標題: Experimental study of demolding properties on stereolithography tooling
作者: An, Chao-Chyun
Chen, Ren-Haw
機械工程學系
Department of Mechanical Engineering
關鍵字: demolding properties;rapid tooling;failure mechanism
公開日期: 1-Aug-2007
摘要: Direct tooling using stereolithography (SL) photopolymer has been developed as rapid tooling for short-run injection molds. However, the tool strength, thermal conductivity, and erosion resistance of SL mold are lower than that of the conventional metal mold. Previous study has showed that the tool life was limited under 200 shots and tool damage often occurs during part ejection. In this paper, experimental data from a demolding properties test are presented and discussed. The experiments were performed using various cooling time, hold pressure, and mold temperature. The experimental data were analyzed by measuring demolding force and surface roughness to evaluate tool life and failure mechanism in order to obtain a working range for the process parameters. The test result shows that the demolding force has close relation with cooling time and mold temperature.
URI: http://dx.doi.org/10.1115/1.2716752
http://hdl.handle.net/11536/10532
ISSN: 1087-1357
DOI: 10.1115/1.2716752
期刊: JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME
Volume: 129
Issue: 4
起始頁: 843
結束頁: 847
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