A review on recent developments in binder jetting metal additive manufacturing: materials and process characteristics

References

• Hull CW. Apparatus for production of three-dimensional objects by stereolithography. US4575330 A. 1984.
   Google Scholar
• Baker R. Method of making decorative articles. 1,533,300, 1920.
   Google Scholar
• Greul M, Pintat T, Greulich M. Rapid prototyping of functional metallic parts. Comput Ind. 1995;28:23–28.
   Web of Science ®Google Scholar
• Wong KV, Hernandez A. A review of additive manufacturing. ISRN Mech Eng. 2012;2012:1–10.
   Google Scholar
• ASTM F2792-12a. Standard terminology for additive manufacturing technologies 1,2. 2013.
   Google Scholar
• Milewski JO. Additive manufacturing of metals. Springer Series in Materials Science. 2017; p. 258.
   Google Scholar
• Babu B, Sridhar Babu B. A critical review on recent research methodologies in additive manufacturing. Mater Today Proc. 2017;4(4):9049–9059.
   Google Scholar
• Yang S, Tang Y, Zhao YF. A new part consolidation method to embrace the design freedom of additive manufacturing. J Manuf Process. 2015;20: 444–449.
   Web of Science ®Google Scholar
• Nickels L. AM and aerospace: an ideal combination. Met Powder Rep. 2015;70(6):300–303.
   Google Scholar
• Javaid M, Haleem A. Additive manufacturing applications in medical cases: A literature based review. Alexandria J Med. 2018;54(4):411–422.
   Web of Science ®Google Scholar
• Attaran M. The rise of 3-D printing: The advantages of additive manufacturing over traditional manufacturing. Bus Horiz. 2017;60:677–688.
   Web of Science ®Google Scholar
• Sachs EM, Haggerty JS, Williams PA. Three-dimensional printing techniques. 5204055, 1993.
   Google Scholar
• Boris Hein S, Aumund-Kopp C, Barthel B. Binder Jet metal AM: process chain considerations when moving towards series production. Met Addit Manuf. 2018;4 (4):79–85.
   Google Scholar
• Zhang S, Miyanaji H, Yang L, et al. An experimental study of ceramic dental porcelain materials using a 3D print (3DP) process. Solid Freeform Fabrication Symposium. 2014; 991–1011.
   Google Scholar
• Vangapally S, Agarwal K, Sheldon A, et al. Effect of lattice design and process parameters on dimensional and mechanical properties of binder Jet Additively manufactured stainless steel 316 for bone scaffolds. Procedia Manuf. 2017;10:750–759.
   Google Scholar
• Qian M. Metal powder for additive manufacturing. JOM. 2015;67(3):536–537.
   Web of Science ®Google Scholar
• Mostafaei A, Hughes ET, Hilla C, et al. Data on the densification during sintering of binder jet printed samples made from water- and gas-atomized alloy 625 powders. Data Br. 2017;10:116–121.
   PubMed Web of Science ®Google Scholar
• Sheydaeian E, Sarikhani K, Chen P, et al. Material process development for the fabrication of heterogeneous titanium structures with selective pore morphology by a hybrid additive manufacturing process. Mater Des. 2017;135:142–150.
   Web of Science ®Google Scholar
• Sheydaeian E, Toyserkani E. Additive manufacturing functionally graded titanium structures with selective closed cell layout and controlled morphology. Int J Adv Manuf Technol. 2018;96(9–12):3459–3469.
   Web of Science ®Google Scholar
• Slotwinski JA, Garboczi EJ. Metrology needs for metal additive manufacturing powders. JOM. 2015;67(3):538–543.
   Web of Science ®Google Scholar
• Benson JM, Snyders E. The need for powder characterisation in the additive manufacturing industry and the establishment of a national facility. South African J Ind Eng. 2015;26(2):104–114.
   Web of Science ®Google Scholar
• Bochuan Liu RH, Wildman R, Tuck C, et al. Investigation the effect of particle size distribution on processing parameters optimisation in selective laser melting process. Solid Freeform Fabrication Symposium. 2011: 227–238.
   Google Scholar
• Elliott AM, Nandwana P, Siddel D, et al. A method for measuring powder bed density in binder jet additive manufacturing process and the powder feedstock characteristics influencing the powder bed density. Solid Freeform Fabrication Symposium. 2016: 1031–1037.
   Google Scholar
• Oh J-W, Nahm S, Kim B, et al. Anisotropy in green Body bending strength due to additive direction in the binder-Jetting additive manufacturing process. Korean J Met Mater. 2019;57(4):227–235.
   Web of Science ®Google Scholar
• German RM. Particle packing characteristics. 1989.
   Google Scholar
• ASTM B 527-15. Standard test method for tap density of metal powders and compounds; 2015.
   Google Scholar
• Santomaso A, Lazzaro P, Canu P. Powder flowability and density ratios: the impact of granules packing. Chem Eng Sci. 2003;58:2857–2874.
   Web of Science ®Google Scholar
• ASTM B923 - 16. Standard test method for metal powder skeletal density by helium or nitrogen pycnometry. Subcommittee B09.03, 2016.
   Google Scholar
• Viana M, Jouannin P, Pontier C, et al. About pycnometric density measurements. Talanta. 2002;57:583–593.
   PubMed Web of Science ®Google Scholar
• Sohn HY, Moreland C. The effect of particle size distribution on packing density. Can J Chem Eng. 1968;46(3):162–167.
   Web of Science ®Google Scholar
• Lu G, Third JR, Müller CR. Discrete element models for non-spherical particle systems: from theoretical developments to applications. Chem Eng Sci. 2015;127:425–465.
   Web of Science ®Google Scholar
• Höhner D, Wirtz S, Scherer V. A study on the influence of particle shape on the mechanical interactions of granular media in a hopper using the discrete element method. Powder Technol. 2015;278:286–305.
   Web of Science ®Google Scholar
• Byholm T, Toivakka M, Westerholm J. Effective packing of 3-dimensional voxel-based arbitrarily shaped particles. Powder Technol. 2009;196:139–146.
   Web of Science ®Google Scholar
• Dong K, Wang C, Yu A. A novel method based on orientation discretization for discrete element modeling of non-spherical particles. Chem Eng Sci. 2015;126:500–516.
   Web of Science ®Google Scholar
• Jia X, Gan M, Williams RA, et al. Validation of a digital packing algorithm in predicting powder packing densities. Powder Technol. 2007;174:10–13.
   Web of Science ®Google Scholar
• Mostafaei A, Toman J, Stevens EL, et al. Microstructural evolution and mechanical properties of differently heat-treated binder jet printed samples from gas- and water-atomized alloy 625 powders. Acta Mater. 2017;124:280–289.
   Web of Science ®Google Scholar
• Popovich A, Sufiiarov V. Metal powder additive manufacturing. In: New trends in 3D printing. 2016;3: 215–236.
   Google Scholar
• Turker M, Godlinski D, Petzoldt F. Effect of production parameters on the properties of IN 718 superalloy by three-dimensional printing. Mater Charact. 2008;59(12):1728–1735.
   Web of Science ®Google Scholar
• Clayton J, Millington-Smith D, Armstrong B. The application of powder rheology in additive manufacturing. JOM. 2015;67(3):544–548.
   Web of Science ®Google Scholar
• Amado KWA, Schmid M, Levy G. Advances in SLS powder characterization. Proceedings of Solid Freeform Fabrication Symposium 2011;22(January 2011). p. 438–452.
   Google Scholar
• Spierings AB, Voegtlin M, Bauer T, et al. Powder flowability characterisation methodology for powder-bed-based metal additive manufacturing. Prog Addit Manuf. 2016;1(1–2):9–20.
   Google Scholar
• Dvořáčková K, Rabiškovǎ M, Masteiková R, et al. Soluble filler as a dissolution profile modulator for slightly soluble drugs in matrix tablets. Drug Dev Ind Pharm. 2009;35(8):930–940.
   PubMed Web of Science ®Google Scholar
• Saw HY, Davies CE, Paterson AHJ, et al. Correlation between powder flow properties measured by shear testing and Hausner ratio. Procedia Eng. 2015;102:218–225.
   Google Scholar
• Grey RO, Beddow JK. On the Hausner ratio and its relationship to some properties of metal powders. Powder Technol. 1969;2(6):323–326.
   Web of Science ®Google Scholar
• Bai Y, Wagner G, Williams CB. Effect of bimodal powder mixture on powder packing density and sintered density in binder Jetting of metals. Annual International Solid Freeform Fabrication Symposium; 2015. p. 62.
   Google Scholar
• Roberts AW. Vibration of fine powders and its application. In: Fayed ME, editor. Handbook of Powder Science & Technology. Boston (MA, USA): Springer US; 1997. p. 146–201.
   Google Scholar
• Gibson I, Rosen D, Stucker B. Additive manufacturing technologies: 3D printing, rapid prototyping, and direct digital manufacturing, Second Edition. 2015: 1–498.
   Google Scholar
• Haeri S, Wang Y, Ghita O, et al. Discrete element simulation and experimental study of powder spreading process in additive manufacturing. Powder Technol. 2017;306:45–54.
   Web of Science ®Google Scholar
• Cao S, Qiu Y, Wei X-F, et al. Experimental and theoretical investigation on ultra-thin powder layering in three dimensional printing (3DP) by a novel double-smoothing mechanism. J Mater Process Tech. 2015;220:231–242.
   Web of Science ®Google Scholar
• Meier C, Weissbach R, Weinberg J, et al. Modeling and characterization of cohesion in fine metal powders with a focus on additive manufacturing process simulations. Powder Technol. 2019;343:855–866.
   Web of Science ®Google Scholar
• Sheydaeian E, Fishman Z, Vlasea M, et al. On the effect of throughout layer thickness variation on properties of additively manufactured cellular titanium structures. Addit Manuf. 2017;18:40–47.
   Web of Science ®Google Scholar
• Miyanaji H, Zhang S, Lassell A, et al. Process development of porcelain ceramic material with binder jetting process for dental applications. JOM. 2016;68(3):831–841.
   Web of Science ®Google Scholar
• Miyanaji H, Zhang S, Lassell A, et al. Optimal process parameters for 3D printing of porcelain structures. Procedia Manuf. 2016;5:870–887.
   Google Scholar
• Miyanaji H, Orth M, Akbar JM, et al. Process development for green part printing using binder jetting additive manufacturing. Front Mech Eng. 2018;13(4):504–512.
   Web of Science ®Google Scholar
• Bai Y, Wagner G, Williams CB. Effect of particle size distribution on powder packing and sintering in binder Jetting additive manufacturing of metals. J Manuf Sci Eng. 2017;139(8):081019.
   Web of Science ®Google Scholar
• Hsu TJ, Lai WH. Manufacturing parts optimization in the three-dimensional printing process by the Taguchi method. J Chinese Inst Eng Trans Chinese Inst Eng A/Chung-kuo K. Ch’eng Hsuch K’an. 2010;33(1):121–130.
   Web of Science ®Google Scholar
• Shrestha S, Manogharan G. Optimization of binder jetting using Taguchi method. JOM. 2017;69(3):491–497.
   Web of Science ®Google Scholar
• Lee S-JJ. Powder Layer Generation for Three Dimensional Printing. Massachusetts Institute of Technology. 1992.
   Google Scholar
• Chen H, Zhao YF. Process parameters optimization for improving surface quality and manufacturing accuracy of binder jetting additive manufacturing process. Rapid Prototyp J. 2016;22(3):527–538.
   Web of Science ®Google Scholar
• Gaytan SM, et al. Fabrication of barium titanate by binder jetting additive manufacturing technology. Ceram Int. 2015;41(5):6610–6619.
   Web of Science ®Google Scholar
• Chen H. A process modelling and parameters optimization and recommendation system for binder jetting additive manufacturing process. McGill University; 2015 (Master Thesis).
   Google Scholar
• Miyanaji H, Zhang S, Yang L. A new physics-based model for equilibrium saturation determination in binder jetting additive manufacturing process. Int J Mach Tools Manuf. 2018;124(September 2017):1–11.
   Web of Science ®Google Scholar
• Miyanaji H, Yang L. Equilibrium saturation in binder jetting additive manufacturing processes: theoretical model vs. experimental observations. In Solid Freeform Fabrication Symposium – Additive Manufacturing. 2016;I. p. 1945–1959.
   Google Scholar
• Oostveen MLM, Meesters GMH, van Ommen JR. Quantification of powder wetting by drop penetration time. Powder Technol. 2015;274:62–66.
   Web of Science ®Google Scholar
• Hapgood KP, Litster JD, Biggs SR, et al. Drop penetration into porous powder beds. J Colloid Interface Sci. 2002;253(2):353–366.
   PubMed Web of Science ®Google Scholar
• Nefzaoui E, Skurtys O. Impact of a liquid drop on a granular medium: inertia, viscosity and surface tension effects on the drop deformation. Exp Therm Fluid Sci. 2012;41:43–50.
   Web of Science ®Google Scholar
• Tan H. Three-dimensional simulation of micrometer-sized droplet impact and penetration into the powder bed. Chem Eng Sci. 2016;153:93–107.
   Web of Science ®Google Scholar
• Parab ND, Barnes JE, Zhao C, et al. Real time observation of binder jetting printing process using high-speed X-ray imaging. Sci Rep. 2499;9(28–30):2499.
   PubMed Web of Science ®Google Scholar
• Tan MXL, Wong LS, Lum KH, et al. Foam and drop penetration kinetics into loosely packed powder beds. Chem Eng Sci. 2009;64(12):2826–2836.
   Web of Science ®Google Scholar
• Miyanaji H, Momenzadeh N, Yang L. Effect of printing speed on quality of printed parts in binder jetting process. Addit Manuf. 2018;20:1–10.
   Web of Science ®Google Scholar
• Wang Y, Zhao YF. Investigation of sintering shrinkage in binder Jetting additive manufacturing process. Procedia Manuf. 2017;10:779–790.
   Google Scholar
• Gardan J. Method for characterization and enhancement of 3D printing by binder jetting applied to the textures quality. Assem Autom. 2017;37(2):162–169.
   Web of Science ®Google Scholar
• “Ethylene Glycol”. [Online]. Available from: https://antifreeze-science.weebly.com/pros–cons.html.
   Google Scholar
• Do T, Kwon P, Shin CS. Process development toward full-density stainless steel parts with binder jetting printing. Int J Mach Tools Manuf. 2017;121(November 2016):50–60.
   Web of Science ®Google Scholar
• Elliott A, AlSalihi S, Merriman AL, et al. Infiltration of nanoparticles into porous binder Jet printed parts. Am J Eng Appl Sci. 2016;9(1):128–133.
   Google Scholar
• Bailey A, Merriman A, Elliott A, et al. Preliminary testing of nanoparticle effectiveness in binder jetting applications. In 27th Annual International Solid Freeform Fabrication Symposium, 2016. p. 1069–1077.
   Google Scholar
• Sun L, Kim Y-H, Kim D-W, et al. Densification and properties of 420 stainless steel produced by three-dimensional printing With addition of Si3N4 powder. J Manuf Sci Eng. 2009;131:061001.
   Web of Science ®Google Scholar
• Cordero ZC, Siddel DH, Peter WH, et al. Strengthening of ferrous binder jet 3D printed components through bronze infiltration. Addit Manuf. 2017;15:87–92.
   Web of Science ®Google Scholar
• Williams CB, Cochran JK, Rosen DW. Additive manufacturing of metallic cellular materials via three-dimensional printing. Int J Adv Manuf Technol. 2011;53(1–4):231–239.
   Web of Science ®Google Scholar
• Xiong Y, Qian C, Sun J. Fabrication of porous titanium implants by three-dimensional printing and sintering at different temperatures. Dent Mater J. 2012;31:815–820.
   PubMed Web of Science ®Google Scholar
• Dilip JJS, Miyanaji H, Lassell A, et al. A novel method to fabricate TiAl intermetallic alloy 3D parts using additive manufacturing. Def Technol. 2017;13(2):72–76.
   Web of Science ®Google Scholar
• Mostafaei A, Stevens EL, Hughes ET, et al. Powder bed binder jet printed alloy 625: densification, microstructure and mechanical properties. Mater Des. 2016;108:126–135.
   Web of Science ®Google Scholar
• Mostafaei A, Stevens EL, Ference JJ, et al. Binder jet printing of partial denture metal framework from metal powder. In: Materials Science and Technology Conference and Exhibition. 2017; Vol. 1, p. 289–291.
   Google Scholar
• Nandwana P, Elliott AM, Siddel D, et al. Powder bed binder jet 3D printing of Inconel 718: densification, microstructural evolution and challenges. Curr Opin Solid State Mater Sci. 2017;21:207–218.
   Web of Science ®Google Scholar
• Bai Y, Williams CB. An exploration of binder jetting of copper. Rapid Prototyp J. 2015;21(2):177–185.
   Web of Science ®Google Scholar
• Levy A, Miriyev A, Elliott A, et al. Additive manufacturing of complex-shaped graded TiC/steel composites. Mater Des. 2017;118:198–203.
   Web of Science ®Google Scholar
• Fu Z, Schlier L, Travitzky N, et al. Three-dimensional printing of SiSiC lattice truss structures. Mater Sci Eng A. 2013;560:851–856.
   Web of Science ®Google Scholar
• Mayara M, et al. Fabrication of Ti 3 SiC 2 -based composites via three-dimensional printing: influence of processing on the final properties. Ceram Int. 2016;42:9557–9564.
   Web of Science ®Google Scholar
• Paranthaman MP, et al. Binder jetting: A novel NdFeB bonded magnet fabrication process. JOM. 2016;68(7):1978–1982.
   Web of Science ®Google Scholar
• Li L, et al. A novel method combining additive manufacturing and alloy infiltration for NdFeB bonded magnet fabrication. J Magn Magn Mater. 2017;438:163–167.
   Web of Science ®Google Scholar
• Rabinskiy L, Ripetsky A, Sitnikov S, et al. Fabrication of porous silicon nitride ceramics using binder jetting technology. IOP Conf Ser Mater Sci Eng. 2016;140:012023.
   Google Scholar
• Lu K, Hiser M, Wu W. Effect of particle size on three dimensional printed mesh structures. Powder Technol. 2008;192:178–183.
   Web of Science ®Google Scholar
• Lu K, Reynolds WT. 3DP process for fine mesh structure printing. Powder Technol. 2008;187(1):11–18.
   Web of Science ®Google Scholar
• Bai Y, Williams CB. Binderless jetting: additive manufacturing of metal parts via Jetting nanoparticles. International Solid Freeform Fabrication Symposium 2017. p. 249–260.
   Google Scholar
• Bai Y, Williams CB. Binder jetting additive manufacturing with a particle-free metal ink as a binder precursor. Mater Des. 2018;147:146–156.
   Web of Science ®Google Scholar
• Zhao H, Ye C, Fan Z, et al. 3D printing of CaO-based ceramic core using nanozirconia suspension as a binder. J Eur Ceram Soc. 2017;37:5119–5125.
   Web of Science ®Google Scholar
• Godlinski D, Morvan S. Steel parts with tailored material Gradients by 3D-printing using nano-particulate Ink. Mater Sci Forum. 2005;492–493:679–684.
   Google Scholar
• Breu F, Guggenbichler S, Wollmann J. Three dimensional printing of Tungsten carbide-cobalt using a cobalt oxide precursor. Solid Freeform Fabrication Symposium. 2003;13:616–631.
   Google Scholar
• Bai Y, Wall C, Pham H, et al. Characterizing binder-powder interaction in binder Jetting additive manufacturing Via Sessile drop Goniometry. J Manuf Sci Eng Trans ASME. 2019;141(1):011005.
   Web of Science ®Google Scholar
• German RM. Sintering theory and practice. Whiley-VCH, 1996.
   Google Scholar
• Do T, et al. Improving structural integrity with boron-based additives for 3D printed 420 stainless steel. Procedia Manuf. 2015;1:263–272.
   Google Scholar
• Kim Y. Densification and properties evolution of stainless steel alloys fabricated by three-dimensional printing. Washington State University; 2009.
   Google Scholar
• Doyle M, Agarwal K, Sealy W, et al. Effect of layer thickness and orientation on mechanical behavior of binder Jet stainless steel 420 + bronze parts. Procedia Manuf. 2015;1:251–262.
   Google Scholar
• Kumar A, Bai Y, Eklund A, et al. Effects of hot isostatic pressing on copper parts fabricated via binder jetting. Procedia Manuf. 2017;10:935–944.
   Google Scholar
• Yegyan Kumar A, Bai Y, Eklund A, et al. The effects of hot isostatic pressing on parts fabricated by binder jetting additive manufacturing. Addit Manuf. 2018;24:115–124.
   Web of Science ®Google Scholar
• Sicre-Artalejo J, Petzoldt F, Campos M, et al. High-density inconel 718: three-dimensional printing coupled with hot isostatic pressing. Int J Powder Metall. 2008;44(1):35–43.
   Web of Science ®Google Scholar
• Enneti RK, Prough KC, Wolfe TA, et al. Sintering of WC-12%Co processed by binder jet 3D printing (BJ3DP) technology. Int J Refract Met Hard Mater. 2017 2017;71:28–35.
   Web of Science ®Google Scholar
• Fayazfar H, et al. A critical review of powder-based additive manufacturing of ferrous alloys: process parameters, microstructure and mechanical properties. Mater Des. 2018;144:98–128.
   Web of Science ®Google Scholar
• Verlee B, Dormal T, Lecomte-Beckers J. Density and porosity control of sintered 316 l stainless steel parts produced by additive manufacturing. Powder Metall. 2012;55(4):260–267.
   Web of Science ®Google Scholar
• Ziaee M, Tridas EM, Crane NB. Binder-Jet printing of fine stainless steel powder with varied final density. JOM. 2017;69(3):592–596.
   Web of Science ®Google Scholar
• Tang Y, Zhou Y, Hoff T, et al. Elastic modulus of 316 stainless steel lattice structure fabricated via binder jetting process. Mater Sci Technol. 2016;32(7):648–656.
   Web of Science ®Google Scholar
• Godlinski D, Veltl G. Three dimensional printing of PM-tool steels. Euro PM2005. 2005;3:49–54.
   Google Scholar
• Zhang B, Zhan Z, Cao Y, et al. Metallic 3-D printed antennas for millimeter- and submillimeter wave applications. IEEE Trans Terahertz Sci Technol. 2016;6(4):592–600.
   Web of Science ®Google Scholar
• Mostafaei A, Behnamian Y, Krimer YL, et al. Effect of solutionizing and aging on the microstructure and mechanical properties of powder bed binder jet printed nickel-based superalloy 625. Mater Des. 2016;111:482–491.
   Web of Science ®Google Scholar
• Mostafaei A, Behnamian Y, Krimer YL, et al. Brief data overview of differently heat treated binder jet printed samples made from argon atomized alloy 625 powder. Data Br. 2016;9:556–562.
   PubMed Web of Science ®Google Scholar
• Mostafaei A, Neelapu SHVR, Kisailus C, et al. Characterizing surface finish and fatigue behavior in binder-jet 3D-printed nickel-based superalloy 625. Addit Manuf. 2018;24:200–209.
   Web of Science ®Google Scholar
• Rahaman MN. Ceramic processing and sintering. CRC Press; 2003.
   Google Scholar
• Liu Y, Tandon R, German RM. Modeling of supersolidus liquid phase sintering: I. Capillary force. Metall Mater Trans A. 1995;26(9):2415–2422.
   Web of Science ®Google Scholar
• Liu Y, Tandon R, German RM. Modeling of supersolidus liquid phase sintering: II. Densification. Metall Mater Trans A. 1995;26(9):2423–2430.
   Web of Science ®Google Scholar
• Sheydaeian E, Toyserkani E. A new approach for fabrication of titanium-titanium boride periodic composite via additive manufacturing and pressure-less sintering. Compos Part B Eng. 2018;138:140–148.
   Web of Science ®Google Scholar
• Wu X. Review of alloy and process development of TiAl alloys. Intermetallics. 2006;14(10–11):1114–1122.
   Web of Science ®Google Scholar
• Stevens E, Schloder S, Bono E, et al. Density variation in binder jetting 3D-printed and sintered Ti-6Al-4V. Addit Manuf. 2018;22(May):746–752.
   Web of Science ®Google Scholar
• Snelling DA, Williams CB, Suchicital CTA, et al. Binder jetting advanced ceramics for metal-ceramic composite structures. Int J Adv Manuf Technol. 2017;92(1–4):531–545.
   Web of Science ®Google Scholar
• Halbig MC, Singh M. Additive manufacturing of SiC-based ceramics and ceramic matrix composites. 11th International Conference on Ceramic Materials and components for energy and environmental Applications; Vancouver, Canada, 2015.
   Google Scholar
• Li L, Post B, Kunc V, et al. Additive manufacturing of near-net-shape bonded magnets: Prospects and challenges. Scr Mater. 2017;135:100–104.
   Web of Science ®Google Scholar
• Frazier WE. Metal additive manufacturing: a review. ASM Int. 2014.
   Google Scholar