K.Palanikumar
,
L.Karunamoorthy
,
R.Karthikeyan
材料科学技术（英文）
In recent years, glass fiber reinforced plastics (GFRP) are being extensively used in variety of engineering applications in many different fields such as aerospace, oil, gas and process industries. However, the users of FRP are facing difficulties to machine it, because of fiber delamination, fiber pull out, short tool life, matrix debonding, burning and formation of powder like chips. The present investigation focuses on the optimization of machining parameters for surface roughness of glass fiber reinforced plastics (GFRP) using design of experiments (DoE). The machining parameters considered were speed, feed, depth of cut and workpiece (fiber orientation). An attempt was made to analyse the influence of factors and their interactions during machining. The results of the present study gives the optimal combination of machining parameters and this will help to improve the machining requirements of GFRP composites.
关键词:
Optimization
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null
,
null
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吕立生
,
王咏莉
,
李光
,
张孝辉
,
赵丹妮
宇航材料工艺
doi:10.3969/j.issn.1007-2330.2016.04.018
针对高体积分数铝基碳化硅材料车削加工过程中出现的刀具磨损严重、寿命低、切削难度大、零件质量难以保证等问题,采用聚晶金刚石刀具(PCD刀具)对其进行精密车削工艺实验,并利用扫描电镜、粗糙度仪、圆度仪等设备对已加工表面和刀具磨损形态进行观察分析研究.研究表明:刀具材料、切削速度、切削深度和进给量是影响高体积分数SiCp/Al复合材料加工质量的主要因素.当切削速度在25 ～ 40 rn/min、切削深度在25 ～ 35 μm和进给量为25 μm/r的PCD车刀时,切削效果最佳,可以有效地提高加工效率,改善工件表面加工质量,得到表面粗糙度为0.58 μm和圆柱度为0.91 μm的加工表面.
关键词:
SiCp/Al复合材料
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车削
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刀具磨损
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PCD刀具
