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Study on the Joining of 2D Microstructure during the Fabrication of 3D Micro-Mold
Bin Xu,Xiao-yu Wu,Jian-guo Lei,Feng Luo,Chen-lin Du,Shuang-chen Ruan,Zhen-long Wang 한국정밀공학회 2014 International Journal of Precision Engineering and Vol. No.
The 3D micro-mold which is fabricated by the femtosecond laser cutting and micro electric resistance slip welding is formed throughthe lamination of multilayer 2D microstructures. By using this technology, the 3D micro-mold with a high depth-width ratio can bemanufactured. In order to improve the laminated precision and joining strength of each layer of 2D microstructure, this researchapplied layer-by-layer micro electric resistance slip welding to weld each layer of 2D microstructure. Firstly, the proper technicalparameters were obtained through the experiments of layer-by-layer micro electric resistance slip welding. Secondly, through thelayer-by-layer micro electric resistance slip welding, multilayer 2D microstructures were weld together and a 3D micro-mold wasformed. Moreover, the anti-shear stress test of 3D micro-mold was done. In the layer-by-layer slip welding process, electrode couldproduce some losses and the losses could deposit on the surface of micro-mold. This research also studied the deposition effect ofthe electrode. Finally, based on the above studies, the micro square-hole array and the micro-gear cavity were fabricated by joiningmultilayer 2D microstructure.
노즐 유로 설계 최적화 및 정밀 금형 가공 기술을 통한 미세입자 분사기술 연구
김상형(Sanghyung Kim),유우식(Woosik Yoo) (사)한국CDE학회 2018 한국CDE학회 논문집 Vol.23 No.4
Recently, the spray type cosmetics and household goods market has grown rapidly due to the spray dispenser products and the development of precision mold technology. Spray products are becoming more widespread, market demands for various types of spray dispensers are expanding, and a variety of design and functional dispensers are being developed to apply the application. In this paper, we propose a method to verify mold design of spray nozzle structure and data. Also we studied how to reduce the verification cost and time, and studied limitations of current 3D printing technology what needs to be improved in the future. In addition, we describe the method of manufacturing spray nozzle (Orifice) by the optimized mold design and machining through the precision mold manufacturing process, and it is possible to spray micro particles changing the internal structure of the orifice of spray pattern.