Abstract:Carbon fiber reinforced polymer (CFRP) is a typical difficult–to–machining material. There are still some problems in its milling process, such as the poor surface quality and difficulty in fully characterizing the surface topography. In this article, slot–milling tests were carried out with different feed speeds, and the surface topography and machining mechanism of CFRP milling was studied. It was found that there was a big deficiency using two–dimensional surface roughness parameters, three–dimensional surface roughness can more comprehensively reflect the surface topography of CFRP milling. The surface topography of CFRP was jointly characterized by arithmetic mean height Sa, root mean square height Sq, skewness Ssk and kurtosis Sku. With the increase of the feed speed, Sa and Sq increase gradually, but Ssk and Sku decrease. In order to guarantee the machined surface quality, the down milling method is used, and the feed speed should be less than 1200mm/min.
范文涛,陈燕,陈逸佳,谢松峰,季珺杰,纪道航. CFRP 铣削加工三维形貌研究[J]. 航空制造技术, 2021, 64(9): 62-67.
FAN Wentao, CHEN Yan, CHEN Yijia, XIE Songfeng, JI Junjie, JI Daohang. Research on 3D Surface Topography in Milling of CFRP. Aeronautical Manufacturing Technology, 2021, 64(9): 62-67.