López de Lacalle L N, Fernández Valdivielso A, Amigo F J, Sastoque L
Department of Mechanical Engineering, Aeronautics Advanced Manufacturing Center (CFAA), Faculty of Engineering of Bilbao, Alameda de Urquijo s/n, 48013 Bilbao, Spain.
Int J Adv Manuf Technol. 2020;110(3-4):899-907. doi: 10.1007/s00170-020-05942-2. Epub 2020 Aug 17.
In the work here presented, the high performance of ceramic insert tools in milling of ADI 1000 iron casting is analyzed. Austempered ductile irons (ADI) are ductile iron castings with strength and mechanical properties enhanced after specific heat treatment, achieving 1000 MPa or even more. Sintered carbide tools are state of the art in many industrial applications, including iron casting machining, but ceramic inserts are a feasible and promising option since cutting speed can be improved by 5 or even 10 times. A complete testing campaign was performed, starting with coated sintered carbides and aiming at the use of whisker reinforced AlO ceramics and SiN tools. The two most important conclusions are as follows: firstly, that the milling type so-called up-milling (or conventional) is more recommended than down-milling, also known as climb milling, and secondly, that dry machining enhances ceramics performance in comparison with using emulsion coolants (oil in water). Finally, results regarding economic aspects were analyzed based on the tools cost-performance ratio.
在本文所展示的工作中，分析了陶瓷刀片刀具在铣削1000牌号奥贝球铁铸件时的高性能。奥贝球铁（ADI）是一种球铁铸件，经过特定热处理后强度和机械性能得到增强，可达1000兆帕甚至更高。硬质合金刀具在包括铸铁加工在内的许多工业应用中是目前的先进技术，但陶瓷刀片是一种可行且有前景的选择，因为切削速度可提高5倍甚至10倍。开展了完整的测试活动，从涂层硬质合金刀具开始，目标是使用晶须增强AlO陶瓷刀具和SiN刀具。两个最重要的结论如下：第一，所谓的逆铣（或常规铣削）比顺铣（也称为爬铣）更值得推荐；第二，与使用乳化冷却液（水基切削液）相比，干式加工可提高陶瓷刀具的性能。最后，基于刀具性价比分析了经济方面的结果。
