Transactions of Materials and Heat Treatment

Title：Numerical simulation and experiment study of multi-point thermoforming for resin sheet

Authors： Li Zhongquan Peng Heli Yang Xudong Li Mingzhe

Unit： Shanghai Spaceflight Precision Machinery Institute Jilin University

KeyWords： resin sheet multi-point thermoforming numerical simulation spherical part saddle part

ClassificationCode：TG320

year,vol(issue):pagenumber：2017,42(11):104-108

Abstract：

The principle of multi-point thermoforming（MPTF）for resin sheet was introduced, and the glass transition temperatures of PMMA and PC sheets were tested for the PMMA and PC with a good comprehensive performance. Then, the finite element model of MPTF for resin sheet was built, and the numerical simulation results of spherical and saddle parts with MPTF were got. The results show that 3D surface of PMMA and PC sheets with good forming quality can be got by MPTF. Furthermore, the multi-point thermoforming experiments of spherical part with PMMA sheet and saddle part with PC sheet were carried out, and the results show that the formed parts are of good outline and uniform thickness, which verifies the feasibility and practicability of MPTF for resin sheet. Comparing the experimental results with numerical results of resin sheets with MPTF, the experimental results coincide with numerical results within a reasonable range of deviation and measurement error, which verifies the correctness of numerical simulation for resin sheet with MPTF.

Funds：

国家自然科学青年基金资助项目 (51505278)

作者简介：李中权（1964-），男，学士，博士生导师 E-mail：lizhongquan401@163.com 通讯作者：彭赫力（1986-），男，博士，高级工程师 E-mail：phl12616040811@126.com

Reference：

[1]申长雨, 陈静波, 刘春太, 等. 塑料成型加工概述[J]. 工程塑料应用, 1999, (3)：272-275.

Shen C Y, Chen J B, Liu C T, et al. Introduction to plastics molding and process[J]. Engineering Plastics Application, 1999,(3)：272-275.

[2]Franzen V, Kwiatkowski L, Martins P A F, et al. Single point incremental forming of PVC[J]. Journal of Materials Processing Technology, 2009, 209(1): 462-469.

[3]Silva M B, Alves L M, Martins P A F. Single point incremental forming of PVC: Experimental findings and theoretical interpretation[J]. European Journal of Mechanics-A/Solids, 2010, 29(4): 557-566.

[4]Walczyk D F, Hosford J F, Papazian J M. Using reconfigurable tooling and surface heating for incremental forming of composite aircraft parts[J]. Journal of Manufacturing Science and Engineering, 2003, 125(2): 333-343.

[5]Simon D, Kern L, Wagner J, et al. A reconfigurable tooling system for producing plastic shields[J]. Procedia CIRP, 2014, 17: 853-858.

[6]Su S Z, Li M Z, Liu C G, et al. Flexible tooling system using reconfigurable multi-point thermoforming technology for manufacturing freeform panels[J]. Key Engineering Materials, 2012, 504: 839-844.

[7]Peng H L, Li M Z, Liu C G, et al. Study of multi-point forming for polycarbonate sheet[J]. The International Journal of Advanced Manufacturing Technology, 2013, 67(9-12): 2811-2817.

[8]李明哲, 中村敬一．基本的な成形原理の检讨(第一报：板材多点成形法の研究)[A]．平成4年度日本塑性加工春季講演会论文集[C]. 横浜, 1992.

Li M Z, Nakamura K. Study of the basic principles (1st report: Research on multi-point forming for sheet metal) [A].Proceedings of the Japanese Spring Conference for Technology of Plasticity[C].Yokohama, 1992.

[9]Li M Z, Cai Z Y, Sui Z,et al. Multi-point forming technology for sheet metal[J]. Journal of Materials Processing Technology,2002,129(1-3): 333-358.

[10]刘春太, 王丽霞, 郑占民,等. 吹塑和热成型过程的数值分析Ⅱ：有限元方法[J]. 中国塑料, 2001, 15(10): 87-90.

Liu C T, Wang L X, Zheng Z M, et al. Numerical analysis of blow molding and thermoforming part II: Finite element method[J]. China Plastics, 2001, 15(10): 87-90.

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