【摘要】 碳纤维复合材料由于其优良的力学性能在航空航天领域具有重要的应用。文中针对单向碳纤维复合材料C/SiC开展平面磨削试验研究,建立了粗糙度数学模型,揭示了复合材料加工表面粗糙度的影响机制。试验发现碳纤维复合材料C/SiC沿典型方向磨削时粗糙度符合该规律:轴向>法向>径向。此外,磨削过程中,表面粗糙度随进给速度、磨削深度的增加而增大,随着砂轮转速的增加,加工质量具有明显的改善。文中研究对提高复合材料加工精度具有显著的经济意义,并可为碳纤维复合材料体系的精密加工提供一定的理论和试验支撑。更多还原

【Abstract】 Carbon fiber composites have important applications in the aerospace industry due to their excellent mechanical properties. In this paper,the planar grinding experiment of unidirectional carbon fiber composite C/SiC is carried out,and the mathematical model of roughness is established,which reveals the influence mechanism of surface roughness of composite processing. It is found that the roughness of the carbon fiber composite C/SiC grinding in a typical direction conforms to the law:axial>normal>radial. In addition,during the grinding process,the surface roughness increases with the increase of the feed speed and the grinding depth. As the grinding wheel speed increases,the machining quality is significantly improved. The research of the thesis has significant economic significance for improving the processing precision of composite materials,and can provide theoretical and experimental support for the precision machining of carbon fiber composite systems.更多还原