光固化快速成形制造时间的影响因素分析

光固化成形是一种基于逐层累加方式发展起来的新的制作工艺，零件的制作时间是成形中需要考虑的关键问题之一。光固化成形零件的制作时间主要是由两部分组成的，一是树脂的扫描固化时间；二是为保证正常加工而增加的辅助时间，辅助时间的减少有助于降低零件制作时间。制作方向的选择也是重要影响因素，通过选择合适的制作方向，可以大幅度减少制作时间；扫描成形参数对成形效率也有很大的影响，较大的扫描间距可以减少光束扫描的往复距离，达到减少制作时间的目的。

Analysis on the Influence Factors of the stereolithography Fabrication Time

Stereolithography is a novel fabrication process based on and developed by layer manufacturing,and the fabrication time of the prototyping parts is one of the key issues during manufacturing.The time mainly comprises of two parts,one is the scanning time to cure liquid resin,and the other is the auxiliary time to assure normal fabrication process whose decrease helps to the shortening fabrication time.The choice of the fabrication direction is another main influence factor,and suitable direction can cut down the time greatly.The scanning parameters affects the fabrication efficiency and large hatch space is going to shorten the reciprocating distance during the scanning,attaining the aim to reduce the prototyping time.