Optimization on Fiber Laser Sintering of Copper-Sn Powders
| Autor: | Kuang-Chih Lee, 李光智 |
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| Rok vydání: | 2015 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 103 As science and technology being progressive constantly, various customers’demands for productsare getting higher.The time to the market, cost, innovation, diversification of the products are emphasized in order to raise the competitiveness of market.The technology of rapid prototyping grows up very prosperous. It hugely reduces the developing time of new products. However, metal materials are seldom used so far.This has limited the application of the rapid prototyping. The metal powders that theexperiments use in this researchare tin powder of 74 μm and copper powder of 74 μm.The fiber laser is used to sinter the mixed metal powders. The results of sintering areobservedby the optical microscope and then calculate the porosity of sintered specimen.Finally,Response Surface Method isapplied to investigate and analyze the effect of laser power,sintering speed,and frequency on the porosity.Together with Design of Experiment, optimal parameter setting is obtained for the better quality of metal rapid prototyping. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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