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首页> 外文期刊>The International Journal of Advanced Manufacturing Technology >Consecutive sub-sector scan mode with adjustable scan lengths for selective laser melting technology
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Consecutive sub-sector scan mode with adjustable scan lengths for selective laser melting technology

机译：连续的子扇区扫描模式，扫描长度可调，用于选择性激光熔化技术

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摘要

In an effort to optimize the manufacture of near fully dense metal parts, we have developed a sub-sector scan mode for selective laser melting (SLM) technology. The working process of such a scan mode is realized by the way that the contour polygons of a three-dimensional (3D) metal part obtained by slicing layer by layer are enclosed in a small quadrangle box, specifically an encasing box, and sub-boxes (sub-sectors) in square are then divided by the enclosed quadrangle box with short scan lengths on each side. Then these sub-sectors are hatched with bidirectional scanning lines which are normal with right-angles in adjacent sectors. The algorithm is presented in this paper. In the SLM processes, this scan pattern helps to increase the temperature in small sub-sectors and melt metal powder more effectively. Parts with complex structures from stainless steel 316 L were manufactured with this new scan mode.
机译：为了优化几乎完全致密的金属零件的制造，我们为选择性激光熔化（SLM）技术开发了子扇区扫描模式。这种扫描模式的工作过程是通过以下方式实现的：将通过逐层切片获得的三维（3D）金属零件的轮廓多边形封装在一个小的四边形盒子（具体是包装盒）和子盒子中然后将正方形的（子扇区）除以封闭的四边形框，每边的扫描长度都很短。然后，在这些子扇区上填充双向扫描线，该扫描线垂直于相邻扇区中的直角。本文提出了该算法。在SLM工艺中，此扫描模式有助于提高小分区的温度并更有效地熔化金属粉末。采用这种新的扫描模式可以制造出具有316 L不锈钢结构的复杂零件。

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