超声振动辅助切削对碳纤维增强树脂复合材料面下损伤影响的仿真研究  

Simulation Study on The Effect of Ultrasonic Vibration Assisted Cutting on Subsurface Damage of CFRP

作　　者：陈文翔 张旭 CHEN Wenxiang;ZHANG Xu(School of Mechanical and Automotive Engineering,Shanghai University of Engineering Science,Shanghai 201620)

机构地区：[1]上海工程技术大学机械与汽车工程学院,上海201620

出　　处：《宇航材料工艺》2023年第5期25-30,共6页Aerospace Materials & Technology

基　　金：国家自然科学基金资助项目(51775328)。

摘　　要：碳纤维增强树脂基复合材料(CFRP)在传统加工(OC)过程中存在着切削力过大、表面质量不佳、面下损伤较为严重等问题。为了改善上述问题,本文提出使用超声振动辅助切削(UVC)工艺加工CFRP,通过仿真分析对切削力与面下损伤深度进行研究。结果表明:使用UVC加工CFRP可降低13%~80%的切削力,且纤维方向角对切削力影响较小。与OC相比,UVC切削0°、45°纤维方向角的CFRP时可以减少约50%的面下损伤深度;在切削90°、135°纤维方向角的CFRP时虽然没有改善面下损伤深度,但取得了较为平整的已加工表面以及较小的损伤区域。There were some problems in the ordinary cutting(OC)process of carbon fiber reinforced resin matrix composites,such as excessive cutting force,poor surface quality and serious under surface damage.In order to improve the above problems,this paper proposed to use ultrasonic vibration assisted cutting processed CFRP.The cutting force and subsurface damage depth were studied through simulation analysis.The results show that machining CFRP with UVC can reduce the cutting force by 13%~80%,and the fiber direction angle has little effect on the cutting force.Compared with OC,UVC processing CFRP with 0°and 45°fiber direction angle can reduce the depth of subsurface damage by appoximately 50%;When processing CFRP with 90°and 135°fiber direction angle,although the damage depth under the surface is not improved,a relatively flat machined surface and small damage area are obtained.

关 键 词：有限元仿真 碳纤维增强树脂基复合材料 超声振动切削 面下损伤 

分 类 号：TB332[一般工业技术—材料科学与工程]