Kevlar复合材料钻孔切削力及制孔质量研究

复合材料科学与工程 ›› 2020, Vol. 0 ›› Issue (11): 42-48.

Kevlar复合材料钻孔切削力及制孔质量研究

巩文东^1,2, 林毓梁¹, 李颖¹

1.山东职业学院,济南250104;
2.天津工业大学机械工程学院,天津300387

收稿日期:2019-05-30 出版日期:2020-11-28 发布日期:2020-11-28
作者简介:巩文东(1985-),男,博士研究生,讲师,研究方向为复合材料成型技术与装备,alliya0625@163.com。
基金资助:
山东省高校科研计划项目(J18KB030)

RESEARCH ON CUTTING FORCE AND HOLE QUALITY DURING THE DRILLING OF KFRP COMPOSITES

GONG Wen-dong^1,2, LIN Yu-liang¹, LI Ying¹

1. Shandong Polytechnics, Jinan 250104, China;
2. Tianjin Polytechnic University, Tianjin 300387, China

Received:2019-05-30 Online:2020-11-28 Published:2020-11-28

摘要/Abstract

摘要： 针对Kevlar复合材料强韧性、难加工等特点,首先探索不同垫板对麻花钻钻孔质量的影响机理,然后在此基础上进行加工参数单因素实验。实时采集钻削过程中的切削力数据,分析切削力的变化规律;测量最大撕裂和毛刺长度,分析撕裂、毛刺的变化规律;观测并统计孔壁烧蚀碳化现象。实验结果表明:垫板可改善制孔质量,铝合金垫板效果最佳。在铝合金垫板下,切削力随着主轴转速的增大而减小,随着进给速度的增大而增大,进给速度对切削力的影响更为显著。减小轴向切削力可以抑制撕裂和毛刺现象。在较低的进给速度下,过高的主轴转速将会导致孔壁烧蚀碳化。

关键词: Kevlar复合材料, 钻削, 切削力, 撕裂, 毛刺, 孔壁烧蚀

Abstract: KFRP composites have strong toughness which are therefore difficult to be processed. Different kinds of plates are used to investigate the efforts for the hole quality, and then single factor experiments are conducted to investigate the cutting force and hole quality in different working conditions. The cutting force, the tearing area and the fuzzing area are presented to analysis the cutting process and characterize the hole quality. The experimental results indicated that the plates can improve the hole quality, and the aluminum plates have the best efforts. There are close influences of feed speed and spindle speed on the cutting force and hole quality. The cutting force decreases with the spindle speed, and increases with the feed speed. The feed speed has a greater impact. Decreasing the axial cutting force can reduce the tearing and fuzzing area. The inside walls of the hole will be burned under low feed speed and high spindle speed working conditions.

Key words: KFRP composites, drill, force, tear, fuzz, burned wall

中图分类号:

TB332

巩文东, 林毓梁, 李颖. Kevlar复合材料钻孔切削力及制孔质量研究[J]. 复合材料科学与工程, 2020, 0(11): 42-48.

GONG Wen-dong, LIN Yu-liang, LI Ying. RESEARCH ON CUTTING FORCE AND HOLE QUALITY DURING THE DRILLING OF KFRP COMPOSITES[J]. Composites Science and Engineering, 2020, 0(11): 42-48.

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