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高韧性芳纶纤维铣削表面质量和铣削力
申轶斐1,2,杨涛1,2,刘畅2,刘思南2,杜宇2
1.天津市现代机电装备技术重点实验室,天津 300387;2.天津工业大学机械工程学院,天津 300387
摘要:
芳纶纤维复合材料(AFRP)在铣削过程中会产生毛边、起毛、撕裂等缺陷,严重影响材料的装配使用。为解决上述问题对刀具结构、主轴转速、进给速度进行正交实验,从铣削力、铣削表面粗糙度以及铣削表面缺陷等方面研究铣削参数和刀具结构对芳纶纤维复合材料铣削表面质量的影响规律。实验结果表明:主轴转速和进给速度对铣削表面粗糙度和铣削力有显著影响,使用鱼鳞铣刀铣削的表面粗糙度比普通四刃立铣刀的表面粗糙度降低28%,并且毛边宽度较小,铣削表面质量最好,更适合于AFRP的铣削加工。
关键词:  芳纶纤维复合材料  铣削  鱼鳞铣刀  表面粗糙度  铣削力
DOI:10.12044/j.issn.1007-2330.2020.03.007
分类号:TB332
基金项目:
Surface Quality and Milling Force of High Toughness Aramid Fiber Milling
SHEN Yifei1,2, YANG Tao1,2, LIU Chang2, LIU Sinan2, DU Yu2
1.Advanced Mechatronics Equipment Technology Tianjin Area Major Laboratory,Tianjin 300387;2.School of Mechanical Engineering,Tianjin Polytechnic University,Tianjin 300387
Abstract:
Defects such as edge,fuzzing and tearing could be produced on aramid fiber composite(AFRP)during milling,which seriously affect the assembly and use of materials.In order to solve the above problems,orthogonal experiments were carried out on the tool structure,spindle speed,and feed speed.The effects of milling parameters and tool structure on the milling surface quality of aramid fiber composites were studied from the aspects of milling force,surface roughness and fracture morphology of fibers.The experimental results show that the spindle speed and feed speed have significant effects on the surface roughness and milling force.The surface roughness of burr tool is 28% lower than that of conventional four-edge end milling tools, and the width of rough edge is smaller, the surface quality of milling is better,and it is more suitable for AFRP milling.
Key words:  AFRP composite  Milling  Burr tool  Surface roughness  Milling force