Deja Mariusz, Zieliński Dawid
Department of Manufacturing and Production Engineering, Institute of Machine and Materials Technology, Faculty of Mechanical Engineering and Ship Technology, Gdańsk University of Technology, G. Narutowicza Str. 11/12, 80-233 Gdańsk, Poland.
Materials (Basel). 2021 Sep 14;14(18):5306. doi: 10.3390/ma14185306.
The growing use of contemporary materials in various industrial sectors, such as aerospace, automotive, as well as the oil and gas industry, requires appropriate machining methods and tools. Currently, apart from the necessity to obtain high-dimensional and shape accuracy, the efficiency and economic aspects of the selected manufacturing process are equally important, especially when difficult-to-cut materials, such as hard and brittle ceramics, have to be machined. In the research presented in this paper, a prototype tool fabricated from polyamide powder by the SLS method was used in flat-lapping of AlO ceramics, showing the promising potential and efficacy of rapid tooling and manufacturing in the area of abrasive machining. The influence of the selected input process factors, such as machining time, the type of abrasive suspension, kinematic parameters, and unit pressure, on technological effects, was analyzed. The microscopic observations of the active surface of the prototype tool showed its reinforcement with loose diamond abrasive particles (size D107), resulting in the effective material removal and improved surface finish of AlO ceramic samples. The directions for further development of tools fabricated by the SLS method for applications in abrasive machining were also envisaged by the authors.
当代材料在航空航天、汽车以及石油和天然气等各个工业领域的使用日益增加，这就需要合适的加工方法和工具。目前，除了需要获得高精度的尺寸和形状外，所选制造工艺的效率和经济性同样重要，尤其是在加工诸如硬脆陶瓷等难切削材料时。在本文所介绍的研究中，通过选择性激光烧结（SLS）方法由聚酰胺粉末制成的原型工具被用于AlO陶瓷的平面研磨，显示出快速模具制造和制造在研磨加工领域具有广阔的潜力和功效。分析了所选输入工艺因素，如加工时间、磨料悬浮液类型、运动学参数和单位压力对工艺效果的影响。对原型工具活性表面的微观观察表明，其表面有松散的金刚石磨粒（尺寸为D107）增强，从而实现了AlO陶瓷样品的有效材料去除和表面光洁度的提高。作者还设想了通过SLS方法制造的工具在研磨加工应用中的进一步发展方向。
