

26.

Pandey PM, Reddy NV, Dhande SG (2003) Improvement of surface finish by staircase machining in fused deposition modeling. J Mater Process Technol 132:323–331. https://doi.org/10.1016/S0924-0136(02)00953-6CrossRef

27.

Singh R, Singh M (2017) Surface roughness improvement of cast components in vacuum moulding by intermediate barrel finishing of fused deposition modelling patterns. Proc Inst Mech Eng Part E J Process Mech Eng 231:309–316. https://doi.org/10.1177/0954408915595576CrossRef

28.

Williams RE, Melton VL (1998) Abrasive flow finishing of stereolithography prototypes. Rapid Prototyp J 4:56–67. https://doi.org/10.1108/13552549810207279CrossRef

29.

Grove W, Hull E, Zhang M, Pei ZJ, Ning F, Cong W, Song X (2016) Carbon nanotube reinforced fused deposition modeling using microwave irradiation. Am Soc Mech Eng Digital Collect. https://doi.org/10.1115/msec2016-8790CrossRef

30.

Shaffer S, Yang K, Vargas J, Di Prima MA, Voit W (2014) On reducing anisotropy in 3D printed polymers via ionizing radiation. Polymer (Guildf) 55:5969–5979. https://doi.org/10.1016/j.polymer.2014.07.054CrossRef

31.

Taufik M, Jain PK (2018) Development and analysis of accurate and adaptive FDM post-finishing approach, 3D print. Addit Manuf Technol. https://doi.org/10.1007/978-981-13-0305-0CrossRef

32.

Kumbhar NN, Mulay AV (2016) Finishing of fused deposition modelling (FDM) Printed Parts by CO2 Laser. Int All India Manuf Technol Des Res Conf 1:2–7

33.

Dey A, Yodo N (2019) A systematic survey of FDM process parameter optimization and their influence on part characteristics. J Manuf Mater Process 3:64. https://doi.org/10.3390/jmmp3030064CrossRef

34.

Singh R, Singh S, Kapoor P (2016) Investigating the surface roughness of implant prepared by combining fused deposition modeling and investment casting. Proc Inst Mech Eng Part E J Process Mech Eng 230:403–410. https://doi.org/10.1177/0954408914557374CrossRef

35.

Tak J, Kang DG, Choi J (2017) A lightweight waveguide horn antenna made via 3D printing and conductive spray coating. Microw Opt Technol Lett 59:727–729. https://doi.org/10.1002/mop.30374CrossRef

36.

Kuo CC, Su SJ (2013) A simple method for improving surface quality of rapid prototype. Indian J Eng Mater Sci 20:465–470

37.

Equbal A, Sood A (2014) Metallization on FDM parts using the chemical deposition technique. Coatings 4:574–586. https://doi.org/10.3390/coatings4030574CrossRef

38.

Equbal A, Sood AK (2015) Investigations on metallization in FDM build ABS part using electroless deposition method. J Manuf Process 19:22–31. https://doi.org/10.1016/j.jmapro.2015.03.002CrossRef

39.

Rajaguru J, Duke M, Au CK (2015) Development of rapid tooling by rapid prototyping technology and electroless nickel plating for low-volume production of plastic parts. Int J Adv Manuf Technol 78:31–40. https://doi.org/10.1007/s00170-014-6619-4CrossRef

40.

Zinniel RL (2011) Vapor Smoothing Surface Finishing System. United States patent, US

41.

Priedeman WR Jr, Smith DT (2012) Smoothing method for layered deposition modeling. United States patent, US

42.

Wickramasinghe S, Do T, Tran P (2020) FDM-Based 3D printing of polymer and associated composite: a review on mechanical properties, defects and treatments. Polymers (Basel) 12:1529. https://doi.org/10.3390/polym12071529CrossRef

43.

Mazlan SNH, Alkahari MR, Ramli FR, Maidin NA, Sudin MN, Zolkaply AR (2018) Surface finish and mechanical properties of FDM part after blow cold vapor treatment. J Adv Res Fluid Mech Therm Sci 48:148–155

44.

Roetzel PG (2019) Information overload in the information age: a review of the literature from business administration, business psychology, and related disciplines with a bibliometric approach and framework development. Bus Res 12:479–522. https://doi.org/10.1007/s40685-018-0069-zCrossRef

45.

Kitchenham B (2004) Procedures for performing systematic reviews. Keele Univ 37:79–83. https://doi.org/10.5144/0256-4947.2017.79CrossRef

46.

Moher D, Liberati A, Tetzlaff J, Altman DG, Altman D, Antes G, Atkins D, Barbour V, Barrowman N, Berlin JA, Clark J, Clarke M, Cook D, D’Amico R, Deeks JJ, Devereaux PJ, Dickersin K, Egger M, Ernst E, Gøtzsche PC, Tugwell P (2009) Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement. PLoS Med. https://doi.org/10.1371/journal.pmed.1000097CrossRef

47.

Siddaway AP, Wood AM, Hedges LV (2019) How to do a systematic review: a best practice guide for conducting and reporting narrative reviews, meta-analyses, and meta-syntheses. Annu Rev Psychol 70:747–770. https://doi.org/10.1146/annurev-psych-010418-102803CrossRef

48.

Gusenbauer M, Haddaway NR (2020) Which academic search systems are suitable for systematic reviews or meta-analyses? Evaluating retrieval qualities of Google Scholar, PubMed, and 26 other resources. Res Synth Methods 11:181–217. https://doi.org/10.1002/jrsm.1378CrossRef

49.

J. Vom Brocke, A. Simons, B. Niehaves, K. Riemer, R. Plattfaut, A. Cleven, Reconstructing the giant: On the importance of rigour in documenting the literature search process, 17th Eur. Conf. Inf. Syst. ECIS 2009. (2009).

50.

Eisl C, Falschlunger L, Hofer P, Jungert M (2013) Reporting design-a systematic literature review. ACRN J Financ Risk Perspect 2:27–47

51.

Armitage A, Keeble-Allen D (2008) Undertaking a structured literature review or structuring a literature review: tales from the field. Electron J Bus Res Methods 6:103–114

52.

Boote DN, Beile P (2005) Scholars before researchers: on the centrality of the dissertation literature review in research preparation. Educ Res 34:3–15. https://doi.org/10.3102/0013189X034006003CrossRef

53.

Cooper HM (1988) Organizing knowledge syntheses: a taxonomy of literature reviews. Knowl Soc 1:104–126. https://doi.org/10.1007/BF03177550CrossRef

54.

Castro-Aguirre E, Iñiguez-Franco F, Samsudin H, Fang X, Auras R (2016) Poly(lactic acid)—Mass production, processing, industrial applications, and end of life. Adv Drug Deliv Rev 107:333–366. https://doi.org/10.1016/j.addr.2016.03.010CrossRef

55.

Gupta B, Revagade N, Hilborn J (2007) Poly(lactic acid) fiber: an overview. Prog Polym Sci 32:455–482. https://doi.org/10.1016/j.progpolymsci.2007.01.005CrossRef

56.

Farah S, Anderson DG, Langer R (2016) Physical and mechanical properties of PLA, and their functions in widespread applications — a comprehensive review. Adv Drug Deliv Rev 107:367–392. https://doi.org/10.1016/j.addr.2016.06.012CrossRef

57.

Casavola C, Cazzato A, Moramarco V, Pappalettere C (2016) Orthotropic mechanical properties of fused deposition modelling parts described by classical laminate theory. Mater Des 90:453–458. https://doi.org/10.1016/j.matdes.2015.11.009CrossRef

58.

Colpani A, Fiorentino A, Ceretti E (2019) Characterization of chemical surface finishing with cold acetone vapours on ABS parts fabricated by FDM. Prod Eng 13:437–447. https://doi.org/10.1007/s11740-019-00894-3CrossRef

59.

Coppola A, Impero F, Ruggiero C, Scala F, Squillace A (2019) Set-up of an experimental procedure for the surface smoothing of FDM parts through acetone vapor. Key Eng Mater 1:447–452. https://doi.org/10.4028/www.scientific.net/KEM.813.447CrossRef

60.

Garg A, Bhattacharya A, Batish A (2017) Chemical vapor treatment of ABS parts built by FDM: analysis of surface finish and mechanical strength. Int J Adv Manuf Technol 89:2175–2191. https://doi.org/10.1007/s00170-016-9257-1CrossRef

61.

Havenga SP, de Beer DJ, van Tonder PJM, Campbell RI (2018) The effect of acetone as a post-production finishing technique on entry-level material extrusion part quality. South African J Ind Eng 29:53–64. https://doi.org/10.7166/29-4-1934CrossRef

62.

Jin Y, Wan Y, Zhang B, Liu Z (2017) Modeling of the chemical finishing process for polylactic acid parts in fused deposition modeling and investigation of its tensile properties. J Mater Process Technol 240:233–239. https://doi.org/10.1016/j.jmatprotec.2016.10.003CrossRef

63.

Jin Y, Wan Y, Liu Z (2017) Surface polish of PLA parts in FDM using dichloromethane vapour, MATEC Web Conf. 95 (2017). https://doi.org/https://doi.org/10.1051/matecconf/20179505001.

64.

Kesvarakul R, Limpadapun K (2019) The study and development of factor affecting the smoothness in 3d printed part surface treatment via acetone vapor. Key Eng Mater 1:174–180. https://doi.org/10.4028/www.scientific.net/KEM.821.174CrossRef

65.

Fernandez S, Jimenez M, Porras J, Romero L, Espinosa MM, Dominguez M (2016) Additive manufacturing and performance of functional hydraulic pump impellers in fused deposition modeling technology. J Mech Des Trans ASME 1:138. https://doi.org/10.1115/1.4032089CrossRef

66.

Khan MS, Mishra SB (2020) Minimizing surface roughness of ABS-FDM build parts: an experimental approach. Mater Today Proc 26:1557–1566. https://doi.org/10.1016/j.matpr.2020.02.320CrossRef

67.

Galantucci LM, Lavecchia F, Percoco G (2009) Experimental study aiming to enhance the surface finish of fused deposition modeled parts. CIRP Ann - Manuf Technol 58:189–192. https://doi.org/10.1016/j.cirp.2009.03.071CrossRef

68.

Galantucci LM, Lavecchia F, Percoco G (2010) Quantitative analysis of a chemical treatment to reduce roughness of parts fabricated using fused deposition modeling. CIRP Ann - Manuf Technol 59:247–250. https://doi.org/10.1016/j.cirp.2010.03.074CrossRef

69.

Hambali RH, Cheong KM, Azizan N (2017) Analysis of the influence of chemical treatment to the strength and surface roughness of FDM. IOP Conf Ser Mater Sci Eng. https://doi.org/10.1088/1757-899X/210/1/012063CrossRef

70.

Jayanth N, Senthil P, Prakash C (2018) Effect of chemical treatment on tensile strength and surface roughness of 3D-printed ABS using the FDM process. Virtual Phys Prototyp 13:155–163. https://doi.org/10.1080/17452759.2018.1449565CrossRef

71.

Chohan JS, Singh R, Boparai KS (2016) Parametric optimization of fused deposition modeling and vapour smoothing processes for surface finishing of biomedical implant replicas. Meas J Int Meas Confed 94:602–613. https://doi.org/10.1016/j.measurement.2016.09.001CrossRef

72.

Chohan JS, Singh R, Boparai KS (2020) Vapor smoothing process for surface finishing of FDM replicas. Mater Today Proc 26:173–179. https://doi.org/10.1016/j.matpr.2019.09.013CrossRef

73.

Kozior T, Mamun A, Trabelsi M, Sabantina L, Ehrmann A (2020) Quality of the surface texture and mechanical properties of FDM printed samples after thermal and chemical treatment. Stroj Vestnik/Journal Mech Eng 66:105–113. https://doi.org/10.5545/sv-jme.2019.6322CrossRef

74.

Krishna AV, Faulcon M, Timmers B, Reddy VV, Barth H, Nilsson G, Rosén BG (2020) Influence of different post-processing methods on surface topography of fused deposition modelling samples. Surf Topogr Metrol Prop 8:14001. https://doi.org/10.1088/2051-672X/ab77d7CrossRef

75.

Kuo CC, Wang CW, Lee YF, Liu YL, Qiu QY (2017) A surface quality improvement apparatus for ABS parts fabricated by additive manufacturing. Int J Adv Manuf Technol 89:635–642. https://doi.org/10.1007/s00170-016-9129-8CrossRef

76.

Lalehpour A, Barari A (2016) Post processing for fused deposition modeling parts with acetone vapour bath. IFAC-PapersOnLine 49:42–48. https://doi.org/10.1016/j.ifacol.2016.12.159CrossRef

77.

Mu M, Ou CY, Wang J, Liu Y (2020) Surface modification of prototypes in fused filament fabrication using chemical vapour smoothing. Addit Manuf 31:100972. https://doi.org/10.1016/j.addma.2019.100972CrossRef

78.

Alsoufi MS, Alhazmi MW, Suker DK, Yunus M, Malibari RO (2019) From 3D models to FDM 3D prints: experimental study of chemical treatment to reduce stairs-stepping of semi-sphere profile. AIMS Mater Sci 6:1086–1106. https://doi.org/10.3934/MATERSCI.2019.6.1086CrossRef

79.

Neff C, Trapuzzano M, Crane NB (2018) Impact of vapor polishing on surface quality and mechanical properties of extruded ABS. Rapid Prototyp J 24:501–508. https://doi.org/10.1108/RPJ-03-2017-0039CrossRef

80.

Valerga-Puerta AP, Batista-Ponce M, Fernández-Vidal SR, Girot-Mata F (2018) Post-processing of PLA parts after additive manufacturing by FDM technology. Dyna 93:625–629. https://doi.org/10.6036/8859CrossRef

81.

Valerga AP, Batista M, Fernandez-Vidal SR, Gamez AJ (2019) Impact of chemical post-processing in fused deposition modelling (FDM) on polylactic acid (PLA) surface quality and structure. Polymers (Basel). https://doi.org/10.3390/polym11030566CrossRef

82.

Valerga Puerta AP, Fernandez-Vidal SR, Batista M, Girot F (2019) Fused deposition modelling interfacial and interlayer bonding in PLA post-processed parts. Rapid Prototyp J 26:585–592. https://doi.org/10.1108/RPJ-06-2019-0176CrossRef

83.

Panda SS, Chabra R, Kapil S, Patel V (2020) Chemical vapour treatment for enhancing the surface finish of PLA object produced by fused deposition method using the Taguchi optimization method. SN Appl Sci. https://doi.org/10.1007/s42452-020-2740-1CrossRef

84.

Percoco G, Lavecchia F, Galantucci LM (2012) Compressive properties of FDM rapid prototypes treated with a low cost chemical finishing. Res J Appl Sci Eng Technol 4:3838–3842

85.

Pietanza S, Sorgente D, Percoco G (2017) Enhancing the sustainability of chemical vapour polishing of additive manufactured ABS parts using a vacuum chamber. Rapid Prototy J. https://doi.org/10.1108/RPJ-12-2015-0200CrossRef

86.

Singh R, Singh S, Singh IP, Fabbrocino F, Fraternali F (2017) Investigation for surface finish improvement of FDM parts by vapor smoothing process. Compos Part B Eng 111:228–234. https://doi.org/10.1016/j.compositesb.2016.11.062CrossRef

87.

Suárez-Macías J, Terrones-Saeta JM, Iglesias-Godino FJ, Corpas-Iglesias FA (2020) Surface treatments with dichloromethane to eliminate printing lines on polycarbonate components printed by fused deposition modelling technology. Materials (Basel). https://doi.org/10.3390/ma13122724CrossRef

88.

Tiwary V, Arunkumar P, Deshpande AS, Khorate V (2015) Studying the effect of chemical treatment and fused deposition modelling process parameters on surface roughness to make acrylonitrile butadiene styrene patterns for investment casting process. Int J Rapid Manuf 5:276. https://doi.org/10.1504/ijrapidm.2015.074807CrossRef

89.

Chohan JS, Singh R, Boparai KS (2020) Post-processing of ABS replicas with vapour smoothing for investment casting applications. Sci Proc Natl Acad Sci India Sect A Phys. https://doi.org/10.1007/s40010-020-00669-xCrossRef

Title: Chemical treatments to enhance surface quality of FFF manufactured parts: a systematic review
Author: Daniel Castro-Casado
Publication date: 22-01-2021
Publisher: Springer International Publishing
Published in: Progress in Additive Manufacturing / Issue 2/2021
Print ISSN: 2363-9512
Electronic ISSN: 2363-9520
DOI: https://doi.org/10.1007/s40964-020-00163-1

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