Cf/SiC复合材料微小孔的钻削加工特性

doi:10.3969/j.issn.1004-132X.2025.07.023

摘要/Abstract

摘要： 采用金刚石钻头在垂直和平行于Cf/SiC复合材料编织面方向上加工了直径0.5 mm的孔，探讨了钻削方式和工艺参数对钻削力、孔质量和刀具磨损的影响，研究了材料的去除机理和刀具的磨损机理。研究结果表明，与平行钻削相比，垂直钻削的轴向力大30%、孔口损伤因子小8%、圆度误差大20%且刀具磨损速率小。分层缺陷导致平行钻削的孔壁表面粗糙度小于垂直钻削。纤维方向角对材料去除机理有较大影响，纤维方向角为0°～90°时，碳纤维发生剪切断裂，表面质量较好；纤维方向角为90°～180°时，碳纤维发生弯曲断裂，表面质量较差。

关键词: Cf/SiC复合材料, 钻削, 孔质量, 纤维方向角, 材料去除机理

Abstract: Diamond drills were used to drill holes of 0.5 mm diameter on Cf/SiC composite materials in vertical direction and parallel direction to the fiber weaving. The effects of drilling method and processing parameters on drilling forces, hole quality and tool wear were investigated. Material removal mechanism and tool wear mechanism were studied. The results show that vertical drilling has 30% greater thrust forces, 8% less hole damage factor, 20% greater roundness errors, and less tool wear rate than those of parallel drilling. Delamination defects result in smaller surface roughness of hole walls for parallel drilling than those of vertical drilling. The FOA has a significant impact on the material removal mechanism: when FOA is as 0° to 90°, the carbon fibers undergo shear fracture resulting in better surface quality; when FOA is as 90° to 180°, the carbon fibers undergo bending fracture leading to poorer surface quality.

Key words: Cf/SiC composite, drilling, hole quality, fiber orientation angle(FOA), material removal mechanism

中图分类号:

TB332

杨昊天1, 何文博1, 2, 3, 赵国龙1, 年智文1, 杨吟飞1, 2, 3, 李亮1. Cf/SiC复合材料微小孔的钻削加工特性[J]. 中国机械工程, 2025, 36(07): 1600-1610.

YANG Haotian1, HE Wenbo1, 2, 3, ZHAO Guolong1, NIAN Zhiwen1, YANG Yinfei1, 2, 3, LI Liang1. Drilling Characteristics of Micro Holes on Cf/SiC Composites[J]. China Mechanical Engineering, 2025, 36(07): 1600-1610.

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链接本文: https://www.cmemo.org.cn/CN/10.3969/j.issn.1004-132X.2025.07.023

https://www.cmemo.org.cn/CN/Y2025/V36/I07/1600

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