Study on Mechanical Properties of Lost Foam Pattern in Machining

Abstract:

Lost foam casting has special requirements on the process performance of molding machinery, and the processing technology of Lost foam casting pattern is one of the core and key technologies of Lost foam casting. The research status of lost foam pattern and the safety problems existing in the process of lost foam casting were analyzed. The mechanical properties of lost foam pattern and its mechanical property model were studied, which provided theoretical support for the research of numerical control processing and safe casting of lost foam pattern. The development of Lost foam casting pattern NC processing technology is conducive to the use of information technology, digital technology to enhance the technological progress of traditional industries, promote the clean production of Lost foam casting, realize energy saving and emission reduction, and promote the rapid development of mechanical equipment manufacturing industry.

• Periodical: Key Engineering Materials (Volume 904)
• Pages: 148-153
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.904.148
• Online since: November 2021
• Authors: Hong Qi Luo, Xia Liu*, Po Wang
• Keywords: Lost Foam Casting, Machining, Mechanical Properties, Pattern

References

[1] Du Cheng, Yang Jun. Characteristics and application analysis of polystyrene foam (EPS) [J]. Journal of Southeast University (NATURAL SCIENCE EDITION), 2001, (03).

[2] Lv Zhuqing, Wang Huachang, Li Zhigang. Research on numerical control tool path optimization algorithm for foam pattern of lost foam based on UG. Forging technology, 2010, vol35 (6):137-141.

[3] John R. Wright. Lost Foam Comes of Age. Foundry Management & Technology, 2001(7)：26-29.

[4] Wen Shibao, Luo direction, Zhao Wenting.EPO foam plastic and its application [J]. plastic packaging, 2010, 20 (3):31-33.

[5] Star, Zhao Yan, Lujie, et al. Comparative analysis of cushioning packaging materials based on static compression test [j]. Packaging engineering, 2006, 27 (2):59-61.

[6] Lu Binglin. Study on static compression buffer curve of foamed polyethylene buffer materials [j]. Packaging engineering, 2007, 28 (2):42-44.

[7] Gb/t 8168-2008, static compression experiment of buffer materials for packaging [s].

[8] Xiong Zhiyuan, Zhang Junyan, Mao. Effects of density and strain rate on the mechanical behavior of polystyrene foam (EPS) under quasi-static compression [J]. Journal of materials science and engineering, 2007, 25 (4):606-608.

[9] Zhang W B. Application of expanded polystyrene in engineering[J]. Engineering Plastics Application, 2004, 32(7): 39-42.

[10] Liu XJ; Bhavnani SH; Overfelt RA Simulation of EPS foam decomposition in the lost foam casting process 2007(1-3).

DOI: 10.1016/j.jmatprotec.2006.08.023

[11] Mao Kuai, Zhang Junyan. Dependence of stress and density on EPS compression creep. Polymer materials science and engineering, 2009, 25 (5): 53-55.