Influence of Glassy Carbon Surface Finishing on Its Wear Behavior during Precision Glass Moulding of Fused Silica
Influence of Glassy Carbon Surface Finishing on Its Wear Behavior during Precision Glass Moulding of Fused Silica
复制标题
DOI：
10.3390/ma12050692
复制
发表时间：
2019-03-01
期刊：
影响因子：
3.4
通讯作者：
Bergs, Thomas
中科院分区：
文献类型：
--
作者：
Grunwald, Tim;Wilhelm, Dennis Patrick;Bergs, Thomas
激光技术对高精度熔融二氧化硅元件的需求日益增长。精密玻璃成型(PGM)是一种在效率和可扩展性方面都能满足特定要求的技术。由于高达1400摄氏度的加工温度和较高的机械负荷，玻璃炭被认为是适合熔融石英成型的成型工具材料。以往的研究表明，刀具的表面光洁度对磨损行为有重要影响。本文对玻璃炭模具的表面处理工艺进行了研究和分析。为了满足高精度光学的标准，光学行业中使用的精密表面描述参数将是精加工结果的特征。随后，在扩展成型实验中测试模具的耐磨性性能。分析了玻璃碳刀具的表面光洁度与其使用寿命之间的关系，得出了最佳表面处理的结论。
Laser technology has a rising demand for high precision Fused Silica components. Precision Glass Moulding (PGM) is a technology that can fulfil the given demands in efficiency and scalability. Due to the elevated process temperatures of almost 1400 degrees C and the high mechanical load, Glassy Carbon was qualified as an appropriate forming tool material for the moulding of Fused Silica. Former studies revealed that the tools' surface finishing has an important influence on wear behaviour. This paper deals with investigation and analysis of surface preparation processes of Glassy Carbon moulds. In order to fulfil standards for high precision optics, the finishing results will be characterised by sophisticated surface description parameters used in the optics industry. Later on, the mould performance, in terms of wear resistance, is tested in extended moulding experiments. Correlations between the surface finish of the Glassy Carbon tools and their service lifetime are traced back to fundamental physical circumstances and conclusions for an optimal surface treatment are drawn.