FAN Wentao, CHEN Yan, CHEN Yijia, XIE Songfeng, JI Junjie, JI Daohang. Research on 3D Surface Topography in Milling of CFRP. 航空制造技术, 2021, 64(9): 62-67.
FAN Wentao, CHEN Yan, CHEN Yijia, XIE Songfeng, JI Junjie, JI Daohang. Research on 3D Surface Topography in Milling of CFRP. 航空制造技术, 2021, 64(9): 62-67. DOI: 10.16080/j.issn1671-833x.2021.09.062.
Research on 3D Surface Topography in Milling of CFRP
碳纤维增强树脂基复合材料(Carbon fiber reinforced polymer,CFRP)是一种典型的难加工材料,其铣削加工存在表面质量差、表面形貌难以充分表征等问题,为解决该问题,开展了不同进给速度下的槽铣试验,研究了CFRP 铣削表面形貌及其形成机理。结果表明,三维表面粗糙度较二维表面粗糙度能更加全面地反映 CFRP 铣削表面形貌,并选用了算术平均高度 S
a
、均方根高度 S
q
、偏斜度 S
sk
以及陡峭度 S
ku
对 CFRP 表面形貌进行联合表征。随着进给速度的增大,三维表征参数中S
a
、S
q
逐渐增大,S
sk
和S
ku
逐渐减小。为保证较好的加工表面质量,应选用顺铣的加工方式,且进给速度不大于 1200mm/min。
Abstract
Carbon fiber reinforced polymer (CFRP) is a typical difficult–to–machining material. There are still some problems in its milling process
such as the poor surface quality and difficulty in fully characterizing the surface topography. In this article
slot–milling tests were carried out with different feed speeds
and the surface topography and machining mechanism of CFRP milling was studied. It was found that there was a big deficiency using two–dimensional surface roughness parameters
three–dimensional surface roughness can more comprehensively reflect the surface topography of CFRP milling. The surface topography of CFRP was jointly characterized by arithmetic mean height S
a
root mean square height S
q
skewness S
sk
and kurtosis S
ku
. With the increase of the feed speed
S
a
and S
q
increase gradually
but S
sk
and S
ku
decrease. In order to guarantee the machined surface quality
the down milling method is used
and the feed speed should be less than 1200mm/min.
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Related Institution
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