面曝光快速成形系统中涂层技术的研究  

Research of recoating system in mask exposal stereo lithography system

作　　者：王亚宁[1] 胥光申[1] 巨孔亮 金矿矿 罗声[1] 

机构地区：[1]西安工程大学机电工程学院,陕西西安710048

出　　处：《制造技术与机床》2015年第1期153-156,161,共5页Manufacturing Technology & Machine Tool

基　　金：国家自然科学基金:基于Lco3的面曝光微小零件快速成形关键技术研究(50875194);陕西省教育厅产业代培育项目:用于小尺寸零件制作的低成本整层曝光快速成形系统开发(2011JG17)

摘　　要：针对面曝光快速成形系统对涂层工艺的要求,设计了一种浸入式涂层系统。该系统由步进电动机、丝杠、刮刀、导轨等组成。为了研究涂层参数对涂层性能的影响,建立了涂层厚度模型,通过试验比较同一涂层参数取不同值时涂层厚度的变化规律。试验结果表明:涂层厚度随刮刀间隙及刮削次数的增大而增大;涂层厚度随刮削速度的增大而减小。为了观察涂层厚度是否随制件高度的增加而变化,制作了高40 mm的台阶制件并测量其涂层厚度。测量结果表明:在所设计的浸入式涂层系统中,涂层厚度不随制件高度的增加呈现明显的变化趋势。A recoating system is proposed, which consists of stepmotor, screw, scraper blade and guide and so on in the paper. To determine the relationship between recoating parameters and recoating thickness, the model of recoating thickness is established and the recoating thickness produced when the recoating parameter take different value is compared by experiments. The results show that the recoating thickness increases with scraping times and the gap between the substrate and the blade; the recoating thickness decreases with scraping velocity increases. To observe whether the recoating thickness is changed with the height of the part. A part which had a height of 40 mm is fabricated and its recoating thickness is measured. The results show that recoating thickness does not change obviously when the height of part increases.

关 键 词：面曝光 快速成形 涂层厚度 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]