A Method of Fabricating Evaporative Models by Selective Laser Melting
In this paper, we propose a new method of fabricating evaporative patterns for vacuum molding and precision casting. Powders of exothermic reactive materials and salt are mixed uniformly and thinly spread. An infrared laser beam scans over the layer of these material powders. Chemical reaction occur...
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| Published in | Rēzā kenkyū Vol. 29; no. 8; pp. 522 - 526 |
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| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
Suita
The Laser Society of Japan
2001
Laser Society of Japan |
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| Abstract | In this paper, we propose a new method of fabricating evaporative patterns for vacuum molding and precision casting. Powders of exothermic reactive materials and salt are mixed uniformly and thinly spread. An infrared laser beam scans over the layer of these material powders. Chemical reaction occurs in the irradiated area, and the salt powders are melted by chemical reaction heat and laser energy. After the irradiation, the materials solidify and connect to the lower solidified layer. By repeating the powder spreading and the laser scanning, a 3-D model is fabricated. Since the main component of the model is salt, the model is easily removed from the mold by washing with water. In order to prove this theory, simple layered models were made andtheir shapes were transferred to silicone rubber and plaster. Copies of the master models were made by vacuum molding and plaster molding. |
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| AbstractList | In this paper, we propose a new method of fabricating evaporative patterns for vacuum molding and precision casting. Powders of exothermic reactive materials and salt are mixed uniformly and thinly spread. An infrared laser beam scans over the layer of these material powders. Chemical reaction occurs in the irradiated area, and the salt powders are melted by chemical reaction heat and laser energy. After the irradiation, the materials solidify and connect to the lower solidified layer. By repeating the powder spreading and the laser scanning, a 3-D model is fabricated. Since the main component of the model is salt, the model is easily removed from the mold by washing with water. In order to prove this theory, simple layered models were made andtheir shapes were transferred to silicone rubber and plaster. Copies of the master models were made by vacuum molding and plaster molding. |
| Author | YAMADA, Osamu MARUTANI, Yoji KAMITANI, Takayuki |
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| References | 6) 丸谷洋二: レーザー研究 24 (1996) 467. 7) 門格史, 原信彦, 吉村一彦, 中下和俊: 第16回ラピッドプロトタイピングシンポジウム講演論文集 (1999) p.125. 1) (社) 高分子学会編: プラスチック加工技術ハンドブック (日刊工業新聞社, 1995). 9) 清水竜朗, 渡辺徹哉, 後藤基浩, 小永幹夫, 鈴木朝夫: 第19回ラピッドプロトタイピングシンポジウム講演論文集 (2000) P. 71. 8) 村松磐, 簑輪幸三, 笹川俊夫, 増田伸二, 孟陽: 第16回ラピッドプロトタイピングシンポジウム講演論文集 (1999) p.101. 14) F. Abe and K. Osakada: International Journal of the Japan Society for Precision Engineering 30 (1996) 278. 13) W. König, T. Celiker, and H. J. Herfurth: Proceedings of the 2nd European Conference on Rapid Prototyping and Manufacturing, Nottingham, 1993 (The University of Nottingham, 1993) p.303. 11) S. Das, N. Harlan, J. J. Beaman, and D. L. Bourell: Solid Freeform Fabrication Proceedings, Austin, 1996 (The University of Texas at Austin, 1996) p.89. 15) 中川威雄, 丸谷洋二編著: 積層造形システム (工業調査会, 1996). 3) (社) 日本機械学会: 機械工学便覧応用編B2加工学・加工機器 (丸善, 1984). 16) 福見俊夫, 安井至, 植月正雄編: 光学材料ハンドブック ((株) リアライズ社, 1992). 17) 山田修: 科学と工業 65 (1991) 460. 4) 中井孝, 丸谷洋二: レーザー研究 16 (1988) 14. 2) 中川威雄: 型技術 12 (1997) 18. 5) 丸谷洋二, 中井孝: レーザー研究 17 (1989) 410. 10) W. Zhang, M. C. Leu, Z. Ji, and Y. Yan: Solid Freeform FabricationProceedings, Austin, 1998 (The University of Texas at Austin, 1998) p.185. 12) 前川克廣, 小川慧, 大島郁也, 横山雄一: 精密工学会誌 64 (1998) 1340. |
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| Snippet | In this paper, we propose a new method of fabricating evaporative patterns for vacuum molding and precision casting. Powders of exothermic reactive materials... |
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| SubjectTerms | Evaporative pattern Precision casting Rapid prototyping Selective laser melting Vacuum molding |
| Title | A Method of Fabricating Evaporative Models by Selective Laser Melting |
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