陶瓷基复合材料多能场辅助高效低损伤铣削加工工艺  

Multi-Energy Field Assisted High-Efficiency and Low Damage Milling Process of Ceramic Matrix Composites

作　　者：安庆龙[1] 李晗[1] 陈杰 明伟伟[1] 陈明[1] AN Qinglong;LI Han;CHEN Jie;MING Weiwei;CHEN Ming(Shanghai Jiao Tong University,Shanghai 200240,China;AVIC Chengdu Aircraft Industrial(Group)Co.,Ltd.,Chengdu 610091,China)

机构地区：[1]上海交通大学,上海200240 [2]航空工业成都飞机工业(集团)有限责任公司,成都610091

出　　处：《航空制造技术》2023年第14期40-51,共12页Aeronautical Manufacturing Technology

基　　金：航空发动机及燃气轮机基础科学中心项目(P2022–A–Ⅳ–002–001)。

摘　　要：陶瓷基复合材料具有高硬度、高强度、各向异性和非均质性的特点,导致其在加工过程中刀具磨损严重,加工质量差,加工效率低。对经过激光烧蚀处理的试样进行铣削加工,证明了铣削粉末状烧蚀产物时几乎不产生力和热量。利用有限元仿真并进行单向超声振动辅助铣削,发现超声振动辅助铣削工艺可以在不降低加工效率的前提下实现陶瓷基复合材料低损伤切削加工。提出了激光烧蚀与超声振动辅助铣削的组合加工工艺。基于加工质量、加工效率、刀具成本等多维指标对铣削加工策略进行综合评价。激光烧蚀+超声振动辅助铣削策略可以获得质量更好的已加工表面,同时加工时间少,刀具成本低,综合来看是可以实现陶瓷基复合材料高效低损伤铣削加工的工艺方案。Ceramic matrix composites have the characteristics of high hardness,high strength,anisotropy and heterogeneity,which lead to severe tool wear,poor processing quality and low processing efficiency during processing.The milling process of the laser ablation treated samples proved that almost no force and heat are generated when milling the powdery ablation products.Using finite element simulation and unidirectional ultrasonic vibration-assisted milling,it is found that the ultrasonic vibration-assisted milling process can achieve low-damage machining of ceramic matrix composites without reducing the processing efficiency.A combined processing technology of laser ablation and ultrasonic vibration assisted milling is proposed.Based on multi-dimensional indicators such as machining quality,machining efficiency,and tool cost,the milling machining strategy is comprehensively evaluated.The strategy of laser ablation+ultrasonic vibration assisted milling can obtain a better quality machined surface,and at the same time,the processing time is less,and the tool cost is low.In general,it is a process scheme that can realize high-efficiency and lowdamage milling of ceramic matrix composites.

关 键 词：陶瓷基复合材料 铣削 多能场辅助加工 加工质量 低损伤 

分 类 号：TB332[一般工业技术—材料科学与工程]