Digital high-efficiency print forming method and device for multi-material casting molds

doi:10.1007/s11465-019-0574-6

Front. Mech. Eng.

2020, Vol. 15

Issue (2) : 328-337 https://doi.org/10.1007/s11465-019-0574-6

RESEARCH ARTICLE

Digital high-efficiency print forming method and device for multi-material casting molds

Zhongde SHAN¹(

), Zhi GUO^1,², Dong DU², Feng LIU¹, Wenjiang LI¹

¹. State Key Laboratory of Advanced Forming Technology and Equipment, China Academy of Machinery Science and Technology, Beijing 100044, China
². Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China

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Abstract

Sand mold 3D printing technology based on the principle of droplet ejection has undergone rapid development in recent years and has elicited increasing attention from engineers and technicians. However, current sand mold 3D printing technology exhibits several problems, such as single-material printing molds, low manufacturing efficiency, and necessary post-process drying and heating for the manufacture of sand molds. This study proposes a novel high-efficiency print forming method and device for multi-material casting molds. The proposed method is specifically related to the integrated forming of two-way coating and printing and the short-flow manufacture of roller compaction and layered heating. These processes can realize the high-efficiency print forming of high-performance sand molds. Experimental results demonstrate that the efficiency of sand mold fabrication can be increased by 200% using the proposed two-way coating and printing method. The integrated forming method for layered heating and roller compaction presented in this study effectively shortens the manufacturing process for 3D-printed sand molds, increases sand mold strength by 63.8%, and reduces resin usage by approximately 30%. The manufacture of multi-material casting molds is demonstrated on typical wheeled cast-iron parts. This research provides theoretical guidance for the engineering application of sand mold 3D printing.

Keywords multi-material casting mold 3D printing efficient print forming method

Corresponding Author(s): Zhongde SHAN

Just Accepted Date: 12 February 2020 Online First Date: 11 March 2020 Issue Date: 25 May 2020

Cite this article:

Zhongde SHAN,Zhi GUO,Dong DU, et al. Digital high-efficiency print forming method and device for multi-material casting molds[J]. Front. Mech. Eng., 2020, 15(2): 328-337.

URL:

https://academic.hep.com.cn/fme/EN/10.1007/s11465-019-0574-6
https://academic.hep.com.cn/fme/EN/Y2020/V15/I2/328

Fig.1 Schematics of multi-material sand molds: (a) Combination of a number of single-material sand molds and (b) combination of different types of multi-material sand molds.

Fig.2 Multi-material sand mold 3D print forming method: (a) Multi-material sand layer and (b) mold.

Fig.3 Two-way coating and printing integration forming method: (a) Forward printing process; (b) reverse printing process; and (c) photograph of two-way coating and printing integration device.

Fig.4 Layered heating and compaction devices: (a) Coating and compaction device; (b) heating device; and (c) compaction schematic.

Fig.5 Two-way coating and printing integrated forming process.

Fig.6 Infrared heating process during sand mold printing.

Fig.7 Effects of infrared heating temperature on the tensile strength of printed sand molds: (a) Relationship between tensile strength and heating temperature and (b) comparison between the tensile strength of sand molds produced using two different processes.

Fig.8 Sections of printed sand molds at different infrared heating temperatures.

Fig.9 Multi-material sand molds for the cast-iron parts of a typical pulley: (a) Top and (b) bottom sand molds.

Fig.10 Pouring of pulley castings: (a) Casting process and (b) casted blank.

Fig.11 Cross-sectional graphite formed at the intersection of the pulley blank’s rim and spoke: (a) #1 surface layer, (b) #1 core, (c) #2 surface layer, and (d) #2 core.

Tab.1 Cross-sectional graphite length at the intersection of the pulley blank’s rim and spoke

Tab.2 Cross-sectional tensile strength at the intersection of the pulley blank’s rim and spoke

1	Z Shan, S Qin, Q Liu, et al.Key manufacturing technology & equipment for energy saving and emissions reduction in mechanical equipment industry. International Journal of Precision Engineering and Manufacturing, 2012, 13(7): 1095–1100 https://doi.org/10.1007/s12541-012-0143-y
2	Y Yan, S Li, R Zhang, et al.Rapid prototyping and manufacturing technology: Principle, representative technics, applications, and development trends. Tsinghua Science and Technology, 2009, 14(Suppl 1): 1–12 https://doi.org/10.1016/S1007-0214(09)70059-8
3	P M Hackney, R Wooldridge. Characterisation of direct 3D sand printing process for the production of sand cast mould tools. Rapid Prototyping Journal, 2017, 23(1): 7–15 https://doi.org/10.1108/RPJ-08-2014-0101
4	A Mostafaei, E L Stevens, J J Ference, et al.Binder jetting of a complex-shaped metal partial denture framework. Additive Manufacturing, 2018, 21: 63–68 https://doi.org/10.1016/j.addma.2018.02.014
5	G, Budzik T Markowski, B Kozik, et al.The application of Voxeljet technology to the rapid prototyping gear cast. Archives of Foundry Engineering, 2014, 14(1): 87–90
6	Z Shan, Z Guo, D Du, et al.Coating process of multi-material composite sand mould 3D printing. China Foundry, 2017, 14(6): 498–505 https://doi.org/10.1007/s41230-017-7078-y
7	E M Sachs, M J Cima, M A Caradonna, et al.Jetting layers of powder and the formation of fine powder beds thereby. US Patent, 6596224. 2003-07-22
8	E J R Parteli, T Pöschel. Particle-based simulation of powder application in additive manufacturing. Powder Technology, 2016, 288: 96–102 https://doi.org/10.1016/j.powtec.2015.10.035
9	C Hu, W Du. Research on the method for improving mechanical properties of sand mould based on 3D printing process. Materials Science and Engineering, 2018, 394: 1–6
10	L Xue, C Hu, X Li, et al.Research on the influence of furan resin addition on the performance and accuracy of 3D printing sand mould. Materials Science and Engineering, 2018, 392: 1–6 https://doi.org/10.1088/1757-899X/392/6/062044
11	W Yang, P Jia, Y Ma, et al.Modeling and simulation of binder droplet infiltration in 3D printing technology. Nanotechnology and Precision Engineering, 2017, 15(4): 246–253 (in Chinese)
12	J Thiel, S Ravi, N Bryant. Advancements in materials for three-dimensional printing of molds and cores. International Journal of Metalcasting, 2017, 11(1): 3–13 https://doi.org/10.1007/s40962-016-0082-y
13	X Ma, F Lin, L Zhang. The heterogeneous compensation for the infiltrative error of binder jetting additive manufacturing process. In: Proceedings of the 26th International Solid Freeform Fabrication Symposium. Austin: The University of Texas at Austin, 2015
14	D Brodkin, C Panzera, P Panzero. Dental restorations formed by solid freeform fabrication methods. US Patent, 6994549. 2006-02-07
15	K Nyembwe, M Mashila, P J M van Tonder, et al.Physical properties of sand parts produced using a Voxeljet VX1000 three-dimensional printer. South African Journal of Industrial Engineering, 2016, 27(3): 136–142 https://doi.org/10.7166/27-3-1661
16	S Mitra, A Rodríguez de Castro, M El Mansori. The effect of ageing process on three-point bending strength and permeability of 3D printed sand molds. International Journal of Advanced Manufacturing Technology, 2018, 97(1–4): 1241–1251 https://doi.org/10.1007/s00170-018-2024-8
17	N Hawaldar, J Zhang. A comparative study of fabrication of sand casting mold using additive manufacturing and conventional process. International Journal of Advanced Manufacturing Technology, 2018, 97(1–4): 1037–1045 https://doi.org/10.1007/s00170-018-2020-z
18	S R Sama, J Wang, G Manogharan. Non-conventional mold design for metal casting using 3D sand-printing. Journal of Manufacturing Processes, 2018, 34: 765–775 https://doi.org/10.1016/j.jmapro.2018.03.049
19	C Deng, J Kang, H Shangguan, et al.Effects of hollow structures in sand mold manufactured using 3D printing technology. Journal of Materials Processing Technology, 2018, 255: 516–523 https://doi.org/10.1016/j.jmatprotec.2017.12.031
20	H Shangguan, J Kang, C Deng, et al.3D-printed rib-enforced shell sand mold for aluminum castings. International Journal of Advanced Manufacturing Technology, 2018, 96(5–8): 2175–2182 https://doi.org/10.1007/s00170-018-1783-6
21	C Deng, J Kang, H Shangguan, et al.Insulation effect of air cavity in sand mold using 3D printing technology. China Foundry, 2018, 15(1): 37–43 https://doi.org/10.1007/s41230-018-7243-y

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