基于多孔喷嘴技术的阵列微织构仿真与实验
Simulation and experimental of array microtexturing based on porous nozzle technology
陈朝大 1巫少方 1单亮 2李康兴 1邹宝健 2吴思洋1
作者信息
- 1. 广州航海学院船舶与海洋工程学院,广东 广州 510725
- 2. 广东工业大学机电工程学院, 广东 广州 510006
- 折叠
摘要
射流电解加工单孔喷嘴系统存在显著不足,不能适用于大规模表面微织构制造,因此提出多孔条形喷嘴加工工艺.利用不受加工结构限制的 3D 打印技术制作多孔喷嘴模型,搭建射流电解加工实验装置.利用Comsol软件进行流场与电场仿真,以喷嘴到工件表面流速大小和电流密度等为评价依据,对喷嘴腔体内部流道进行优化.研究表明,条形喷嘴结构能够形成形态稳定的射流,对工件实现高效加工.当加工电压为 475 V、占空比为 70%时,材料去除率达到峰值.
Abstract
In response to the significant shortcomings of the single-hole nozzle system for jet electrolytic machining,which is not applicable to the field of manufacturing large-scale surface micro-weave structures,a porous strip nozzle machining process is proposed.The porous nozzle structure was fabricated using 3D printing technology,which is not limited by the processing structure,and the jet electrolysis machining device was constructed.Comsol software was used to simulate the flow field and electric field,and the flow channel inside the nozzle cavity was optimised based on the evaluation of the flow rate from the nozzle to the surface of the workpiece and the current density.The study shows that the bar nozzle structure can form a stable jet to achieve efficient machining of the workpiece.The peak material removal rate was achieved at a machining voltage of 475 V and a duty cycle of 70%.
关键词
射流电解加工/大规模微制造/多孔条形喷嘴/仿真与实验Key words
jet electrochemical machining/large-scale micro manufacturing/porous strip nozzle/simulation and experimentation引用本文复制引用
基金项目
广东省普通高等学校自然科学类平台和项目(2023)(重点领域专项2023ZDZX2051)
广州市高等教育教学质量与教学改革工程项目(2023)(2023CJRHJD002)
出版年
2024
NETL
NSTL
维普
万方数据