Abstract
A multi-material hybrid patternless moulding process for complicated castings has been proposed. Moulding sands used in the hybrid moulding process include silica sand, ceramic sand, chromite sand, zircon sand, and steel shot sand. Experimental method was used to study the effects of moulding sands on the temperature field, mechanical properties, and dimensional precision of the iron castings. Under the condition that the wall thickness on different sides of the casting is the same, when the wall thickness is greater than 10 mm, the heat storage capacity of the moulding sands from strong to weak is steel shot sand, zircon sand, chromite sand, ceramic foundry sand, and silica sand. Tensile strength of the obtained castings from high to low is zircon sand, chromite sand, steel shot sand, ceramic sand, and silica sand. Contraction rate of the obtained castings from high to low is steel shot sand, zircon sand, chromite sand, silica sand, and ceramic sand. Therefore, steel shot sand and zircon sand can be used as chilled sand, and even can be used instead of cold iron when the casting wall thickness is greater than 10 mm. Zircon sand and chromite sand can be used to obtain high mechanical properties, and silica sand and ceramic sand can be selected to obtain high dimensional precision of the castings. Finally, a typical iron casting piece was tested by experiment using the hybrid moulding process. Excellent performances of iron castings confirm the feasibility of the hybrid moulding process.
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References
Shan Zhongde, Liu Feng, Li Xinya, et al. Advanced Manufacture Technology Center China Academy of Machinery Science & Technology. An adaptive method for casting moulds. China Patent, ZL200910162301.3, 2013.01.09.
Shan Z, Yan Y, Zhang R, et al. Rapid Manufacture of Metal Tooling by Rapid Prototyping. International Journal of Advanced Manufacturing Technology, 2003, 21: 469–475.
Hae-Sung Yoon, Jang-Yeob Lee, Hyung-Soo Kim, et al. A comparison of energy consumption in bulk forming, subtractive, and additive processes: Review and case study. Int. J. Precision Engineering and Manufacturing, 2014, 1(3): 261–279.
Shan Zhongde, Qin Shaoyan, Liu Qian, et al. Key Manufacturing Technology & Equipment for Energy Saving and Emissions Reduction in Mechanical Equipment Industry. Int. J. Precision Engineering and Manufacturing, 2012, 13(7): 1095–1100.
Casting Manual, Volume 4: Moulding Material. Foundry Institution of Chinese Mechanical Engineering Society, Beijing: China Machine Press, 2002.
Liu Limin, Shan Zhongde, Lan dun, et al. Research of Cutting Properties of Mould Sand Based on the Precision Forming Technology Without Pattern. Foundry, 2016, 12: 1167–1171. (In Chinese)
Kubo K, Ppehlke R D. Thermal properties of moulding sands. AFS Transactions, 1985.
Cristina Sánchez López de Pablo, José Javier Serrano Olmedo, Alejandra Mina Rosales, et al. A method to obtain the thermal parameters and the photothermal transduction efficiency in an optical hyperthermia device based on laser irradiation of gold nanoparticles. Nanoscale Research Letters, 2014, 9(1): 441–446.
Zhang Lin, Du Bin, Lu Yanping. Study on the Method of Accurate Measurement of Specific Heat Using Laser Flash Apparatus. Vacuum Electronics, 2015, 2: 41–45.
Kang Jinwu, You Rui, Nie Gang. An indirect surface temperature measurement method in the casting process of large castings. China Patent, ZL201110388031 2011.11.29. (In Chinese)
Bazhenov V E, Koltygin A V, Fadeev A V. The use of the ProCast software to simulate the process of investment casting of alloy based on titanium aluminide TNM-B1 into ceramic moulds. Russian Journal of Non-Ferrous Metals, 2014, 551–555.
Xu Zunping, Qiang Hua. Finite element simulation of temperature field of ZL105 alloy sample in solidification process under different mould. Hot Working Technology, 2008, 17: 13–15. (In Chinese)
Hou Qifei, Yang Juan, Wang Liuli. The effect of graphite morphology and oxide inclusions on the mechanical properties of gray iron castings. China Foundry, 2010, 31(5): 302–304.
Chen Bingxi. Contraction rate of the complex structure casting in the solidification process. Doctoral dissertation: Shenyang University of Technology, 2014. (in Chinese)
Liu Jie, Bu Kun, Li Yong-yi, et al. Casting contraction analysis of turbine blade. Modern Manufacturing Engineering, 2008, 3: 9–12.
Jin Fangwei. Effect of graphite distribution morphology on performance of gray cast iron. Journal of Yunnan University, 2000, 15, 6: 139–141. (In Chinese)
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Li-min Liu Female, Ph.D. Her research interests mainly focus on advanced manufacturing technology and equipment.
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Liu, Lm., Shan, Zd., Liu, F. et al. High-quality manufacturing method of complicated castings based on multi-material hybrid moulding process. China Foundry 15, 343–350 (2018). https://doi.org/10.1007/s41230-018-8053-y
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DOI: https://doi.org/10.1007/s41230-018-8053-y
Key words
- hybrid patternless moulding process
- hybrid moulding process
- thermal physical parameters
- temperature field
- mechanical properties
- dimensional precision