表面技术2025，Vol.54Issue(10)：185-198,14.DOI:10.16490/j.cnki.issn.1001-3660.2025.10.015
芳纶纤维增强复合材料螺旋铣削表面缺陷区域面积、切屑形态与切削力试验研究
Experimental Study on Surface Defect Area,Chip Morphology and Cutting Force of Aramid Fiber Reinforced Polymer in Spiral Milling
摘要
Abstract
The research on the spiral milling mechanism of Aramid fiber reinforced polymer could be better.Starting from the analysis on the spiral milling experiment of the Aramid fiber reinforced polymer,the work aims to systematically study the surface burr defect area,chip morphology,tool wear and changes of cutting force under a specific range of cutting parameters by the response surface method,variance analysis,t-test,and other methods,so as to explain the special nodular chip in the spiral milling process. For the chip morphology,when the cutting speed was low,most of the fibers were tensile fracture,and the chips were flocculent.After the cutting speed was further increased,the temperature rise was apparent,and the resin matrix had a melting trend.Under the spiral motion of the tool,the resin was stretched and extended,forming a long strip and a special nodular chip.With the increase of the feed speed,the sharpness of the blade was enhanced,the shearing effect was increasingly significant,the serration of the nodular chip was significantly intensified,and the separation trend was enhanced.When the feed speed increased to a certain extent,the long strip resin was cut into small pieces free on the milling surface,and the nodular chip disappearred.The nodular chip was a unique product under a specific range of cutting parameters.For the surface defect area,the surface defect area firstly increased and then decreased with the increase of the cutting speed,but the trend was not apparent and it gradually decreased with the increase of the feed speed,and the trend was evident.At the same time,the mathematical model of the defect area Sd was established by the response surface method,and the defect area was predicted and verified by experiments.The average error rate was 10.09%,which was more accurate. Two primary forms of tool wear were found in the spiral milling process of the Aramid fiber reinforced polymer.In the late cutting stage,nodular chips wrapped around the tool,intensifying the adhesion phenomenon.Under the dual action of force and heat,the crack further expanded,and finally,the adhesion fell off,resulting in tool damage.The milling process was a kind of intermittent cutting,and the edge teeth were always subject to alternating loads,resulting in early tool tip collapse and wear under the constant impact of stress and temperature.The cutting force firstly increased and then decreased with the increase of the feed speed,and the trend was evident,which was not a simple linear relationship.The main reason was that when the feed speed further increased,adiabatic shear phenomenon would occur,the role of cutting heat on the tool was too late to play,and at this time,the tool-workpiece contact area would be much larger than the tool-chip contact area,the impact of chips on the tool would be weakened,and the cutting force would be reduced.The average error rates of cutting forces Fx,Fy,and Fz obtained by the established mathematical model were 3.53%,13.62%,and 14.75%,respectively,and the prediction results were relatively accurate.This research work is helpful in further clarifying the cutting mechanism of the spiral milling of the Aramid fiber reinforced polymer and has important reference significance for improving the spiral milling quality of the Aramid fiber reinforced polymer.关键词
芳纶纤维增强复合材料/螺旋铣削/表面缺陷区域面积/切屑形态/刀具磨损/切削力Key words
Aramid fiber reinforced polymer/spiral milling/surface defect area/chip morphology/tool wear/cutting force分类
机械工程引用本文复制引用
王林,李茹,石文天,李娜,肖立强,步坤亭..芳纶纤维增强复合材料螺旋铣削表面缺陷区域面积、切屑形态与切削力试验研究[J].表面技术,2025,54(10):185-198,14.基金项目
国家自然科学基金(52475422,51975006,51505006)National Natural Science Foundation of China(52475422,51975006,51505006) （52475422,51975006,51505006）
