摘要
研究了磁场辅助刀具切削加工技术在微织构刀具切削中的表现,基于ANSYS软件对切削加工夹具进行了设计和有限元仿真,根据毕奥—萨伐尔定律设计磁场发生装置并搭建磁场辅助切削平台,探究了磁场参数对切削性能的影响.在施加一定的磁场强度和不同磁场方向(微织构方向平行于磁场方向记为DIR1,微织构方向垂直于磁场方向记为DIR2,切屑方向平行于磁场方向记为DIR3)下,使用微织构刀具(TT)和磁性纳米流体(MNF)对316L不锈钢进行切削试验,并使用SEM和EDS等技术对加工工件进行表征和分析.试验显示,在磁场方向为DIR1 的情况下,使用微织构刀具能够获得最优的切削性能.结果表明,磁场参数的选择对微织构刀具切削性能有重要影响,同时在实际应用中为磁场辅助切削加工技术提供了指导.
Abstract
The application of magnetic field assisted tool cutting machining technology to the cutting performance of micro-woven tools is investigated.Based on ANSYS design and finite element simulation of the cutting machining fixture,the magnetic field generation device is designed and the magnetic field assisted cutting platform is built according to the Biot-Savard law,and the influence of the choice of magnetic field parameters on the cutting performance is investigated.In this paper,cutting tests are carried out on 316L stainless steel using a micro-weave tool(TT)and magnetic nanofluids(MNF)with a certain magnetic field strength varying the magnetic field direction(DIR1 for micro-weave parallel to the magnetic field direction,DIR2 for micro-weave perpendicular to the magnetic field direction and DIR3 for chip direction parallel to the magnetic field direction),and the machined workpiece is characterised and analysed by SEM and EDS.The results show that the optimal cutting performance is achieved with the microweave tool at a magnetic field direction of DIR1.It's demon-strated that the choice of magnetic field parameters has an important influence on the cutting performance of the microweave tool and provides guidance for the practical application of magnetic field assisted cutting technology.
基金项目
国家自然科学基金(51905360)
中国博士后科学基金(2022M712309)
苏州市科技发展计划(人才专项)(ZXL2022493)
NETL
NSTL
万方数据