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首页> 外文会议>Conference on MEMS/MOEMS Technologies and Applications >A model for the micro-fabrication with selective laser sintering metal powders
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A model for the micro-fabrication with selective laser sintering metal powders

机译：具有选择性激光烧结金属粉末微制造微制造的模型

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There are many micro-fabrication technologies. Some micro-components can be fabricated by selective laser sintering (SLS). When selective laser sintering metal powders is used to produce micro-components, there are numbers of factors which will influence final result, such as laser wavelength, laser power, diameter of laser beam, scanning speed, particle size and materials etc. These factors are not single but interfere with each other. The change of one factor will greatly affect the character of final micro-components (such as width of scanning track , dimension error, component hardness ,etc). In selective laser sintering metal powders, many experiments are needed in order to get the optimum process parameters. However, this will cost much time and money. Moreover in later process, new experiments will be needed in order to get the optimum process parameters due to the change of one factor. Many models about selective laser sintering metal powders have been investigated in the past. Nevertheless, these models are about the interaction of laser and metal powders, and the physical and thermal response to the initial condition. They are provided for the macro-fabrication. No model can be applied in the micro-domain, and no one aims at the influence of these factors on the character of the final micro-component. In this paper a numerical model about the relation of these factors and the character of final micro-components is provided to minimize the number of experiments. This model will include the major factors of SLS in micro-domain, and through such a model we can deduce the numerical value of optimum process parameters from final micro-component character instead of making a lot of process experiments. Therefore the cost of micro-fabrication with SLS techniques will be greatly reduced.
机译：有许多微制造技术。一些微型组件可以通过选择性激光烧结（SLS）制造。当使用选择性激光烧结金属粉末产生微量成分时，存在影响最终结果的因素，例如激光波长，激光功率，激光束直径，扫描速度，粒度和材料等。这些因素是不是单身，但互相干扰。一个因素的变化将极大地影响最终微量组件的特征（例如扫描轨道的宽度，尺寸误差，组件硬度等）。在选择性激光烧结金属粉末中，需要许多实验以获得最佳过程参数。但是，这将花费很多时间和金钱。此外，在后来的过程中，需要新的实验，以便由于一个因素的变化而获得最佳过程参数。过去已经研究了关于选择性激光烧结金属粉末的许多模型。然而，这些模型是关于激光器和金属粉末的相互作用，以及对初始条件的物理和热响应。它们是为宏观制造提供的。在微观域中没有模型，没有人目的是这些因素对最终微量组分的特征的影响。在本文中，提供了关于这些因素关系和最终微量组分的特征的数值模型，以最小化实验的数量。该模型将包括微域中的SLS的主要因素，并且通过这种型号，我们可以从最终的微组件字符中推断出最佳过程参数的数值，而不是制造大量的过程实验。因此，具有SLS技术的微制造成本将大大降低。

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