Glass precision micro-cutting using spark assisted chemical engraving
| Autor: | Lucas A. Hof, Rolf Wüthrich |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0209 industrial biotechnology
Computer science Industrial engineering. Management engineering Micro-fabrication Polishing Mechanical engineering 02 engineering and technology T55.4-60.8 Engraving Industrial and Manufacturing Engineering 020901 industrial engineering & automation Machining Spark (mathematics) Calibration Surface roughness Spark assisted chemical engraving (SACE) Free-form micro-cutting Engineering (miscellaneous) Rapid prototyping Mechanical Engineering Process (computing) 021001 nanoscience & nanotechnology Mechanics of Materials visual_art visual_art.visual_art_medium Glass 0210 nano-technology Mass-personalization Voltage |
| Zdroj: | Advances in Industrial and Manufacturing Engineering, Vol 3, Iss, Pp 100056-(2021) |
| ISSN: | 2666-9129 |
| Popis: | Manufacturing industry faces new challenges with the emergence of the need for the production of small batches of personalized parts. Such production methods demand for a capability to integrate multiple machining operations in one manufacturing process to reduce setup and calibration time and tooling costs. This requirement is especially challenging for difficult-to-machine materials such as glass, since there exist only a limited number of glass machining technologies and further these technologies often require specialized tooling. Glass cutting is among the crucial machining operations, which is frequently required for glass products. The presented study discusses free-form micro-cutting by Spark Assisted Chemical Engraving (SACE), determining cut parameters, in terms of tool feed-rate F and depth-of-cut p in function of machining voltage. A simple model is discussed allowing to predict the maximal product F ⋅ p which can be used to cut glass by SACE. The presented data and model allow to reduce the time-consuming trial and error process in determining appropriate cutting parameters. An interesting finding is that lowest cutting times can be achieved with tools of 100-μm diameter. Cut surface roughness of initial cuts can be reduced by deploying subsequently incremental finishing (polishing) passes performed at lower machining voltage, lower tool feed rates and higher angular tool rotation. It is demonstrated that very smooth cut surfaces (Rz ~ 1 μm) can be achieved. |
| Databáze: | OpenAIRE |
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