Rodriguez A, de Lacalle L N López, Pereira O, Fernandez A, Ayesta I
Aeronautics Advanced Manufacturing Center (CFAA), University of the Basque Country (UPV/EHU), Parque Tecnológico de Zamudio 202, 48170 Bilbao, Spain.
Int J Adv Manuf Technol. 2020;110(3-4):753-761. doi: 10.1007/s00170-020-05894-7. Epub 2020 Aug 16.
Roller burnishing technique to achieve isotropic surface topography on cylindrical components made of austempered ductile iron (ADI) casting is presented in this paper. In the last years, ADI casting components are used in many mechanical applications, due to their enhanced mechanical properties. ADI castings are difficult-to-cut materials; therefore, advanced techniques to improve manufacturing productivity are necessary and under research. On the other hand, spiral roughness pattern produced by turning operation is a common source of unconformities in several applications. Turning produces a defined kinematic pattern, similar to a thread. This work presents a theoretical and experimental validation using different burnishing conditions. Roughness and surface topography and surface integrity were checked. Results show that the technique greatly improves surface roughness, and eliminates the kinematic-driven roughness pattern of turning, leading to a more isotropic finishing. A comparison between roller burnishing and ball burnishing is also presented in this paper.
本文介绍了采用滚压光整技术在等温淬火球墨铸铁（ADI）铸造的圆柱零件上获得各向同性表面形貌的方法。近年来，由于ADI铸造零件具有增强的机械性能，它们在许多机械应用中得到了使用。ADI铸件是难切削材料；因此，提高制造生产率的先进技术是必要的且正在研究中。另一方面，车削加工产生的螺旋粗糙度图案是一些应用中不一致性的常见来源。车削会产生一种类似于螺纹的确定运动模式。这项工作使用不同的光整条件进行了理论和实验验证。检查了粗糙度、表面形貌和表面完整性。结果表明，该技术大大改善了表面粗糙度，并消除了车削运动驱动的粗糙度图案，从而获得更各向同性的精加工效果。本文还对滚压光整和滚珠光整进行了比较。
