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| 自润滑齿轮齿面沟槽电解加工流场设计 |
| Design of Flow Field for Electrolytic Machining of Grooves on the Tooth Surface of Self‑lubricating Gears |
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| DOI：10.16018/j.cnki.cn32-1650/n.202303012 |
| 中文关键词: 电解加工 自润滑齿轮 流场分析 数值模拟 |
| 英文关键词: electrolytic machining self-lubricating gear flow field analysis numerical simulation |
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| 摘要点击次数: 29 |
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| 中文摘要: |
| 对自润滑齿轮齿面沟槽的电解加工流场进行分析及优化，选取加工过程中电解液的流道为研究对象，建立工件电化学腐蚀以及加工间隙内流体流动的物理模型，对电场及流场进行耦合，并数值模拟齿面沟槽的加工过程及对应状态下电解液的流动情况，分析了电解液流动形式及导流段、出口背压、阴极结构对流场的影响，得出如下结论: 正流式流道的加工间隙内，电解液的均匀性较好；在电解液出口处增加导流段能有效提升电解液流速；在电解液出口处施加背压，流场均匀性得到显著提高；将阴极端头处的直角转换为圆角，能够提高电解液流动的稳定性，在阴极端头处圆角半径为0. 3 mm时，加工间隙的流场均匀性最好。 |
| 英文摘要: |
| The electrochemical machining flow field of the groove on the tooth surface of self-lubricating gear is analyzed and optimized. The flow channel of the electrolyte in the machining process is selected as the research object. The physical model of electrochemical corrosion of workpiece and fluid flow in machining gap is established. The electric field and flow field are coupled, and the machining process of tooth surface groove and the flow of electrolyte in the corresponding state are numerically simulated. The effects of electrolyte flow form, diversion section, outlet back pressure and cathode structure on the flow field are analyzed. The conclusions are as follows: the uniformity of electrolyte is good in the machining gap of positive flow channel; the flow velocity of electrolyte can be effectively improved by adding a diversion section at the outlet of electrolyte; when back pressure is applied at the outlet of electrolyte, the uniformity of flow field is significantly improved; the stability of electrolyte flow can be improved by converting the right angle at the cathode end into a rounded corner; when the radius of fillet at the cathode tip is 0. 3 mm, the flow field uniformity of machining gap is the best. |
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