| 外翅片管加工时飞边的形成机理 |
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| 引用本文： | 郑健燕,汤勇,曾志新.外翅片管加工时飞边的形成机理[J].华南理工大学学报(自然科学版),1999,27(6):128-131. |
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| 作者姓名： | 郑健燕 汤勇 曾志新 |
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| 作者单位： | 华南理工大学机电工程系 |
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| 摘 要： | 建立了挤压犁削加工外翅片管过程中的飞边的生成模型，给出了产生飞边的判定准则，并对影响飞边产生的因素进行了研究，理论分析及实验结果表明，当刀具挤压挤起的金属边脊的体积大于顶刃切出的翅片体积时，会形成飞边而失稳，反之，则挤压犁削过程稳定，无飞边产生。
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| 关 键 词： | 挤压犁削 外翅片管 飞边 热交换器 强化传热管 |
| 修稿时间： | 1998-10-25 |
FORMING MECHANISM OF OVERLAP DURING THE MANUFACTURING OF OUTSIDE FIN TUBE |
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| Zheng Jianyan,Tang Yong,Zeng Zhixin,Xia Wei,Ye Bangyan.FORMING MECHANISM OF OVERLAP DURING THE MANUFACTURING OF OUTSIDE FIN TUBE[J].Journal of South China University of Technology(Natural Science Edition),1999,27(6):128-131. |
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| Authors: | Zheng Jianyan Tang Yong Zeng Zhixin Xia Wei Ye Bangyan |
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| Abstract: | In this paper, the model for the formation of overlap in extrusion_ploughing for outside fin tube is developed. Judgement criterion of overlap is presented and the factors which influence the formation of overlap are studied. Theoretical analyses and experimental results show that the overlap forms if the volume of bulging side ridge extruded by tool exceeds the volume of fin cut by top edge, thus the extrusion_ploughing process becomes unsteady. On the contrary, no overlap forms and the extrusion_ploughing process can be carried out continuously. |
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| Keywords: | extrusion_ploughing outside fin tube overlap |
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